diff --git a/Documentation/driver-api/generic-counter.rst b/Documentation/driver-api/generic-counter.rst
index 64fe7db080e5..252aeb639bc4 100644
--- a/Documentation/driver-api/generic-counter.rst
+++ b/Documentation/driver-api/generic-counter.rst
@@ -247,7 +247,7 @@ for defining a counter device.
.. kernel-doc:: include/linux/counter.h
:internal:
-.. kernel-doc:: drivers/counter/counter.c
+.. kernel-doc:: drivers/counter/counter-core.c
:export:
Implementation
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index ba0e8e6337c0..7890b395e629 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -322,6 +322,8 @@ tcp_app_win - INTEGER
Reserve max(window/2^tcp_app_win, mss) of window for application
buffer. Value 0 is special, it means that nothing is reserved.
+ Possible values are [0, 31], inclusive.
+
Default: 31
tcp_autocorking - BOOLEAN
diff --git a/Documentation/sound/hd-audio/models.rst b/Documentation/sound/hd-audio/models.rst
index 9b52f50a6854..120430450014 100644
--- a/Documentation/sound/hd-audio/models.rst
+++ b/Documentation/sound/hd-audio/models.rst
@@ -704,7 +704,7 @@ ref
no-jd
BIOS setup but without jack-detection
intel
- Intel DG45* mobos
+ Intel D*45* mobos
dell-m6-amic
Dell desktops/laptops with analog mics
dell-m6-dmic
diff --git a/MAINTAINERS b/MAINTAINERS
index d0884a5d49b9..2d3d2155c744 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4813,7 +4813,6 @@ F: Documentation/ABI/testing/sysfs-bus-counter
F: Documentation/driver-api/generic-counter.rst
F: drivers/counter/
F: include/linux/counter.h
-F: include/linux/counter_enum.h
CP2615 I2C DRIVER
M: Bence Csókás <bence98@xxxxxxxxxx>
diff --git a/Makefile b/Makefile
index b06324521d28..49ae089784a6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 15
-SUBLEVEL = 107
+SUBLEVEL = 108
EXTRAVERSION =
NAME = Trick or Treat
diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
index 106f83a5ea6d..35e03f6a6212 100644
--- a/arch/arm/lib/uaccess_with_memcpy.c
+++ b/arch/arm/lib/uaccess_with_memcpy.c
@@ -121,7 +121,7 @@ __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n)
tocopy = n;
ua_flags = uaccess_save_and_enable();
- memcpy((void *)to, from, tocopy);
+ __memcpy((void *)to, from, tocopy);
uaccess_restore(ua_flags);
to += tocopy;
from += tocopy;
@@ -188,7 +188,7 @@ __clear_user_memset(void __user *addr, unsigned long n)
tocopy = n;
ua_flags = uaccess_save_and_enable();
- memset((void *)addr, 0, tocopy);
+ __memset((void *)addr, 0, tocopy);
uaccess_restore(ua_flags);
addr += tocopy;
n -= tocopy;
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index 2af3c37445e0..886048c08363 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -554,6 +554,7 @@ void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val)
__vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= BIT(i);
}
}
+ kvm_vcpu_pmu_restore_guest(vcpu);
}
/**
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index c11612db4a37..d00170d7ddf5 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -702,7 +702,6 @@ static bool access_pmcr(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
val |= ARMV8_PMU_PMCR_LC;
__vcpu_sys_reg(vcpu, PMCR_EL0) = val;
kvm_pmu_handle_pmcr(vcpu, val);
- kvm_vcpu_pmu_restore_guest(vcpu);
} else {
/* PMCR.P & PMCR.C are RAZ */
val = __vcpu_sys_reg(vcpu, PMCR_EL0)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 5fb829256b59..9c038c8cebeb 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -367,6 +367,7 @@ void update_numa_distance(struct device_node *node)
WARN(numa_distance_table[nid][nid] == -1,
"NUMA distance details for node %d not provided\n", nid);
}
+EXPORT_SYMBOL_GPL(update_numa_distance);
/*
* ibm,numa-lookup-index-table= {N, domainid1, domainid2, ..... domainidN}
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index f48e87ac89c9..3cfcc748052e 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -1159,6 +1159,13 @@ static int papr_scm_probe(struct platform_device *pdev)
return -ENODEV;
}
+ /*
+ * open firmware platform device create won't update the NUMA
+ * distance table. For PAPR SCM devices we use numa_map_to_online_node()
+ * to find the nearest online NUMA node and that requires correct
+ * distance table information.
+ */
+ update_numa_distance(dn);
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p)
diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c
index f8fb85dc94b7..8892569aad23 100644
--- a/arch/riscv/kernel/signal.c
+++ b/arch/riscv/kernel/signal.c
@@ -16,6 +16,7 @@
#include <asm/vdso.h>
#include <asm/switch_to.h>
#include <asm/csr.h>
+#include <asm/cacheflush.h>
extern u32 __user_rt_sigreturn[2];
@@ -178,6 +179,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
{
struct rt_sigframe __user *frame;
long err = 0;
+ unsigned long __maybe_unused addr;
frame = get_sigframe(ksig, regs, sizeof(*frame));
if (!access_ok(frame, sizeof(*frame)))
@@ -206,7 +208,12 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
if (copy_to_user(&frame->sigreturn_code, __user_rt_sigreturn,
sizeof(frame->sigreturn_code)))
return -EFAULT;
- regs->ra = (unsigned long)&frame->sigreturn_code;
+
+ addr = (unsigned long)&frame->sigreturn_code;
+ /* Make sure the two instructions are pushed to icache. */
+ flush_icache_range(addr, addr + sizeof(frame->sigreturn_code));
+
+ regs->ra = addr;
#endif /* CONFIG_MMU */
/*
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 8b395821cb8d..d3e3b16ea9cf 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -32,8 +32,8 @@ static int __init iommu_init_noop(void) { return 0; }
static void iommu_shutdown_noop(void) { }
bool __init bool_x86_init_noop(void) { return false; }
void x86_op_int_noop(int cpu) { }
-static __init int set_rtc_noop(const struct timespec64 *now) { return -EINVAL; }
-static __init void get_rtc_noop(struct timespec64 *now) { }
+static int set_rtc_noop(const struct timespec64 *now) { return -EINVAL; }
+static void get_rtc_noop(struct timespec64 *now) { }
static __initconst const struct of_device_id of_cmos_match[] = {
{ .compatible = "motorola,mc146818" },
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 615a76d70019..bf5161dcf89e 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -7,6 +7,7 @@
#include <linux/dmi.h>
#include <linux/pci.h>
#include <linux/vgaarb.h>
+#include <asm/amd_nb.h>
#include <asm/hpet.h>
#include <asm/pci_x86.h>
@@ -824,3 +825,23 @@ static void rs690_fix_64bit_dma(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7910, rs690_fix_64bit_dma);
#endif
+
+#ifdef CONFIG_AMD_NB
+
+#define AMD_15B8_RCC_DEV2_EPF0_STRAP2 0x10136008
+#define AMD_15B8_RCC_DEV2_EPF0_STRAP2_NO_SOFT_RESET_DEV2_F0_MASK 0x00000080L
+
+static void quirk_clear_strap_no_soft_reset_dev2_f0(struct pci_dev *dev)
+{
+ u32 data;
+
+ if (!amd_smn_read(0, AMD_15B8_RCC_DEV2_EPF0_STRAP2, &data)) {
+ data &= ~AMD_15B8_RCC_DEV2_EPF0_STRAP2_NO_SOFT_RESET_DEV2_F0_MASK;
+ if (amd_smn_write(0, AMD_15B8_RCC_DEV2_EPF0_STRAP2, data))
+ pci_err(dev, "Failed to write data 0x%x\n", data);
+ } else {
+ pci_err(dev, "Failed to read data\n");
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x15b8, quirk_clear_strap_no_soft_reset_dev2_f0);
+#endif
diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index f94a1d1ad3a6..df279538cead 100644
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -79,16 +79,16 @@ static int pkcs7_digest(struct pkcs7_message *pkcs7,
}
if (sinfo->msgdigest_len != sig->digest_size) {
- pr_debug("Sig %u: Invalid digest size (%u)\n",
- sinfo->index, sinfo->msgdigest_len);
+ pr_warn("Sig %u: Invalid digest size (%u)\n",
+ sinfo->index, sinfo->msgdigest_len);
ret = -EBADMSG;
goto error;
}
if (memcmp(sig->digest, sinfo->msgdigest,
sinfo->msgdigest_len) != 0) {
- pr_debug("Sig %u: Message digest doesn't match\n",
- sinfo->index);
+ pr_warn("Sig %u: Message digest doesn't match\n",
+ sinfo->index);
ret = -EKEYREJECTED;
goto error;
}
@@ -481,7 +481,7 @@ int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7,
const void *data, size_t datalen)
{
if (pkcs7->data) {
- pr_debug("Data already supplied\n");
+ pr_warn("Data already supplied\n");
return -EINVAL;
}
pkcs7->data = data;
diff --git a/crypto/asymmetric_keys/verify_pefile.c b/crypto/asymmetric_keys/verify_pefile.c
index 7553ab18db89..22beaf2213a2 100644
--- a/crypto/asymmetric_keys/verify_pefile.c
+++ b/crypto/asymmetric_keys/verify_pefile.c
@@ -74,7 +74,7 @@ static int pefile_parse_binary(const void *pebuf, unsigned int pelen,
break;
default:
- pr_debug("Unknown PEOPT magic = %04hx\n", pe32->magic);
+ pr_warn("Unknown PEOPT magic = %04hx\n", pe32->magic);
return -ELIBBAD;
}
@@ -95,7 +95,7 @@ static int pefile_parse_binary(const void *pebuf, unsigned int pelen,
ctx->certs_size = ddir->certs.size;
if (!ddir->certs.virtual_address || !ddir->certs.size) {
- pr_debug("Unsigned PE binary\n");
+ pr_warn("Unsigned PE binary\n");
return -ENODATA;
}
@@ -127,7 +127,7 @@ static int pefile_strip_sig_wrapper(const void *pebuf,
unsigned len;
if (ctx->sig_len < sizeof(wrapper)) {
- pr_debug("Signature wrapper too short\n");
+ pr_warn("Signature wrapper too short\n");
return -ELIBBAD;
}
@@ -135,19 +135,23 @@ static int pefile_strip_sig_wrapper(const void *pebuf,
pr_debug("sig wrapper = { %x, %x, %x }\n",
wrapper.length, wrapper.revision, wrapper.cert_type);
- /* Both pesign and sbsign round up the length of certificate table
- * (in optional header data directories) to 8 byte alignment.
+ /* sbsign rounds up the length of certificate table (in optional
+ * header data directories) to 8 byte alignment. However, the PE
+ * specification states that while entries are 8-byte aligned, this is
+ * not included in their length, and as a result, pesign has not
+ * rounded up since 0.110.
*/
- if (round_up(wrapper.length, 8) != ctx->sig_len) {
- pr_debug("Signature wrapper len wrong\n");
+ if (wrapper.length > ctx->sig_len) {
+ pr_warn("Signature wrapper bigger than sig len (%x > %x)\n",
+ ctx->sig_len, wrapper.length);
return -ELIBBAD;
}
if (wrapper.revision != WIN_CERT_REVISION_2_0) {
- pr_debug("Signature is not revision 2.0\n");
+ pr_warn("Signature is not revision 2.0\n");
return -ENOTSUPP;
}
if (wrapper.cert_type != WIN_CERT_TYPE_PKCS_SIGNED_DATA) {
- pr_debug("Signature certificate type is not PKCS\n");
+ pr_warn("Signature certificate type is not PKCS\n");
return -ENOTSUPP;
}
@@ -160,7 +164,7 @@ static int pefile_strip_sig_wrapper(const void *pebuf,
ctx->sig_offset += sizeof(wrapper);
ctx->sig_len -= sizeof(wrapper);
if (ctx->sig_len < 4) {
- pr_debug("Signature data missing\n");
+ pr_warn("Signature data missing\n");
return -EKEYREJECTED;
}
@@ -194,7 +198,7 @@ static int pefile_strip_sig_wrapper(const void *pebuf,
return 0;
}
not_pkcs7:
- pr_debug("Signature data not PKCS#7\n");
+ pr_warn("Signature data not PKCS#7\n");
return -ELIBBAD;
}
@@ -337,8 +341,8 @@ static int pefile_digest_pe(const void *pebuf, unsigned int pelen,
digest_size = crypto_shash_digestsize(tfm);
if (digest_size != ctx->digest_len) {
- pr_debug("Digest size mismatch (%zx != %x)\n",
- digest_size, ctx->digest_len);
+ pr_warn("Digest size mismatch (%zx != %x)\n",
+ digest_size, ctx->digest_len);
ret = -EBADMSG;
goto error_no_desc;
}
@@ -369,7 +373,7 @@ static int pefile_digest_pe(const void *pebuf, unsigned int pelen,
* PKCS#7 certificate.
*/
if (memcmp(digest, ctx->digest, ctx->digest_len) != 0) {
- pr_debug("Digest mismatch\n");
+ pr_warn("Digest mismatch\n");
ret = -EKEYREJECTED;
} else {
pr_debug("The digests match!\n");
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 3b9f89487336..803dc6afa6d6 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -396,6 +396,13 @@ static const struct dmi_system_id medion_laptop[] = {
DMI_MATCH(DMI_BOARD_NAME, "M17T"),
},
},
+ {
+ .ident = "MEDION S17413",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+ DMI_MATCH(DMI_BOARD_NAME, "M1xA"),
+ },
+ },
{ }
};
diff --git a/drivers/clk/sprd/common.c b/drivers/clk/sprd/common.c
index ce81e4087a8f..2bfbab8db94b 100644
--- a/drivers/clk/sprd/common.c
+++ b/drivers/clk/sprd/common.c
@@ -17,7 +17,6 @@ static const struct regmap_config sprdclk_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
- .max_register = 0xffff,
.fast_io = true,
};
@@ -43,6 +42,8 @@ int sprd_clk_regmap_init(struct platform_device *pdev,
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node, *np;
struct regmap *regmap;
+ struct resource *res;
+ struct regmap_config reg_config = sprdclk_regmap_config;
if (of_find_property(node, "sprd,syscon", NULL)) {
regmap = syscon_regmap_lookup_by_phandle(node, "sprd,syscon");
@@ -59,12 +60,14 @@ int sprd_clk_regmap_init(struct platform_device *pdev,
return PTR_ERR(regmap);
}
} else {
- base = devm_platform_ioremap_resource(pdev, 0);
+ base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(base))
return PTR_ERR(base);
+ reg_config.max_register = resource_size(res) - reg_config.reg_stride;
+
regmap = devm_regmap_init_mmio(&pdev->dev, base,
- &sprdclk_regmap_config);
+ ®_config);
if (IS_ERR(regmap)) {
pr_err("failed to init regmap\n");
return PTR_ERR(regmap);
diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c
index 0caa60537b14..e00cf156c6e9 100644
--- a/drivers/counter/104-quad-8.c
+++ b/drivers/counter/104-quad-8.c
@@ -117,7 +117,7 @@ static int quad8_signal_read(struct counter_device *counter,
}
static int quad8_count_read(struct counter_device *counter,
- struct counter_count *count, unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct quad8 *const priv = counter->priv;
const int base_offset = priv->base + 2 * count->id;
@@ -148,7 +148,7 @@ static int quad8_count_read(struct counter_device *counter,
}
static int quad8_count_write(struct counter_device *counter,
- struct counter_count *count, unsigned long val)
+ struct counter_count *count, u64 val)
{
struct quad8 *const priv = counter->priv;
const int base_offset = priv->base + 2 * count->id;
@@ -188,22 +188,16 @@ static int quad8_count_write(struct counter_device *counter,
return 0;
}
-enum quad8_count_function {
- QUAD8_COUNT_FUNCTION_PULSE_DIRECTION = 0,
- QUAD8_COUNT_FUNCTION_QUADRATURE_X1,
- QUAD8_COUNT_FUNCTION_QUADRATURE_X2,
- QUAD8_COUNT_FUNCTION_QUADRATURE_X4
-};
-
static const enum counter_function quad8_count_functions_list[] = {
- [QUAD8_COUNT_FUNCTION_PULSE_DIRECTION] = COUNTER_FUNCTION_PULSE_DIRECTION,
- [QUAD8_COUNT_FUNCTION_QUADRATURE_X1] = COUNTER_FUNCTION_QUADRATURE_X1_A,
- [QUAD8_COUNT_FUNCTION_QUADRATURE_X2] = COUNTER_FUNCTION_QUADRATURE_X2_A,
- [QUAD8_COUNT_FUNCTION_QUADRATURE_X4] = COUNTER_FUNCTION_QUADRATURE_X4
+ COUNTER_FUNCTION_PULSE_DIRECTION,
+ COUNTER_FUNCTION_QUADRATURE_X1_A,
+ COUNTER_FUNCTION_QUADRATURE_X2_A,
+ COUNTER_FUNCTION_QUADRATURE_X4,
};
-static int quad8_function_get(struct counter_device *counter,
- struct counter_count *count, size_t *function)
+static int quad8_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
struct quad8 *const priv = counter->priv;
const int id = count->id;
@@ -213,25 +207,26 @@ static int quad8_function_get(struct counter_device *counter,
if (priv->quadrature_mode[id])
switch (priv->quadrature_scale[id]) {
case 0:
- *function = QUAD8_COUNT_FUNCTION_QUADRATURE_X1;
+ *function = COUNTER_FUNCTION_QUADRATURE_X1_A;
break;
case 1:
- *function = QUAD8_COUNT_FUNCTION_QUADRATURE_X2;
+ *function = COUNTER_FUNCTION_QUADRATURE_X2_A;
break;
case 2:
- *function = QUAD8_COUNT_FUNCTION_QUADRATURE_X4;
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
break;
}
else
- *function = QUAD8_COUNT_FUNCTION_PULSE_DIRECTION;
+ *function = COUNTER_FUNCTION_PULSE_DIRECTION;
mutex_unlock(&priv->lock);
return 0;
}
-static int quad8_function_set(struct counter_device *counter,
- struct counter_count *count, size_t function)
+static int quad8_function_write(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function function)
{
struct quad8 *const priv = counter->priv;
const int id = count->id;
@@ -247,7 +242,7 @@ static int quad8_function_set(struct counter_device *counter,
mode_cfg = priv->count_mode[id] << 1;
idr_cfg = priv->index_polarity[id] << 1;
- if (function == QUAD8_COUNT_FUNCTION_PULSE_DIRECTION) {
+ if (function == COUNTER_FUNCTION_PULSE_DIRECTION) {
*quadrature_mode = 0;
/* Quadrature scaling only available in quadrature mode */
@@ -263,15 +258,15 @@ static int quad8_function_set(struct counter_device *counter,
*quadrature_mode = 1;
switch (function) {
- case QUAD8_COUNT_FUNCTION_QUADRATURE_X1:
+ case COUNTER_FUNCTION_QUADRATURE_X1_A:
*scale = 0;
mode_cfg |= QUAD8_CMR_QUADRATURE_X1;
break;
- case QUAD8_COUNT_FUNCTION_QUADRATURE_X2:
+ case COUNTER_FUNCTION_QUADRATURE_X2_A:
*scale = 1;
mode_cfg |= QUAD8_CMR_QUADRATURE_X2;
break;
- case QUAD8_COUNT_FUNCTION_QUADRATURE_X4:
+ case COUNTER_FUNCTION_QUADRATURE_X4:
*scale = 2;
mode_cfg |= QUAD8_CMR_QUADRATURE_X4;
break;
@@ -290,8 +285,9 @@ static int quad8_function_set(struct counter_device *counter,
return 0;
}
-static void quad8_direction_get(struct counter_device *counter,
- struct counter_count *count, enum counter_count_direction *direction)
+static int quad8_direction_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_count_direction *direction)
{
const struct quad8 *const priv = counter->priv;
unsigned int ud_flag;
@@ -302,76 +298,74 @@ static void quad8_direction_get(struct counter_device *counter,
*direction = (ud_flag) ? COUNTER_COUNT_DIRECTION_FORWARD :
COUNTER_COUNT_DIRECTION_BACKWARD;
-}
-enum quad8_synapse_action {
- QUAD8_SYNAPSE_ACTION_NONE = 0,
- QUAD8_SYNAPSE_ACTION_RISING_EDGE,
- QUAD8_SYNAPSE_ACTION_FALLING_EDGE,
- QUAD8_SYNAPSE_ACTION_BOTH_EDGES
-};
+ return 0;
+}
static const enum counter_synapse_action quad8_index_actions_list[] = {
- [QUAD8_SYNAPSE_ACTION_NONE] = COUNTER_SYNAPSE_ACTION_NONE,
- [QUAD8_SYNAPSE_ACTION_RISING_EDGE] = COUNTER_SYNAPSE_ACTION_RISING_EDGE
+ COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_RISING_EDGE,
};
static const enum counter_synapse_action quad8_synapse_actions_list[] = {
- [QUAD8_SYNAPSE_ACTION_NONE] = COUNTER_SYNAPSE_ACTION_NONE,
- [QUAD8_SYNAPSE_ACTION_RISING_EDGE] = COUNTER_SYNAPSE_ACTION_RISING_EDGE,
- [QUAD8_SYNAPSE_ACTION_FALLING_EDGE] = COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
- [QUAD8_SYNAPSE_ACTION_BOTH_EDGES] = COUNTER_SYNAPSE_ACTION_BOTH_EDGES
+ COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_RISING_EDGE,
+ COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
+ COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
};
-static int quad8_action_get(struct counter_device *counter,
- struct counter_count *count, struct counter_synapse *synapse,
- size_t *action)
+static int quad8_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
struct quad8 *const priv = counter->priv;
int err;
- size_t function = 0;
+ enum counter_function function;
const size_t signal_a_id = count->synapses[0].signal->id;
enum counter_count_direction direction;
/* Handle Index signals */
if (synapse->signal->id >= 16) {
- if (priv->preset_enable[count->id])
- *action = QUAD8_SYNAPSE_ACTION_RISING_EDGE;
+ if (!priv->preset_enable[count->id])
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
else
- *action = QUAD8_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
return 0;
}
- err = quad8_function_get(counter, count, &function);
+ err = quad8_function_read(counter, count, &function);
if (err)
return err;
/* Default action mode */
- *action = QUAD8_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
/* Determine action mode based on current count function mode */
switch (function) {
- case QUAD8_COUNT_FUNCTION_PULSE_DIRECTION:
+ case COUNTER_FUNCTION_PULSE_DIRECTION:
if (synapse->signal->id == signal_a_id)
- *action = QUAD8_SYNAPSE_ACTION_RISING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
return 0;
- case QUAD8_COUNT_FUNCTION_QUADRATURE_X1:
+ case COUNTER_FUNCTION_QUADRATURE_X1_A:
if (synapse->signal->id == signal_a_id) {
- quad8_direction_get(counter, count, &direction);
+ err = quad8_direction_read(counter, count, &direction);
+ if (err)
+ return err;
if (direction == COUNTER_COUNT_DIRECTION_FORWARD)
- *action = QUAD8_SYNAPSE_ACTION_RISING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
else
- *action = QUAD8_SYNAPSE_ACTION_FALLING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_FALLING_EDGE;
}
return 0;
- case QUAD8_COUNT_FUNCTION_QUADRATURE_X2:
+ case COUNTER_FUNCTION_QUADRATURE_X2_A:
if (synapse->signal->id == signal_a_id)
- *action = QUAD8_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
- case QUAD8_COUNT_FUNCTION_QUADRATURE_X4:
- *action = QUAD8_SYNAPSE_ACTION_BOTH_EDGES;
+ case COUNTER_FUNCTION_QUADRATURE_X4:
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
default:
/* should never reach this path */
@@ -383,9 +377,9 @@ static const struct counter_ops quad8_ops = {
.signal_read = quad8_signal_read,
.count_read = quad8_count_read,
.count_write = quad8_count_write,
- .function_get = quad8_function_get,
- .function_set = quad8_function_set,
- .action_get = quad8_action_get
+ .function_read = quad8_function_read,
+ .function_write = quad8_function_write,
+ .action_read = quad8_action_read
};
static const char *const quad8_index_polarity_modes[] = {
@@ -394,7 +388,8 @@ static const char *const quad8_index_polarity_modes[] = {
};
static int quad8_index_polarity_get(struct counter_device *counter,
- struct counter_signal *signal, size_t *index_polarity)
+ struct counter_signal *signal,
+ u32 *index_polarity)
{
const struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id - 16;
@@ -405,7 +400,8 @@ static int quad8_index_polarity_get(struct counter_device *counter,
}
static int quad8_index_polarity_set(struct counter_device *counter,
- struct counter_signal *signal, size_t index_polarity)
+ struct counter_signal *signal,
+ u32 index_polarity)
{
struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id - 16;
@@ -426,20 +422,14 @@ static int quad8_index_polarity_set(struct counter_device *counter,
return 0;
}
-static struct counter_signal_enum_ext quad8_index_pol_enum = {
- .items = quad8_index_polarity_modes,
- .num_items = ARRAY_SIZE(quad8_index_polarity_modes),
- .get = quad8_index_polarity_get,
- .set = quad8_index_polarity_set
-};
-
static const char *const quad8_synchronous_modes[] = {
"non-synchronous",
"synchronous"
};
static int quad8_synchronous_mode_get(struct counter_device *counter,
- struct counter_signal *signal, size_t *synchronous_mode)
+ struct counter_signal *signal,
+ u32 *synchronous_mode)
{
const struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id - 16;
@@ -450,7 +440,8 @@ static int quad8_synchronous_mode_get(struct counter_device *counter,
}
static int quad8_synchronous_mode_set(struct counter_device *counter,
- struct counter_signal *signal, size_t synchronous_mode)
+ struct counter_signal *signal,
+ u32 synchronous_mode)
{
struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id - 16;
@@ -477,22 +468,18 @@ static int quad8_synchronous_mode_set(struct counter_device *counter,
return 0;
}
-static struct counter_signal_enum_ext quad8_syn_mode_enum = {
- .items = quad8_synchronous_modes,
- .num_items = ARRAY_SIZE(quad8_synchronous_modes),
- .get = quad8_synchronous_mode_get,
- .set = quad8_synchronous_mode_set
-};
-
-static ssize_t quad8_count_floor_read(struct counter_device *counter,
- struct counter_count *count, void *private, char *buf)
+static int quad8_count_floor_read(struct counter_device *counter,
+ struct counter_count *count, u64 *floor)
{
/* Only a floor of 0 is supported */
- return sprintf(buf, "0\n");
+ *floor = 0;
+
+ return 0;
}
-static int quad8_count_mode_get(struct counter_device *counter,
- struct counter_count *count, size_t *cnt_mode)
+static int quad8_count_mode_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_count_mode *cnt_mode)
{
const struct quad8 *const priv = counter->priv;
@@ -515,26 +502,28 @@ static int quad8_count_mode_get(struct counter_device *counter,
return 0;
}
-static int quad8_count_mode_set(struct counter_device *counter,
- struct counter_count *count, size_t cnt_mode)
+static int quad8_count_mode_write(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_count_mode cnt_mode)
{
struct quad8 *const priv = counter->priv;
+ unsigned int count_mode;
unsigned int mode_cfg;
const int base_offset = priv->base + 2 * count->id + 1;
/* Map Generic Counter count mode to 104-QUAD-8 count mode */
switch (cnt_mode) {
case COUNTER_COUNT_MODE_NORMAL:
- cnt_mode = 0;
+ count_mode = 0;
break;
case COUNTER_COUNT_MODE_RANGE_LIMIT:
- cnt_mode = 1;
+ count_mode = 1;
break;
case COUNTER_COUNT_MODE_NON_RECYCLE:
- cnt_mode = 2;
+ count_mode = 2;
break;
case COUNTER_COUNT_MODE_MODULO_N:
- cnt_mode = 3;
+ count_mode = 3;
break;
default:
/* should never reach this path */
@@ -543,10 +532,10 @@ static int quad8_count_mode_set(struct counter_device *counter,
mutex_lock(&priv->lock);
- priv->count_mode[count->id] = cnt_mode;
+ priv->count_mode[count->id] = count_mode;
/* Set count mode configuration value */
- mode_cfg = cnt_mode << 1;
+ mode_cfg = count_mode << 1;
/* Add quadrature mode configuration */
if (priv->quadrature_mode[count->id])
@@ -560,56 +549,35 @@ static int quad8_count_mode_set(struct counter_device *counter,
return 0;
}
-static struct counter_count_enum_ext quad8_cnt_mode_enum = {
- .items = counter_count_mode_str,
- .num_items = ARRAY_SIZE(counter_count_mode_str),
- .get = quad8_count_mode_get,
- .set = quad8_count_mode_set
-};
-
-static ssize_t quad8_count_direction_read(struct counter_device *counter,
- struct counter_count *count, void *priv, char *buf)
-{
- enum counter_count_direction dir;
-
- quad8_direction_get(counter, count, &dir);
-
- return sprintf(buf, "%s\n", counter_count_direction_str[dir]);
-}
-
-static ssize_t quad8_count_enable_read(struct counter_device *counter,
- struct counter_count *count, void *private, char *buf)
+static int quad8_count_enable_read(struct counter_device *counter,
+ struct counter_count *count, u8 *enable)
{
const struct quad8 *const priv = counter->priv;
- return sprintf(buf, "%u\n", priv->ab_enable[count->id]);
+ *enable = priv->ab_enable[count->id];
+
+ return 0;
}
-static ssize_t quad8_count_enable_write(struct counter_device *counter,
- struct counter_count *count, void *private, const char *buf, size_t len)
+static int quad8_count_enable_write(struct counter_device *counter,
+ struct counter_count *count, u8 enable)
{
struct quad8 *const priv = counter->priv;
const int base_offset = priv->base + 2 * count->id;
- int err;
- bool ab_enable;
unsigned int ior_cfg;
- err = kstrtobool(buf, &ab_enable);
- if (err)
- return err;
-
mutex_lock(&priv->lock);
- priv->ab_enable[count->id] = ab_enable;
+ priv->ab_enable[count->id] = enable;
- ior_cfg = ab_enable | priv->preset_enable[count->id] << 1;
+ ior_cfg = enable | priv->preset_enable[count->id] << 1;
/* Load I/O control configuration */
outb(QUAD8_CTR_IOR | ior_cfg, base_offset + 1);
mutex_unlock(&priv->lock);
- return len;
+ return 0;
}
static const char *const quad8_noise_error_states[] = {
@@ -618,7 +586,7 @@ static const char *const quad8_noise_error_states[] = {
};
static int quad8_error_noise_get(struct counter_device *counter,
- struct counter_count *count, size_t *noise_error)
+ struct counter_count *count, u32 *noise_error)
{
const struct quad8 *const priv = counter->priv;
const int base_offset = priv->base + 2 * count->id + 1;
@@ -628,18 +596,14 @@ static int quad8_error_noise_get(struct counter_device *counter,
return 0;
}
-static struct counter_count_enum_ext quad8_error_noise_enum = {
- .items = quad8_noise_error_states,
- .num_items = ARRAY_SIZE(quad8_noise_error_states),
- .get = quad8_error_noise_get
-};
-
-static ssize_t quad8_count_preset_read(struct counter_device *counter,
- struct counter_count *count, void *private, char *buf)
+static int quad8_count_preset_read(struct counter_device *counter,
+ struct counter_count *count, u64 *preset)
{
const struct quad8 *const priv = counter->priv;
- return sprintf(buf, "%u\n", priv->preset[count->id]);
+ *preset = priv->preset[count->id];
+
+ return 0;
}
static void quad8_preset_register_set(struct quad8 *const priv, const int id,
@@ -658,16 +622,10 @@ static void quad8_preset_register_set(struct quad8 *const priv, const int id,
outb(preset >> (8 * i), base_offset);
}
-static ssize_t quad8_count_preset_write(struct counter_device *counter,
- struct counter_count *count, void *private, const char *buf, size_t len)
+static int quad8_count_preset_write(struct counter_device *counter,
+ struct counter_count *count, u64 preset)
{
struct quad8 *const priv = counter->priv;
- unsigned int preset;
- int ret;
-
- ret = kstrtouint(buf, 0, &preset);
- if (ret)
- return ret;
/* Only 24-bit values are supported */
if (preset > 0xFFFFFF)
@@ -679,11 +637,11 @@ static ssize_t quad8_count_preset_write(struct counter_device *counter,
mutex_unlock(&priv->lock);
- return len;
+ return 0;
}
-static ssize_t quad8_count_ceiling_read(struct counter_device *counter,
- struct counter_count *count, void *private, char *buf)
+static int quad8_count_ceiling_read(struct counter_device *counter,
+ struct counter_count *count, u64 *ceiling)
{
struct quad8 *const priv = counter->priv;
@@ -693,26 +651,23 @@ static ssize_t quad8_count_ceiling_read(struct counter_device *counter,
switch (priv->count_mode[count->id]) {
case 1:
case 3:
- mutex_unlock(&priv->lock);
- return sprintf(buf, "%u\n", priv->preset[count->id]);
+ *ceiling = priv->preset[count->id];
+ break;
+ default:
+ /* By default 0x1FFFFFF (25 bits unsigned) is maximum count */
+ *ceiling = 0x1FFFFFF;
+ break;
}
mutex_unlock(&priv->lock);
- /* By default 0x1FFFFFF (25 bits unsigned) is maximum count */
- return sprintf(buf, "33554431\n");
+ return 0;
}
-static ssize_t quad8_count_ceiling_write(struct counter_device *counter,
- struct counter_count *count, void *private, const char *buf, size_t len)
+static int quad8_count_ceiling_write(struct counter_device *counter,
+ struct counter_count *count, u64 ceiling)
{
struct quad8 *const priv = counter->priv;
- unsigned int ceiling;
- int ret;
-
- ret = kstrtouint(buf, 0, &ceiling);
- if (ret)
- return ret;
/* Only 24-bit values are supported */
if (ceiling > 0xFFFFFF)
@@ -726,7 +681,7 @@ static ssize_t quad8_count_ceiling_write(struct counter_device *counter,
case 3:
quad8_preset_register_set(priv, count->id, ceiling);
mutex_unlock(&priv->lock);
- return len;
+ return 0;
}
mutex_unlock(&priv->lock);
@@ -734,27 +689,25 @@ static ssize_t quad8_count_ceiling_write(struct counter_device *counter,
return -EINVAL;
}
-static ssize_t quad8_count_preset_enable_read(struct counter_device *counter,
- struct counter_count *count, void *private, char *buf)
+static int quad8_count_preset_enable_read(struct counter_device *counter,
+ struct counter_count *count,
+ u8 *preset_enable)
{
const struct quad8 *const priv = counter->priv;
- return sprintf(buf, "%u\n", !priv->preset_enable[count->id]);
+ *preset_enable = !priv->preset_enable[count->id];
+
+ return 0;
}
-static ssize_t quad8_count_preset_enable_write(struct counter_device *counter,
- struct counter_count *count, void *private, const char *buf, size_t len)
+static int quad8_count_preset_enable_write(struct counter_device *counter,
+ struct counter_count *count,
+ u8 preset_enable)
{
struct quad8 *const priv = counter->priv;
const int base_offset = priv->base + 2 * count->id + 1;
- bool preset_enable;
- int ret;
unsigned int ior_cfg;
- ret = kstrtobool(buf, &preset_enable);
- if (ret)
- return ret;
-
/* Preset enable is active low in Input/Output Control register */
preset_enable = !preset_enable;
@@ -762,25 +715,24 @@ static ssize_t quad8_count_preset_enable_write(struct counter_device *counter,
priv->preset_enable[count->id] = preset_enable;
- ior_cfg = priv->ab_enable[count->id] | (unsigned int)preset_enable << 1;
+ ior_cfg = priv->ab_enable[count->id] | preset_enable << 1;
/* Load I/O control configuration to Input / Output Control Register */
outb(QUAD8_CTR_IOR | ior_cfg, base_offset);
mutex_unlock(&priv->lock);
- return len;
+ return 0;
}
-static ssize_t quad8_signal_cable_fault_read(struct counter_device *counter,
- struct counter_signal *signal,
- void *private, char *buf)
+static int quad8_signal_cable_fault_read(struct counter_device *counter,
+ struct counter_signal *signal,
+ u8 *cable_fault)
{
struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id / 2;
bool disabled;
unsigned int status;
- unsigned int fault;
mutex_lock(&priv->lock);
@@ -797,36 +749,31 @@ static ssize_t quad8_signal_cable_fault_read(struct counter_device *counter,
mutex_unlock(&priv->lock);
/* Mask respective channel and invert logic */
- fault = !(status & BIT(channel_id));
+ *cable_fault = !(status & BIT(channel_id));
- return sprintf(buf, "%u\n", fault);
+ return 0;
}
-static ssize_t quad8_signal_cable_fault_enable_read(
- struct counter_device *counter, struct counter_signal *signal,
- void *private, char *buf)
+static int quad8_signal_cable_fault_enable_read(struct counter_device *counter,
+ struct counter_signal *signal,
+ u8 *enable)
{
const struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id / 2;
- const unsigned int enb = !!(priv->cable_fault_enable & BIT(channel_id));
- return sprintf(buf, "%u\n", enb);
+ *enable = !!(priv->cable_fault_enable & BIT(channel_id));
+
+ return 0;
}
-static ssize_t quad8_signal_cable_fault_enable_write(
- struct counter_device *counter, struct counter_signal *signal,
- void *private, const char *buf, size_t len)
+static int quad8_signal_cable_fault_enable_write(struct counter_device *counter,
+ struct counter_signal *signal,
+ u8 enable)
{
struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id / 2;
- bool enable;
- int ret;
unsigned int cable_fault_enable;
- ret = kstrtobool(buf, &enable);
- if (ret)
- return ret;
-
mutex_lock(&priv->lock);
if (enable)
@@ -841,31 +788,27 @@ static ssize_t quad8_signal_cable_fault_enable_write(
mutex_unlock(&priv->lock);
- return len;
+ return 0;
}
-static ssize_t quad8_signal_fck_prescaler_read(struct counter_device *counter,
- struct counter_signal *signal, void *private, char *buf)
+static int quad8_signal_fck_prescaler_read(struct counter_device *counter,
+ struct counter_signal *signal,
+ u8 *prescaler)
{
const struct quad8 *const priv = counter->priv;
- const size_t channel_id = signal->id / 2;
- return sprintf(buf, "%u\n", priv->fck_prescaler[channel_id]);
+ *prescaler = priv->fck_prescaler[signal->id / 2];
+
+ return 0;
}
-static ssize_t quad8_signal_fck_prescaler_write(struct counter_device *counter,
- struct counter_signal *signal, void *private, const char *buf,
- size_t len)
+static int quad8_signal_fck_prescaler_write(struct counter_device *counter,
+ struct counter_signal *signal,
+ u8 prescaler)
{
struct quad8 *const priv = counter->priv;
const size_t channel_id = signal->id / 2;
const int base_offset = priv->base + 2 * channel_id;
- u8 prescaler;
- int ret;
-
- ret = kstrtou8(buf, 0, &prescaler);
- if (ret)
- return ret;
mutex_lock(&priv->lock);
@@ -881,31 +824,30 @@ static ssize_t quad8_signal_fck_prescaler_write(struct counter_device *counter,
mutex_unlock(&priv->lock);
- return len;
+ return 0;
}
-static const struct counter_signal_ext quad8_signal_ext[] = {
- {
- .name = "cable_fault",
- .read = quad8_signal_cable_fault_read
- },
- {
- .name = "cable_fault_enable",
- .read = quad8_signal_cable_fault_enable_read,
- .write = quad8_signal_cable_fault_enable_write
- },
- {
- .name = "filter_clock_prescaler",
- .read = quad8_signal_fck_prescaler_read,
- .write = quad8_signal_fck_prescaler_write
- }
+static struct counter_comp quad8_signal_ext[] = {
+ COUNTER_COMP_SIGNAL_BOOL("cable_fault", quad8_signal_cable_fault_read,
+ NULL),
+ COUNTER_COMP_SIGNAL_BOOL("cable_fault_enable",
+ quad8_signal_cable_fault_enable_read,
+ quad8_signal_cable_fault_enable_write),
+ COUNTER_COMP_SIGNAL_U8("filter_clock_prescaler",
+ quad8_signal_fck_prescaler_read,
+ quad8_signal_fck_prescaler_write)
};
-static const struct counter_signal_ext quad8_index_ext[] = {
- COUNTER_SIGNAL_ENUM("index_polarity", &quad8_index_pol_enum),
- COUNTER_SIGNAL_ENUM_AVAILABLE("index_polarity", &quad8_index_pol_enum),
- COUNTER_SIGNAL_ENUM("synchronous_mode", &quad8_syn_mode_enum),
- COUNTER_SIGNAL_ENUM_AVAILABLE("synchronous_mode", &quad8_syn_mode_enum)
+static DEFINE_COUNTER_ENUM(quad8_index_pol_enum, quad8_index_polarity_modes);
+static DEFINE_COUNTER_ENUM(quad8_synch_mode_enum, quad8_synchronous_modes);
+
+static struct counter_comp quad8_index_ext[] = {
+ COUNTER_COMP_SIGNAL_ENUM("index_polarity", quad8_index_polarity_get,
+ quad8_index_polarity_set,
+ quad8_index_pol_enum),
+ COUNTER_COMP_SIGNAL_ENUM("synchronous_mode", quad8_synchronous_mode_get,
+ quad8_synchronous_mode_set,
+ quad8_synch_mode_enum),
};
#define QUAD8_QUAD_SIGNAL(_id, _name) { \
@@ -974,39 +916,30 @@ static struct counter_synapse quad8_count_synapses[][3] = {
QUAD8_COUNT_SYNAPSES(6), QUAD8_COUNT_SYNAPSES(7)
};
-static const struct counter_count_ext quad8_count_ext[] = {
- {
- .name = "ceiling",
- .read = quad8_count_ceiling_read,
- .write = quad8_count_ceiling_write
- },
- {
- .name = "floor",
- .read = quad8_count_floor_read
- },
- COUNTER_COUNT_ENUM("count_mode", &quad8_cnt_mode_enum),
- COUNTER_COUNT_ENUM_AVAILABLE("count_mode", &quad8_cnt_mode_enum),
- {
- .name = "direction",
- .read = quad8_count_direction_read
- },
- {
- .name = "enable",
- .read = quad8_count_enable_read,
- .write = quad8_count_enable_write
- },
- COUNTER_COUNT_ENUM("error_noise", &quad8_error_noise_enum),
- COUNTER_COUNT_ENUM_AVAILABLE("error_noise", &quad8_error_noise_enum),
- {
- .name = "preset",
- .read = quad8_count_preset_read,
- .write = quad8_count_preset_write
- },
- {
- .name = "preset_enable",
- .read = quad8_count_preset_enable_read,
- .write = quad8_count_preset_enable_write
- }
+static const enum counter_count_mode quad8_cnt_modes[] = {
+ COUNTER_COUNT_MODE_NORMAL,
+ COUNTER_COUNT_MODE_RANGE_LIMIT,
+ COUNTER_COUNT_MODE_NON_RECYCLE,
+ COUNTER_COUNT_MODE_MODULO_N,
+};
+
+static DEFINE_COUNTER_AVAILABLE(quad8_count_mode_available, quad8_cnt_modes);
+
+static DEFINE_COUNTER_ENUM(quad8_error_noise_enum, quad8_noise_error_states);
+
+static struct counter_comp quad8_count_ext[] = {
+ COUNTER_COMP_CEILING(quad8_count_ceiling_read,
+ quad8_count_ceiling_write),
+ COUNTER_COMP_FLOOR(quad8_count_floor_read, NULL),
+ COUNTER_COMP_COUNT_MODE(quad8_count_mode_read, quad8_count_mode_write,
+ quad8_count_mode_available),
+ COUNTER_COMP_DIRECTION(quad8_direction_read),
+ COUNTER_COMP_ENABLE(quad8_count_enable_read, quad8_count_enable_write),
+ COUNTER_COMP_COUNT_ENUM("error_noise", quad8_error_noise_get, NULL,
+ quad8_error_noise_enum),
+ COUNTER_COMP_PRESET(quad8_count_preset_read, quad8_count_preset_write),
+ COUNTER_COMP_PRESET_ENABLE(quad8_count_preset_enable_read,
+ quad8_count_preset_enable_write),
};
#define QUAD8_COUNT(_id, _cntname) { \
diff --git a/drivers/counter/Makefile b/drivers/counter/Makefile
index 19742e6f5e3e..1ab7e087fdc2 100644
--- a/drivers/counter/Makefile
+++ b/drivers/counter/Makefile
@@ -4,6 +4,7 @@
#
obj-$(CONFIG_COUNTER) += counter.o
+counter-y := counter-core.o counter-sysfs.o
obj-$(CONFIG_104_QUAD_8) += 104-quad-8.o
obj-$(CONFIG_INTERRUPT_CNT) += interrupt-cnt.o
diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c
new file mode 100644
index 000000000000..c533a6ff12cf
--- /dev/null
+++ b/drivers/counter/counter-core.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Generic Counter interface
+ * Copyright (C) 2020 William Breathitt Gray
+ */
+#include <linux/counter.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/gfp.h>
+#include <linux/idr.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include "counter-sysfs.h"
+
+/* Provides a unique ID for each counter device */
+static DEFINE_IDA(counter_ida);
+
+static void counter_device_release(struct device *dev)
+{
+ ida_free(&counter_ida, dev->id);
+}
+
+static struct device_type counter_device_type = {
+ .name = "counter_device",
+ .release = counter_device_release,
+};
+
+static struct bus_type counter_bus_type = {
+ .name = "counter",
+ .dev_name = "counter",
+};
+
+/**
+ * counter_register - register Counter to the system
+ * @counter: pointer to Counter to register
+ *
+ * This function registers a Counter to the system. A sysfs "counter" directory
+ * will be created and populated with sysfs attributes correlating with the
+ * Counter Signals, Synapses, and Counts respectively.
+ */
+int counter_register(struct counter_device *const counter)
+{
+ struct device *const dev = &counter->dev;
+ int id;
+ int err;
+
+ /* Acquire unique ID */
+ id = ida_alloc(&counter_ida, GFP_KERNEL);
+ if (id < 0)
+ return id;
+
+ /* Configure device structure for Counter */
+ dev->id = id;
+ dev->type = &counter_device_type;
+ dev->bus = &counter_bus_type;
+ if (counter->parent) {
+ dev->parent = counter->parent;
+ dev->of_node = counter->parent->of_node;
+ }
+ device_initialize(dev);
+ dev_set_drvdata(dev, counter);
+
+ /* Add Counter sysfs attributes */
+ err = counter_sysfs_add(counter);
+ if (err < 0)
+ goto err_free_id;
+
+ /* Add device to system */
+ err = device_add(dev);
+ if (err < 0)
+ goto err_free_id;
+
+ return 0;
+
+err_free_id:
+ put_device(dev);
+ return err;
+}
+EXPORT_SYMBOL_GPL(counter_register);
+
+/**
+ * counter_unregister - unregister Counter from the system
+ * @counter: pointer to Counter to unregister
+ *
+ * The Counter is unregistered from the system.
+ */
+void counter_unregister(struct counter_device *const counter)
+{
+ if (!counter)
+ return;
+
+ device_unregister(&counter->dev);
+}
+EXPORT_SYMBOL_GPL(counter_unregister);
+
+static void devm_counter_release(void *counter)
+{
+ counter_unregister(counter);
+}
+
+/**
+ * devm_counter_register - Resource-managed counter_register
+ * @dev: device to allocate counter_device for
+ * @counter: pointer to Counter to register
+ *
+ * Managed counter_register. The Counter registered with this function is
+ * automatically unregistered on driver detach. This function calls
+ * counter_register internally. Refer to that function for more information.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+int devm_counter_register(struct device *dev,
+ struct counter_device *const counter)
+{
+ int err;
+
+ err = counter_register(counter);
+ if (err < 0)
+ return err;
+
+ return devm_add_action_or_reset(dev, devm_counter_release, counter);
+}
+EXPORT_SYMBOL_GPL(devm_counter_register);
+
+static int __init counter_init(void)
+{
+ return bus_register(&counter_bus_type);
+}
+
+static void __exit counter_exit(void)
+{
+ bus_unregister(&counter_bus_type);
+}
+
+subsys_initcall(counter_init);
+module_exit(counter_exit);
+
+MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@xxxxxxxxx>");
+MODULE_DESCRIPTION("Generic Counter interface");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/counter/counter-sysfs.c b/drivers/counter/counter-sysfs.c
new file mode 100644
index 000000000000..108cbd838eb9
--- /dev/null
+++ b/drivers/counter/counter-sysfs.c
@@ -0,0 +1,849 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Generic Counter sysfs interface
+ * Copyright (C) 2020 William Breathitt Gray
+ */
+#include <linux/counter.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/kstrtox.h>
+#include <linux/list.h>
+#include <linux/string.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+
+#include "counter-sysfs.h"
+
+/**
+ * struct counter_attribute - Counter sysfs attribute
+ * @dev_attr: device attribute for sysfs
+ * @l: node to add Counter attribute to attribute group list
+ * @comp: Counter component callbacks and data
+ * @scope: Counter scope of the attribute
+ * @parent: pointer to the parent component
+ */
+struct counter_attribute {
+ struct device_attribute dev_attr;
+ struct list_head l;
+
+ struct counter_comp comp;
+ enum counter_scope scope;
+ void *parent;
+};
+
+#define to_counter_attribute(_dev_attr) \
+ container_of(_dev_attr, struct counter_attribute, dev_attr)
+
+/**
+ * struct counter_attribute_group - container for attribute group
+ * @name: name of the attribute group
+ * @attr_list: list to keep track of created attributes
+ * @num_attr: number of attributes
+ */
+struct counter_attribute_group {
+ const char *name;
+ struct list_head attr_list;
+ size_t num_attr;
+};
+
+static const char *const counter_function_str[] = {
+ [COUNTER_FUNCTION_INCREASE] = "increase",
+ [COUNTER_FUNCTION_DECREASE] = "decrease",
+ [COUNTER_FUNCTION_PULSE_DIRECTION] = "pulse-direction",
+ [COUNTER_FUNCTION_QUADRATURE_X1_A] = "quadrature x1 a",
+ [COUNTER_FUNCTION_QUADRATURE_X1_B] = "quadrature x1 b",
+ [COUNTER_FUNCTION_QUADRATURE_X2_A] = "quadrature x2 a",
+ [COUNTER_FUNCTION_QUADRATURE_X2_B] = "quadrature x2 b",
+ [COUNTER_FUNCTION_QUADRATURE_X4] = "quadrature x4"
+};
+
+static const char *const counter_signal_value_str[] = {
+ [COUNTER_SIGNAL_LEVEL_LOW] = "low",
+ [COUNTER_SIGNAL_LEVEL_HIGH] = "high"
+};
+
+static const char *const counter_synapse_action_str[] = {
+ [COUNTER_SYNAPSE_ACTION_NONE] = "none",
+ [COUNTER_SYNAPSE_ACTION_RISING_EDGE] = "rising edge",
+ [COUNTER_SYNAPSE_ACTION_FALLING_EDGE] = "falling edge",
+ [COUNTER_SYNAPSE_ACTION_BOTH_EDGES] = "both edges"
+};
+
+static const char *const counter_count_direction_str[] = {
+ [COUNTER_COUNT_DIRECTION_FORWARD] = "forward",
+ [COUNTER_COUNT_DIRECTION_BACKWARD] = "backward"
+};
+
+static const char *const counter_count_mode_str[] = {
+ [COUNTER_COUNT_MODE_NORMAL] = "normal",
+ [COUNTER_COUNT_MODE_RANGE_LIMIT] = "range limit",
+ [COUNTER_COUNT_MODE_NON_RECYCLE] = "non-recycle",
+ [COUNTER_COUNT_MODE_MODULO_N] = "modulo-n"
+};
+
+static ssize_t counter_comp_u8_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ struct counter_device *const counter = dev_get_drvdata(dev);
+ int err;
+ u8 data = 0;
+
+ switch (a->scope) {
+ case COUNTER_SCOPE_DEVICE:
+ err = a->comp.device_u8_read(counter, &data);
+ break;
+ case COUNTER_SCOPE_SIGNAL:
+ err = a->comp.signal_u8_read(counter, a->parent, &data);
+ break;
+ case COUNTER_SCOPE_COUNT:
+ err = a->comp.count_u8_read(counter, a->parent, &data);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ if (a->comp.type == COUNTER_COMP_BOOL)
+ /* data should already be boolean but ensure just to be safe */
+ data = !!data;
+
+ return sprintf(buf, "%u\n", (unsigned int)data);
+}
+
+static ssize_t counter_comp_u8_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ struct counter_device *const counter = dev_get_drvdata(dev);
+ int err;
+ bool bool_data = 0;
+ u8 data = 0;
+
+ if (a->comp.type == COUNTER_COMP_BOOL) {
+ err = kstrtobool(buf, &bool_data);
+ data = bool_data;
+ } else
+ err = kstrtou8(buf, 0, &data);
+ if (err < 0)
+ return err;
+
+ switch (a->scope) {
+ case COUNTER_SCOPE_DEVICE:
+ err = a->comp.device_u8_write(counter, data);
+ break;
+ case COUNTER_SCOPE_SIGNAL:
+ err = a->comp.signal_u8_write(counter, a->parent, data);
+ break;
+ case COUNTER_SCOPE_COUNT:
+ err = a->comp.count_u8_write(counter, a->parent, data);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ return len;
+}
+
+static ssize_t counter_comp_u32_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ struct counter_device *const counter = dev_get_drvdata(dev);
+ const struct counter_available *const avail = a->comp.priv;
+ int err;
+ u32 data = 0;
+
+ switch (a->scope) {
+ case COUNTER_SCOPE_DEVICE:
+ err = a->comp.device_u32_read(counter, &data);
+ break;
+ case COUNTER_SCOPE_SIGNAL:
+ err = a->comp.signal_u32_read(counter, a->parent, &data);
+ break;
+ case COUNTER_SCOPE_COUNT:
+ if (a->comp.type == COUNTER_COMP_SYNAPSE_ACTION)
+ err = a->comp.action_read(counter, a->parent,
+ a->comp.priv, &data);
+ else
+ err = a->comp.count_u32_read(counter, a->parent, &data);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ switch (a->comp.type) {
+ case COUNTER_COMP_FUNCTION:
+ return sysfs_emit(buf, "%s\n", counter_function_str[data]);
+ case COUNTER_COMP_SIGNAL_LEVEL:
+ return sysfs_emit(buf, "%s\n", counter_signal_value_str[data]);
+ case COUNTER_COMP_SYNAPSE_ACTION:
+ return sysfs_emit(buf, "%s\n", counter_synapse_action_str[data]);
+ case COUNTER_COMP_ENUM:
+ return sysfs_emit(buf, "%s\n", avail->strs[data]);
+ case COUNTER_COMP_COUNT_DIRECTION:
+ return sysfs_emit(buf, "%s\n", counter_count_direction_str[data]);
+ case COUNTER_COMP_COUNT_MODE:
+ return sysfs_emit(buf, "%s\n", counter_count_mode_str[data]);
+ default:
+ return sprintf(buf, "%u\n", (unsigned int)data);
+ }
+}
+
+static int counter_find_enum(u32 *const enum_item, const u32 *const enums,
+ const size_t num_enums, const char *const buf,
+ const char *const string_array[])
+{
+ size_t index;
+
+ for (index = 0; index < num_enums; index++) {
+ *enum_item = enums[index];
+ if (sysfs_streq(buf, string_array[*enum_item]))
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static ssize_t counter_comp_u32_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ struct counter_device *const counter = dev_get_drvdata(dev);
+ struct counter_count *const count = a->parent;
+ struct counter_synapse *const synapse = a->comp.priv;
+ const struct counter_available *const avail = a->comp.priv;
+ int err;
+ u32 data = 0;
+
+ switch (a->comp.type) {
+ case COUNTER_COMP_FUNCTION:
+ err = counter_find_enum(&data, count->functions_list,
+ count->num_functions, buf,
+ counter_function_str);
+ break;
+ case COUNTER_COMP_SYNAPSE_ACTION:
+ err = counter_find_enum(&data, synapse->actions_list,
+ synapse->num_actions, buf,
+ counter_synapse_action_str);
+ break;
+ case COUNTER_COMP_ENUM:
+ err = __sysfs_match_string(avail->strs, avail->num_items, buf);
+ data = err;
+ break;
+ case COUNTER_COMP_COUNT_MODE:
+ err = counter_find_enum(&data, avail->enums, avail->num_items,
+ buf, counter_count_mode_str);
+ break;
+ default:
+ err = kstrtou32(buf, 0, &data);
+ break;
+ }
+ if (err < 0)
+ return err;
+
+ switch (a->scope) {
+ case COUNTER_SCOPE_DEVICE:
+ err = a->comp.device_u32_write(counter, data);
+ break;
+ case COUNTER_SCOPE_SIGNAL:
+ err = a->comp.signal_u32_write(counter, a->parent, data);
+ break;
+ case COUNTER_SCOPE_COUNT:
+ if (a->comp.type == COUNTER_COMP_SYNAPSE_ACTION)
+ err = a->comp.action_write(counter, count, synapse,
+ data);
+ else
+ err = a->comp.count_u32_write(counter, count, data);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ return len;
+}
+
+static ssize_t counter_comp_u64_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ struct counter_device *const counter = dev_get_drvdata(dev);
+ int err;
+ u64 data = 0;
+
+ switch (a->scope) {
+ case COUNTER_SCOPE_DEVICE:
+ err = a->comp.device_u64_read(counter, &data);
+ break;
+ case COUNTER_SCOPE_SIGNAL:
+ err = a->comp.signal_u64_read(counter, a->parent, &data);
+ break;
+ case COUNTER_SCOPE_COUNT:
+ err = a->comp.count_u64_read(counter, a->parent, &data);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ return sprintf(buf, "%llu\n", (unsigned long long)data);
+}
+
+static ssize_t counter_comp_u64_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ struct counter_device *const counter = dev_get_drvdata(dev);
+ int err;
+ u64 data = 0;
+
+ err = kstrtou64(buf, 0, &data);
+ if (err < 0)
+ return err;
+
+ switch (a->scope) {
+ case COUNTER_SCOPE_DEVICE:
+ err = a->comp.device_u64_write(counter, data);
+ break;
+ case COUNTER_SCOPE_SIGNAL:
+ err = a->comp.signal_u64_write(counter, a->parent, data);
+ break;
+ case COUNTER_SCOPE_COUNT:
+ err = a->comp.count_u64_write(counter, a->parent, data);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ return len;
+}
+
+static ssize_t enums_available_show(const u32 *const enums,
+ const size_t num_enums,
+ const char *const strs[], char *buf)
+{
+ size_t len = 0;
+ size_t index;
+
+ for (index = 0; index < num_enums; index++)
+ len += sysfs_emit_at(buf, len, "%s\n", strs[enums[index]]);
+
+ return len;
+}
+
+static ssize_t strs_available_show(const struct counter_available *const avail,
+ char *buf)
+{
+ size_t len = 0;
+ size_t index;
+
+ for (index = 0; index < avail->num_items; index++)
+ len += sysfs_emit_at(buf, len, "%s\n", avail->strs[index]);
+
+ return len;
+}
+
+static ssize_t counter_comp_available_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ const struct counter_attribute *const a = to_counter_attribute(attr);
+ const struct counter_count *const count = a->parent;
+ const struct counter_synapse *const synapse = a->comp.priv;
+ const struct counter_available *const avail = a->comp.priv;
+
+ switch (a->comp.type) {
+ case COUNTER_COMP_FUNCTION:
+ return enums_available_show(count->functions_list,
+ count->num_functions,
+ counter_function_str, buf);
+ case COUNTER_COMP_SYNAPSE_ACTION:
+ return enums_available_show(synapse->actions_list,
+ synapse->num_actions,
+ counter_synapse_action_str, buf);
+ case COUNTER_COMP_ENUM:
+ return strs_available_show(avail, buf);
+ case COUNTER_COMP_COUNT_MODE:
+ return enums_available_show(avail->enums, avail->num_items,
+ counter_count_mode_str, buf);
+ default:
+ return -EINVAL;
+ }
+}
+
+static int counter_avail_attr_create(struct device *const dev,
+ struct counter_attribute_group *const group,
+ const struct counter_comp *const comp, void *const parent)
+{
+ struct counter_attribute *counter_attr;
+ struct device_attribute *dev_attr;
+
+ counter_attr = devm_kzalloc(dev, sizeof(*counter_attr), GFP_KERNEL);
+ if (!counter_attr)
+ return -ENOMEM;
+
+ /* Configure Counter attribute */
+ counter_attr->comp.type = comp->type;
+ counter_attr->comp.priv = comp->priv;
+ counter_attr->parent = parent;
+
+ /* Initialize sysfs attribute */
+ dev_attr = &counter_attr->dev_attr;
+ sysfs_attr_init(&dev_attr->attr);
+
+ /* Configure device attribute */
+ dev_attr->attr.name = devm_kasprintf(dev, GFP_KERNEL, "%s_available",
+ comp->name);
+ if (!dev_attr->attr.name)
+ return -ENOMEM;
+ dev_attr->attr.mode = 0444;
+ dev_attr->show = counter_comp_available_show;
+
+ /* Store list node */
+ list_add(&counter_attr->l, &group->attr_list);
+ group->num_attr++;
+
+ return 0;
+}
+
+static int counter_attr_create(struct device *const dev,
+ struct counter_attribute_group *const group,
+ const struct counter_comp *const comp,
+ const enum counter_scope scope,
+ void *const parent)
+{
+ struct counter_attribute *counter_attr;
+ struct device_attribute *dev_attr;
+
+ counter_attr = devm_kzalloc(dev, sizeof(*counter_attr), GFP_KERNEL);
+ if (!counter_attr)
+ return -ENOMEM;
+
+ /* Configure Counter attribute */
+ counter_attr->comp = *comp;
+ counter_attr->scope = scope;
+ counter_attr->parent = parent;
+
+ /* Configure device attribute */
+ dev_attr = &counter_attr->dev_attr;
+ sysfs_attr_init(&dev_attr->attr);
+ dev_attr->attr.name = comp->name;
+ switch (comp->type) {
+ case COUNTER_COMP_U8:
+ case COUNTER_COMP_BOOL:
+ if (comp->device_u8_read) {
+ dev_attr->attr.mode |= 0444;
+ dev_attr->show = counter_comp_u8_show;
+ }
+ if (comp->device_u8_write) {
+ dev_attr->attr.mode |= 0200;
+ dev_attr->store = counter_comp_u8_store;
+ }
+ break;
+ case COUNTER_COMP_SIGNAL_LEVEL:
+ case COUNTER_COMP_FUNCTION:
+ case COUNTER_COMP_SYNAPSE_ACTION:
+ case COUNTER_COMP_ENUM:
+ case COUNTER_COMP_COUNT_DIRECTION:
+ case COUNTER_COMP_COUNT_MODE:
+ if (comp->device_u32_read) {
+ dev_attr->attr.mode |= 0444;
+ dev_attr->show = counter_comp_u32_show;
+ }
+ if (comp->device_u32_write) {
+ dev_attr->attr.mode |= 0200;
+ dev_attr->store = counter_comp_u32_store;
+ }
+ break;
+ case COUNTER_COMP_U64:
+ if (comp->device_u64_read) {
+ dev_attr->attr.mode |= 0444;
+ dev_attr->show = counter_comp_u64_show;
+ }
+ if (comp->device_u64_write) {
+ dev_attr->attr.mode |= 0200;
+ dev_attr->store = counter_comp_u64_store;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Store list node */
+ list_add(&counter_attr->l, &group->attr_list);
+ group->num_attr++;
+
+ /* Create "*_available" attribute if needed */
+ switch (comp->type) {
+ case COUNTER_COMP_FUNCTION:
+ case COUNTER_COMP_SYNAPSE_ACTION:
+ case COUNTER_COMP_ENUM:
+ case COUNTER_COMP_COUNT_MODE:
+ return counter_avail_attr_create(dev, group, comp, parent);
+ default:
+ return 0;
+ }
+}
+
+static ssize_t counter_comp_name_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sysfs_emit(buf, "%s\n", to_counter_attribute(attr)->comp.name);
+}
+
+static int counter_name_attr_create(struct device *const dev,
+ struct counter_attribute_group *const group,
+ const char *const name)
+{
+ struct counter_attribute *counter_attr;
+
+ counter_attr = devm_kzalloc(dev, sizeof(*counter_attr), GFP_KERNEL);
+ if (!counter_attr)
+ return -ENOMEM;
+
+ /* Configure Counter attribute */
+ counter_attr->comp.name = name;
+
+ /* Configure device attribute */
+ sysfs_attr_init(&counter_attr->dev_attr.attr);
+ counter_attr->dev_attr.attr.name = "name";
+ counter_attr->dev_attr.attr.mode = 0444;
+ counter_attr->dev_attr.show = counter_comp_name_show;
+
+ /* Store list node */
+ list_add(&counter_attr->l, &group->attr_list);
+ group->num_attr++;
+
+ return 0;
+}
+
+static struct counter_comp counter_signal_comp = {
+ .type = COUNTER_COMP_SIGNAL_LEVEL,
+ .name = "signal",
+};
+
+static int counter_signal_attrs_create(struct counter_device *const counter,
+ struct counter_attribute_group *const cattr_group,
+ struct counter_signal *const signal)
+{
+ const enum counter_scope scope = COUNTER_SCOPE_SIGNAL;
+ struct device *const dev = &counter->dev;
+ int err;
+ struct counter_comp comp;
+ size_t i;
+
+ /* Create main Signal attribute */
+ comp = counter_signal_comp;
+ comp.signal_u32_read = counter->ops->signal_read;
+ err = counter_attr_create(dev, cattr_group, &comp, scope, signal);
+ if (err < 0)
+ return err;
+
+ /* Create Signal name attribute */
+ err = counter_name_attr_create(dev, cattr_group, signal->name);
+ if (err < 0)
+ return err;
+
+ /* Create an attribute for each extension */
+ for (i = 0; i < signal->num_ext; i++) {
+ err = counter_attr_create(dev, cattr_group, signal->ext + i,
+ scope, signal);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int counter_sysfs_signals_add(struct counter_device *const counter,
+ struct counter_attribute_group *const groups)
+{
+ size_t i;
+ int err;
+
+ /* Add each Signal */
+ for (i = 0; i < counter->num_signals; i++) {
+ /* Generate Signal attribute directory name */
+ groups[i].name = devm_kasprintf(&counter->dev, GFP_KERNEL,
+ "signal%zu", i);
+ if (!groups[i].name)
+ return -ENOMEM;
+
+ /* Create all attributes associated with Signal */
+ err = counter_signal_attrs_create(counter, groups + i,
+ counter->signals + i);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int counter_sysfs_synapses_add(struct counter_device *const counter,
+ struct counter_attribute_group *const group,
+ struct counter_count *const count)
+{
+ size_t i;
+
+ /* Add each Synapse */
+ for (i = 0; i < count->num_synapses; i++) {
+ struct device *const dev = &counter->dev;
+ struct counter_synapse *synapse;
+ size_t id;
+ struct counter_comp comp;
+ int err;
+
+ synapse = count->synapses + i;
+
+ /* Generate Synapse action name */
+ id = synapse->signal - counter->signals;
+ comp.name = devm_kasprintf(dev, GFP_KERNEL, "signal%zu_action",
+ id);
+ if (!comp.name)
+ return -ENOMEM;
+
+ /* Create action attribute */
+ comp.type = COUNTER_COMP_SYNAPSE_ACTION;
+ comp.action_read = counter->ops->action_read;
+ comp.action_write = counter->ops->action_write;
+ comp.priv = synapse;
+ err = counter_attr_create(dev, group, &comp,
+ COUNTER_SCOPE_COUNT, count);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static struct counter_comp counter_count_comp =
+ COUNTER_COMP_COUNT_U64("count", NULL, NULL);
+
+static struct counter_comp counter_function_comp = {
+ .type = COUNTER_COMP_FUNCTION,
+ .name = "function",
+};
+
+static int counter_count_attrs_create(struct counter_device *const counter,
+ struct counter_attribute_group *const cattr_group,
+ struct counter_count *const count)
+{
+ const enum counter_scope scope = COUNTER_SCOPE_COUNT;
+ struct device *const dev = &counter->dev;
+ int err;
+ struct counter_comp comp;
+ size_t i;
+
+ /* Create main Count attribute */
+ comp = counter_count_comp;
+ comp.count_u64_read = counter->ops->count_read;
+ comp.count_u64_write = counter->ops->count_write;
+ err = counter_attr_create(dev, cattr_group, &comp, scope, count);
+ if (err < 0)
+ return err;
+
+ /* Create Count name attribute */
+ err = counter_name_attr_create(dev, cattr_group, count->name);
+ if (err < 0)
+ return err;
+
+ /* Create Count function attribute */
+ comp = counter_function_comp;
+ comp.count_u32_read = counter->ops->function_read;
+ comp.count_u32_write = counter->ops->function_write;
+ err = counter_attr_create(dev, cattr_group, &comp, scope, count);
+ if (err < 0)
+ return err;
+
+ /* Create an attribute for each extension */
+ for (i = 0; i < count->num_ext; i++) {
+ err = counter_attr_create(dev, cattr_group, count->ext + i,
+ scope, count);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int counter_sysfs_counts_add(struct counter_device *const counter,
+ struct counter_attribute_group *const groups)
+{
+ size_t i;
+ struct counter_count *count;
+ int err;
+
+ /* Add each Count */
+ for (i = 0; i < counter->num_counts; i++) {
+ count = counter->counts + i;
+
+ /* Generate Count attribute directory name */
+ groups[i].name = devm_kasprintf(&counter->dev, GFP_KERNEL,
+ "count%zu", i);
+ if (!groups[i].name)
+ return -ENOMEM;
+
+ /* Add sysfs attributes of the Synapses */
+ err = counter_sysfs_synapses_add(counter, groups + i, count);
+ if (err < 0)
+ return err;
+
+ /* Create all attributes associated with Count */
+ err = counter_count_attrs_create(counter, groups + i, count);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int counter_num_signals_read(struct counter_device *counter, u8 *val)
+{
+ *val = counter->num_signals;
+ return 0;
+}
+
+static int counter_num_counts_read(struct counter_device *counter, u8 *val)
+{
+ *val = counter->num_counts;
+ return 0;
+}
+
+static struct counter_comp counter_num_signals_comp =
+ COUNTER_COMP_DEVICE_U8("num_signals", counter_num_signals_read, NULL);
+
+static struct counter_comp counter_num_counts_comp =
+ COUNTER_COMP_DEVICE_U8("num_counts", counter_num_counts_read, NULL);
+
+static int counter_sysfs_attr_add(struct counter_device *const counter,
+ struct counter_attribute_group *cattr_group)
+{
+ const enum counter_scope scope = COUNTER_SCOPE_DEVICE;
+ struct device *const dev = &counter->dev;
+ int err;
+ size_t i;
+
+ /* Add Signals sysfs attributes */
+ err = counter_sysfs_signals_add(counter, cattr_group);
+ if (err < 0)
+ return err;
+ cattr_group += counter->num_signals;
+
+ /* Add Counts sysfs attributes */
+ err = counter_sysfs_counts_add(counter, cattr_group);
+ if (err < 0)
+ return err;
+ cattr_group += counter->num_counts;
+
+ /* Create name attribute */
+ err = counter_name_attr_create(dev, cattr_group, counter->name);
+ if (err < 0)
+ return err;
+
+ /* Create num_signals attribute */
+ err = counter_attr_create(dev, cattr_group, &counter_num_signals_comp,
+ scope, NULL);
+ if (err < 0)
+ return err;
+
+ /* Create num_counts attribute */
+ err = counter_attr_create(dev, cattr_group, &counter_num_counts_comp,
+ scope, NULL);
+ if (err < 0)
+ return err;
+
+ /* Create an attribute for each extension */
+ for (i = 0; i < counter->num_ext; i++) {
+ err = counter_attr_create(dev, cattr_group, counter->ext + i,
+ scope, NULL);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+/**
+ * counter_sysfs_add - Adds Counter sysfs attributes to the device structure
+ * @counter: Pointer to the Counter device structure
+ *
+ * Counter sysfs attributes are created and added to the respective device
+ * structure for later registration to the system. Resource-managed memory
+ * allocation is performed by this function, and this memory should be freed
+ * when no longer needed (automatically by a device_unregister call, or
+ * manually by a devres_release_all call).
+ */
+int counter_sysfs_add(struct counter_device *const counter)
+{
+ struct device *const dev = &counter->dev;
+ const size_t num_groups = counter->num_signals + counter->num_counts + 1;
+ struct counter_attribute_group *cattr_groups;
+ size_t i, j;
+ int err;
+ struct attribute_group *groups;
+ struct counter_attribute *p;
+
+ /* Allocate space for attribute groups (signals, counts, and ext) */
+ cattr_groups = devm_kcalloc(dev, num_groups, sizeof(*cattr_groups),
+ GFP_KERNEL);
+ if (!cattr_groups)
+ return -ENOMEM;
+
+ /* Initialize attribute lists */
+ for (i = 0; i < num_groups; i++)
+ INIT_LIST_HEAD(&cattr_groups[i].attr_list);
+
+ /* Add Counter device sysfs attributes */
+ err = counter_sysfs_attr_add(counter, cattr_groups);
+ if (err < 0)
+ return err;
+
+ /* Allocate attribute group pointers for association with device */
+ dev->groups = devm_kcalloc(dev, num_groups + 1, sizeof(*dev->groups),
+ GFP_KERNEL);
+ if (!dev->groups)
+ return -ENOMEM;
+
+ /* Allocate space for attribute groups */
+ groups = devm_kcalloc(dev, num_groups, sizeof(*groups), GFP_KERNEL);
+ if (!groups)
+ return -ENOMEM;
+
+ /* Prepare each group of attributes for association */
+ for (i = 0; i < num_groups; i++) {
+ groups[i].name = cattr_groups[i].name;
+
+ /* Allocate space for attribute pointers */
+ groups[i].attrs = devm_kcalloc(dev,
+ cattr_groups[i].num_attr + 1,
+ sizeof(*groups[i].attrs),
+ GFP_KERNEL);
+ if (!groups[i].attrs)
+ return -ENOMEM;
+
+ /* Add attribute pointers to attribute group */
+ j = 0;
+ list_for_each_entry(p, &cattr_groups[i].attr_list, l)
+ groups[i].attrs[j++] = &p->dev_attr.attr;
+
+ /* Associate attribute group */
+ dev->groups[i] = &groups[i];
+ }
+
+ return 0;
+}
diff --git a/drivers/counter/counter-sysfs.h b/drivers/counter/counter-sysfs.h
new file mode 100644
index 000000000000..14fe566aca0e
--- /dev/null
+++ b/drivers/counter/counter-sysfs.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Counter sysfs interface
+ * Copyright (C) 2020 William Breathitt Gray
+ */
+#ifndef _COUNTER_SYSFS_H_
+#define _COUNTER_SYSFS_H_
+
+#include <linux/counter.h>
+
+int counter_sysfs_add(struct counter_device *const counter);
+
+#endif /* _COUNTER_SYSFS_H_ */
diff --git a/drivers/counter/counter.c b/drivers/counter/counter.c
deleted file mode 100644
index de921e8a3f72..000000000000
--- a/drivers/counter/counter.c
+++ /dev/null
@@ -1,1496 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Generic Counter interface
- * Copyright (C) 2018 William Breathitt Gray
- */
-#include <linux/counter.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/export.h>
-#include <linux/fs.h>
-#include <linux/gfp.h>
-#include <linux/idr.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/printk.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/sysfs.h>
-#include <linux/types.h>
-
-const char *const counter_count_direction_str[2] = {
- [COUNTER_COUNT_DIRECTION_FORWARD] = "forward",
- [COUNTER_COUNT_DIRECTION_BACKWARD] = "backward"
-};
-EXPORT_SYMBOL_GPL(counter_count_direction_str);
-
-const char *const counter_count_mode_str[4] = {
- [COUNTER_COUNT_MODE_NORMAL] = "normal",
- [COUNTER_COUNT_MODE_RANGE_LIMIT] = "range limit",
- [COUNTER_COUNT_MODE_NON_RECYCLE] = "non-recycle",
- [COUNTER_COUNT_MODE_MODULO_N] = "modulo-n"
-};
-EXPORT_SYMBOL_GPL(counter_count_mode_str);
-
-ssize_t counter_signal_enum_read(struct counter_device *counter,
- struct counter_signal *signal, void *priv,
- char *buf)
-{
- const struct counter_signal_enum_ext *const e = priv;
- int err;
- size_t index;
-
- if (!e->get)
- return -EINVAL;
-
- err = e->get(counter, signal, &index);
- if (err)
- return err;
-
- if (index >= e->num_items)
- return -EINVAL;
-
- return sprintf(buf, "%s\n", e->items[index]);
-}
-EXPORT_SYMBOL_GPL(counter_signal_enum_read);
-
-ssize_t counter_signal_enum_write(struct counter_device *counter,
- struct counter_signal *signal, void *priv,
- const char *buf, size_t len)
-{
- const struct counter_signal_enum_ext *const e = priv;
- ssize_t index;
- int err;
-
- if (!e->set)
- return -EINVAL;
-
- index = __sysfs_match_string(e->items, e->num_items, buf);
- if (index < 0)
- return index;
-
- err = e->set(counter, signal, index);
- if (err)
- return err;
-
- return len;
-}
-EXPORT_SYMBOL_GPL(counter_signal_enum_write);
-
-ssize_t counter_signal_enum_available_read(struct counter_device *counter,
- struct counter_signal *signal,
- void *priv, char *buf)
-{
- const struct counter_signal_enum_ext *const e = priv;
- size_t i;
- size_t len = 0;
-
- if (!e->num_items)
- return 0;
-
- for (i = 0; i < e->num_items; i++)
- len += sprintf(buf + len, "%s\n", e->items[i]);
-
- return len;
-}
-EXPORT_SYMBOL_GPL(counter_signal_enum_available_read);
-
-ssize_t counter_count_enum_read(struct counter_device *counter,
- struct counter_count *count, void *priv,
- char *buf)
-{
- const struct counter_count_enum_ext *const e = priv;
- int err;
- size_t index;
-
- if (!e->get)
- return -EINVAL;
-
- err = e->get(counter, count, &index);
- if (err)
- return err;
-
- if (index >= e->num_items)
- return -EINVAL;
-
- return sprintf(buf, "%s\n", e->items[index]);
-}
-EXPORT_SYMBOL_GPL(counter_count_enum_read);
-
-ssize_t counter_count_enum_write(struct counter_device *counter,
- struct counter_count *count, void *priv,
- const char *buf, size_t len)
-{
- const struct counter_count_enum_ext *const e = priv;
- ssize_t index;
- int err;
-
- if (!e->set)
- return -EINVAL;
-
- index = __sysfs_match_string(e->items, e->num_items, buf);
- if (index < 0)
- return index;
-
- err = e->set(counter, count, index);
- if (err)
- return err;
-
- return len;
-}
-EXPORT_SYMBOL_GPL(counter_count_enum_write);
-
-ssize_t counter_count_enum_available_read(struct counter_device *counter,
- struct counter_count *count,
- void *priv, char *buf)
-{
- const struct counter_count_enum_ext *const e = priv;
- size_t i;
- size_t len = 0;
-
- if (!e->num_items)
- return 0;
-
- for (i = 0; i < e->num_items; i++)
- len += sprintf(buf + len, "%s\n", e->items[i]);
-
- return len;
-}
-EXPORT_SYMBOL_GPL(counter_count_enum_available_read);
-
-ssize_t counter_device_enum_read(struct counter_device *counter, void *priv,
- char *buf)
-{
- const struct counter_device_enum_ext *const e = priv;
- int err;
- size_t index;
-
- if (!e->get)
- return -EINVAL;
-
- err = e->get(counter, &index);
- if (err)
- return err;
-
- if (index >= e->num_items)
- return -EINVAL;
-
- return sprintf(buf, "%s\n", e->items[index]);
-}
-EXPORT_SYMBOL_GPL(counter_device_enum_read);
-
-ssize_t counter_device_enum_write(struct counter_device *counter, void *priv,
- const char *buf, size_t len)
-{
- const struct counter_device_enum_ext *const e = priv;
- ssize_t index;
- int err;
-
- if (!e->set)
- return -EINVAL;
-
- index = __sysfs_match_string(e->items, e->num_items, buf);
- if (index < 0)
- return index;
-
- err = e->set(counter, index);
- if (err)
- return err;
-
- return len;
-}
-EXPORT_SYMBOL_GPL(counter_device_enum_write);
-
-ssize_t counter_device_enum_available_read(struct counter_device *counter,
- void *priv, char *buf)
-{
- const struct counter_device_enum_ext *const e = priv;
- size_t i;
- size_t len = 0;
-
- if (!e->num_items)
- return 0;
-
- for (i = 0; i < e->num_items; i++)
- len += sprintf(buf + len, "%s\n", e->items[i]);
-
- return len;
-}
-EXPORT_SYMBOL_GPL(counter_device_enum_available_read);
-
-struct counter_attr_parm {
- struct counter_device_attr_group *group;
- const char *prefix;
- const char *name;
- ssize_t (*show)(struct device *dev, struct device_attribute *attr,
- char *buf);
- ssize_t (*store)(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t len);
- void *component;
-};
-
-struct counter_device_attr {
- struct device_attribute dev_attr;
- struct list_head l;
- void *component;
-};
-
-static int counter_attribute_create(const struct counter_attr_parm *const parm)
-{
- struct counter_device_attr *counter_attr;
- struct device_attribute *dev_attr;
- int err;
- struct list_head *const attr_list = &parm->group->attr_list;
-
- /* Allocate a Counter device attribute */
- counter_attr = kzalloc(sizeof(*counter_attr), GFP_KERNEL);
- if (!counter_attr)
- return -ENOMEM;
- dev_attr = &counter_attr->dev_attr;
-
- sysfs_attr_init(&dev_attr->attr);
-
- /* Configure device attribute */
- dev_attr->attr.name = kasprintf(GFP_KERNEL, "%s%s", parm->prefix,
- parm->name);
- if (!dev_attr->attr.name) {
- err = -ENOMEM;
- goto err_free_counter_attr;
- }
- if (parm->show) {
- dev_attr->attr.mode |= 0444;
- dev_attr->show = parm->show;
- }
- if (parm->store) {
- dev_attr->attr.mode |= 0200;
- dev_attr->store = parm->store;
- }
-
- /* Store associated Counter component with attribute */
- counter_attr->component = parm->component;
-
- /* Keep track of the attribute for later cleanup */
- list_add(&counter_attr->l, attr_list);
- parm->group->num_attr++;
-
- return 0;
-
-err_free_counter_attr:
- kfree(counter_attr);
- return err;
-}
-
-#define to_counter_attr(_dev_attr) \
- container_of(_dev_attr, struct counter_device_attr, dev_attr)
-
-struct counter_signal_unit {
- struct counter_signal *signal;
-};
-
-static const char *const counter_signal_level_str[] = {
- [COUNTER_SIGNAL_LEVEL_LOW] = "low",
- [COUNTER_SIGNAL_LEVEL_HIGH] = "high"
-};
-
-static ssize_t counter_signal_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct counter_device *const counter = dev_get_drvdata(dev);
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_signal_unit *const component = devattr->component;
- struct counter_signal *const signal = component->signal;
- int err;
- enum counter_signal_level level;
-
- err = counter->ops->signal_read(counter, signal, &level);
- if (err)
- return err;
-
- return sprintf(buf, "%s\n", counter_signal_level_str[level]);
-}
-
-struct counter_name_unit {
- const char *name;
-};
-
-static ssize_t counter_device_attr_name_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- const struct counter_name_unit *const comp = to_counter_attr(attr)->component;
-
- return sprintf(buf, "%s\n", comp->name);
-}
-
-static int counter_name_attribute_create(
- struct counter_device_attr_group *const group,
- const char *const name)
-{
- struct counter_name_unit *name_comp;
- struct counter_attr_parm parm;
- int err;
-
- /* Skip if no name */
- if (!name)
- return 0;
-
- /* Allocate name attribute component */
- name_comp = kmalloc(sizeof(*name_comp), GFP_KERNEL);
- if (!name_comp)
- return -ENOMEM;
- name_comp->name = name;
-
- /* Allocate Signal name attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = "name";
- parm.show = counter_device_attr_name_show;
- parm.store = NULL;
- parm.component = name_comp;
- err = counter_attribute_create(&parm);
- if (err)
- goto err_free_name_comp;
-
- return 0;
-
-err_free_name_comp:
- kfree(name_comp);
- return err;
-}
-
-struct counter_signal_ext_unit {
- struct counter_signal *signal;
- const struct counter_signal_ext *ext;
-};
-
-static ssize_t counter_signal_ext_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_signal_ext_unit *const comp = devattr->component;
- const struct counter_signal_ext *const ext = comp->ext;
-
- return ext->read(dev_get_drvdata(dev), comp->signal, ext->priv, buf);
-}
-
-static ssize_t counter_signal_ext_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_signal_ext_unit *const comp = devattr->component;
- const struct counter_signal_ext *const ext = comp->ext;
-
- return ext->write(dev_get_drvdata(dev), comp->signal, ext->priv, buf,
- len);
-}
-
-static void counter_device_attr_list_free(struct list_head *attr_list)
-{
- struct counter_device_attr *p, *n;
-
- list_for_each_entry_safe(p, n, attr_list, l) {
- /* free attribute name and associated component memory */
- kfree(p->dev_attr.attr.name);
- kfree(p->component);
- list_del(&p->l);
- kfree(p);
- }
-}
-
-static int counter_signal_ext_register(
- struct counter_device_attr_group *const group,
- struct counter_signal *const signal)
-{
- const size_t num_ext = signal->num_ext;
- size_t i;
- const struct counter_signal_ext *ext;
- struct counter_signal_ext_unit *signal_ext_comp;
- struct counter_attr_parm parm;
- int err;
-
- /* Create an attribute for each extension */
- for (i = 0 ; i < num_ext; i++) {
- ext = signal->ext + i;
-
- /* Allocate signal_ext attribute component */
- signal_ext_comp = kmalloc(sizeof(*signal_ext_comp), GFP_KERNEL);
- if (!signal_ext_comp) {
- err = -ENOMEM;
- goto err_free_attr_list;
- }
- signal_ext_comp->signal = signal;
- signal_ext_comp->ext = ext;
-
- /* Allocate a Counter device attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = ext->name;
- parm.show = (ext->read) ? counter_signal_ext_show : NULL;
- parm.store = (ext->write) ? counter_signal_ext_store : NULL;
- parm.component = signal_ext_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(signal_ext_comp);
- goto err_free_attr_list;
- }
- }
-
- return 0;
-
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-static int counter_signal_attributes_create(
- struct counter_device_attr_group *const group,
- const struct counter_device *const counter,
- struct counter_signal *const signal)
-{
- struct counter_signal_unit *signal_comp;
- struct counter_attr_parm parm;
- int err;
-
- /* Allocate Signal attribute component */
- signal_comp = kmalloc(sizeof(*signal_comp), GFP_KERNEL);
- if (!signal_comp)
- return -ENOMEM;
- signal_comp->signal = signal;
-
- /* Create main Signal attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = "signal";
- parm.show = (counter->ops->signal_read) ? counter_signal_show : NULL;
- parm.store = NULL;
- parm.component = signal_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(signal_comp);
- return err;
- }
-
- /* Create Signal name attribute */
- err = counter_name_attribute_create(group, signal->name);
- if (err)
- goto err_free_attr_list;
-
- /* Register Signal extension attributes */
- err = counter_signal_ext_register(group, signal);
- if (err)
- goto err_free_attr_list;
-
- return 0;
-
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-static int counter_signals_register(
- struct counter_device_attr_group *const groups_list,
- const struct counter_device *const counter)
-{
- const size_t num_signals = counter->num_signals;
- size_t i;
- struct counter_signal *signal;
- const char *name;
- int err;
-
- /* Register each Signal */
- for (i = 0; i < num_signals; i++) {
- signal = counter->signals + i;
-
- /* Generate Signal attribute directory name */
- name = kasprintf(GFP_KERNEL, "signal%d", signal->id);
- if (!name) {
- err = -ENOMEM;
- goto err_free_attr_groups;
- }
- groups_list[i].attr_group.name = name;
-
- /* Create all attributes associated with Signal */
- err = counter_signal_attributes_create(groups_list + i, counter,
- signal);
- if (err)
- goto err_free_attr_groups;
- }
-
- return 0;
-
-err_free_attr_groups:
- do {
- kfree(groups_list[i].attr_group.name);
- counter_device_attr_list_free(&groups_list[i].attr_list);
- } while (i--);
- return err;
-}
-
-static const char *const counter_synapse_action_str[] = {
- [COUNTER_SYNAPSE_ACTION_NONE] = "none",
- [COUNTER_SYNAPSE_ACTION_RISING_EDGE] = "rising edge",
- [COUNTER_SYNAPSE_ACTION_FALLING_EDGE] = "falling edge",
- [COUNTER_SYNAPSE_ACTION_BOTH_EDGES] = "both edges"
-};
-
-struct counter_action_unit {
- struct counter_synapse *synapse;
- struct counter_count *count;
-};
-
-static ssize_t counter_action_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- int err;
- struct counter_device *const counter = dev_get_drvdata(dev);
- const struct counter_action_unit *const component = devattr->component;
- struct counter_count *const count = component->count;
- struct counter_synapse *const synapse = component->synapse;
- size_t action_index;
- enum counter_synapse_action action;
-
- err = counter->ops->action_get(counter, count, synapse, &action_index);
- if (err)
- return err;
-
- synapse->action = action_index;
-
- action = synapse->actions_list[action_index];
- return sprintf(buf, "%s\n", counter_synapse_action_str[action]);
-}
-
-static ssize_t counter_action_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_action_unit *const component = devattr->component;
- struct counter_synapse *const synapse = component->synapse;
- size_t action_index;
- const size_t num_actions = synapse->num_actions;
- enum counter_synapse_action action;
- int err;
- struct counter_device *const counter = dev_get_drvdata(dev);
- struct counter_count *const count = component->count;
-
- /* Find requested action mode */
- for (action_index = 0; action_index < num_actions; action_index++) {
- action = synapse->actions_list[action_index];
- if (sysfs_streq(buf, counter_synapse_action_str[action]))
- break;
- }
- /* If requested action mode not found */
- if (action_index >= num_actions)
- return -EINVAL;
-
- err = counter->ops->action_set(counter, count, synapse, action_index);
- if (err)
- return err;
-
- synapse->action = action_index;
-
- return len;
-}
-
-struct counter_action_avail_unit {
- const enum counter_synapse_action *actions_list;
- size_t num_actions;
-};
-
-static ssize_t counter_synapse_action_available_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_action_avail_unit *const component = devattr->component;
- size_t i;
- enum counter_synapse_action action;
- ssize_t len = 0;
-
- for (i = 0; i < component->num_actions; i++) {
- action = component->actions_list[i];
- len += sprintf(buf + len, "%s\n",
- counter_synapse_action_str[action]);
- }
-
- return len;
-}
-
-static int counter_synapses_register(
- struct counter_device_attr_group *const group,
- const struct counter_device *const counter,
- struct counter_count *const count, const char *const count_attr_name)
-{
- size_t i;
- struct counter_synapse *synapse;
- const char *prefix;
- struct counter_action_unit *action_comp;
- struct counter_attr_parm parm;
- int err;
- struct counter_action_avail_unit *avail_comp;
-
- /* Register each Synapse */
- for (i = 0; i < count->num_synapses; i++) {
- synapse = count->synapses + i;
-
- /* Generate attribute prefix */
- prefix = kasprintf(GFP_KERNEL, "signal%d_",
- synapse->signal->id);
- if (!prefix) {
- err = -ENOMEM;
- goto err_free_attr_list;
- }
-
- /* Allocate action attribute component */
- action_comp = kmalloc(sizeof(*action_comp), GFP_KERNEL);
- if (!action_comp) {
- err = -ENOMEM;
- goto err_free_prefix;
- }
- action_comp->synapse = synapse;
- action_comp->count = count;
-
- /* Create action attribute */
- parm.group = group;
- parm.prefix = prefix;
- parm.name = "action";
- parm.show = (counter->ops->action_get) ? counter_action_show : NULL;
- parm.store = (counter->ops->action_set) ? counter_action_store : NULL;
- parm.component = action_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(action_comp);
- goto err_free_prefix;
- }
-
- /* Allocate action available attribute component */
- avail_comp = kmalloc(sizeof(*avail_comp), GFP_KERNEL);
- if (!avail_comp) {
- err = -ENOMEM;
- goto err_free_prefix;
- }
- avail_comp->actions_list = synapse->actions_list;
- avail_comp->num_actions = synapse->num_actions;
-
- /* Create action_available attribute */
- parm.group = group;
- parm.prefix = prefix;
- parm.name = "action_available";
- parm.show = counter_synapse_action_available_show;
- parm.store = NULL;
- parm.component = avail_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(avail_comp);
- goto err_free_prefix;
- }
-
- kfree(prefix);
- }
-
- return 0;
-
-err_free_prefix:
- kfree(prefix);
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-struct counter_count_unit {
- struct counter_count *count;
-};
-
-static ssize_t counter_count_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct counter_device *const counter = dev_get_drvdata(dev);
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_count_unit *const component = devattr->component;
- struct counter_count *const count = component->count;
- int err;
- unsigned long val;
-
- err = counter->ops->count_read(counter, count, &val);
- if (err)
- return err;
-
- return sprintf(buf, "%lu\n", val);
-}
-
-static ssize_t counter_count_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct counter_device *const counter = dev_get_drvdata(dev);
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_count_unit *const component = devattr->component;
- struct counter_count *const count = component->count;
- int err;
- unsigned long val;
-
- err = kstrtoul(buf, 0, &val);
- if (err)
- return err;
-
- err = counter->ops->count_write(counter, count, val);
- if (err)
- return err;
-
- return len;
-}
-
-static const char *const counter_function_str[] = {
- [COUNTER_FUNCTION_INCREASE] = "increase",
- [COUNTER_FUNCTION_DECREASE] = "decrease",
- [COUNTER_FUNCTION_PULSE_DIRECTION] = "pulse-direction",
- [COUNTER_FUNCTION_QUADRATURE_X1_A] = "quadrature x1 a",
- [COUNTER_FUNCTION_QUADRATURE_X1_B] = "quadrature x1 b",
- [COUNTER_FUNCTION_QUADRATURE_X2_A] = "quadrature x2 a",
- [COUNTER_FUNCTION_QUADRATURE_X2_B] = "quadrature x2 b",
- [COUNTER_FUNCTION_QUADRATURE_X4] = "quadrature x4"
-};
-
-static ssize_t counter_function_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- int err;
- struct counter_device *const counter = dev_get_drvdata(dev);
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_count_unit *const component = devattr->component;
- struct counter_count *const count = component->count;
- size_t func_index;
- enum counter_function function;
-
- err = counter->ops->function_get(counter, count, &func_index);
- if (err)
- return err;
-
- count->function = func_index;
-
- function = count->functions_list[func_index];
- return sprintf(buf, "%s\n", counter_function_str[function]);
-}
-
-static ssize_t counter_function_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_count_unit *const component = devattr->component;
- struct counter_count *const count = component->count;
- const size_t num_functions = count->num_functions;
- size_t func_index;
- enum counter_function function;
- int err;
- struct counter_device *const counter = dev_get_drvdata(dev);
-
- /* Find requested Count function mode */
- for (func_index = 0; func_index < num_functions; func_index++) {
- function = count->functions_list[func_index];
- if (sysfs_streq(buf, counter_function_str[function]))
- break;
- }
- /* Return error if requested Count function mode not found */
- if (func_index >= num_functions)
- return -EINVAL;
-
- err = counter->ops->function_set(counter, count, func_index);
- if (err)
- return err;
-
- count->function = func_index;
-
- return len;
-}
-
-struct counter_count_ext_unit {
- struct counter_count *count;
- const struct counter_count_ext *ext;
-};
-
-static ssize_t counter_count_ext_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_count_ext_unit *const comp = devattr->component;
- const struct counter_count_ext *const ext = comp->ext;
-
- return ext->read(dev_get_drvdata(dev), comp->count, ext->priv, buf);
-}
-
-static ssize_t counter_count_ext_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_count_ext_unit *const comp = devattr->component;
- const struct counter_count_ext *const ext = comp->ext;
-
- return ext->write(dev_get_drvdata(dev), comp->count, ext->priv, buf,
- len);
-}
-
-static int counter_count_ext_register(
- struct counter_device_attr_group *const group,
- struct counter_count *const count)
-{
- size_t i;
- const struct counter_count_ext *ext;
- struct counter_count_ext_unit *count_ext_comp;
- struct counter_attr_parm parm;
- int err;
-
- /* Create an attribute for each extension */
- for (i = 0 ; i < count->num_ext; i++) {
- ext = count->ext + i;
-
- /* Allocate count_ext attribute component */
- count_ext_comp = kmalloc(sizeof(*count_ext_comp), GFP_KERNEL);
- if (!count_ext_comp) {
- err = -ENOMEM;
- goto err_free_attr_list;
- }
- count_ext_comp->count = count;
- count_ext_comp->ext = ext;
-
- /* Allocate count_ext attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = ext->name;
- parm.show = (ext->read) ? counter_count_ext_show : NULL;
- parm.store = (ext->write) ? counter_count_ext_store : NULL;
- parm.component = count_ext_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(count_ext_comp);
- goto err_free_attr_list;
- }
- }
-
- return 0;
-
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-struct counter_func_avail_unit {
- const enum counter_function *functions_list;
- size_t num_functions;
-};
-
-static ssize_t counter_function_available_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_func_avail_unit *const component = devattr->component;
- const enum counter_function *const func_list = component->functions_list;
- const size_t num_functions = component->num_functions;
- size_t i;
- enum counter_function function;
- ssize_t len = 0;
-
- for (i = 0; i < num_functions; i++) {
- function = func_list[i];
- len += sprintf(buf + len, "%s\n",
- counter_function_str[function]);
- }
-
- return len;
-}
-
-static int counter_count_attributes_create(
- struct counter_device_attr_group *const group,
- const struct counter_device *const counter,
- struct counter_count *const count)
-{
- struct counter_count_unit *count_comp;
- struct counter_attr_parm parm;
- int err;
- struct counter_count_unit *func_comp;
- struct counter_func_avail_unit *avail_comp;
-
- /* Allocate count attribute component */
- count_comp = kmalloc(sizeof(*count_comp), GFP_KERNEL);
- if (!count_comp)
- return -ENOMEM;
- count_comp->count = count;
-
- /* Create main Count attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = "count";
- parm.show = (counter->ops->count_read) ? counter_count_show : NULL;
- parm.store = (counter->ops->count_write) ? counter_count_store : NULL;
- parm.component = count_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(count_comp);
- return err;
- }
-
- /* Allocate function attribute component */
- func_comp = kmalloc(sizeof(*func_comp), GFP_KERNEL);
- if (!func_comp) {
- err = -ENOMEM;
- goto err_free_attr_list;
- }
- func_comp->count = count;
-
- /* Create Count function attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = "function";
- parm.show = (counter->ops->function_get) ? counter_function_show : NULL;
- parm.store = (counter->ops->function_set) ? counter_function_store : NULL;
- parm.component = func_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(func_comp);
- goto err_free_attr_list;
- }
-
- /* Allocate function available attribute component */
- avail_comp = kmalloc(sizeof(*avail_comp), GFP_KERNEL);
- if (!avail_comp) {
- err = -ENOMEM;
- goto err_free_attr_list;
- }
- avail_comp->functions_list = count->functions_list;
- avail_comp->num_functions = count->num_functions;
-
- /* Create Count function_available attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = "function_available";
- parm.show = counter_function_available_show;
- parm.store = NULL;
- parm.component = avail_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(avail_comp);
- goto err_free_attr_list;
- }
-
- /* Create Count name attribute */
- err = counter_name_attribute_create(group, count->name);
- if (err)
- goto err_free_attr_list;
-
- /* Register Count extension attributes */
- err = counter_count_ext_register(group, count);
- if (err)
- goto err_free_attr_list;
-
- return 0;
-
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-static int counter_counts_register(
- struct counter_device_attr_group *const groups_list,
- const struct counter_device *const counter)
-{
- size_t i;
- struct counter_count *count;
- const char *name;
- int err;
-
- /* Register each Count */
- for (i = 0; i < counter->num_counts; i++) {
- count = counter->counts + i;
-
- /* Generate Count attribute directory name */
- name = kasprintf(GFP_KERNEL, "count%d", count->id);
- if (!name) {
- err = -ENOMEM;
- goto err_free_attr_groups;
- }
- groups_list[i].attr_group.name = name;
-
- /* Register the Synapses associated with each Count */
- err = counter_synapses_register(groups_list + i, counter, count,
- name);
- if (err)
- goto err_free_attr_groups;
-
- /* Create all attributes associated with Count */
- err = counter_count_attributes_create(groups_list + i, counter,
- count);
- if (err)
- goto err_free_attr_groups;
- }
-
- return 0;
-
-err_free_attr_groups:
- do {
- kfree(groups_list[i].attr_group.name);
- counter_device_attr_list_free(&groups_list[i].attr_list);
- } while (i--);
- return err;
-}
-
-struct counter_size_unit {
- size_t size;
-};
-
-static ssize_t counter_device_attr_size_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- const struct counter_size_unit *const comp = to_counter_attr(attr)->component;
-
- return sprintf(buf, "%zu\n", comp->size);
-}
-
-static int counter_size_attribute_create(
- struct counter_device_attr_group *const group,
- const size_t size, const char *const name)
-{
- struct counter_size_unit *size_comp;
- struct counter_attr_parm parm;
- int err;
-
- /* Allocate size attribute component */
- size_comp = kmalloc(sizeof(*size_comp), GFP_KERNEL);
- if (!size_comp)
- return -ENOMEM;
- size_comp->size = size;
-
- parm.group = group;
- parm.prefix = "";
- parm.name = name;
- parm.show = counter_device_attr_size_show;
- parm.store = NULL;
- parm.component = size_comp;
- err = counter_attribute_create(&parm);
- if (err)
- goto err_free_size_comp;
-
- return 0;
-
-err_free_size_comp:
- kfree(size_comp);
- return err;
-}
-
-struct counter_ext_unit {
- const struct counter_device_ext *ext;
-};
-
-static ssize_t counter_device_ext_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_ext_unit *const component = devattr->component;
- const struct counter_device_ext *const ext = component->ext;
-
- return ext->read(dev_get_drvdata(dev), ext->priv, buf);
-}
-
-static ssize_t counter_device_ext_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- const struct counter_device_attr *const devattr = to_counter_attr(attr);
- const struct counter_ext_unit *const component = devattr->component;
- const struct counter_device_ext *const ext = component->ext;
-
- return ext->write(dev_get_drvdata(dev), ext->priv, buf, len);
-}
-
-static int counter_device_ext_register(
- struct counter_device_attr_group *const group,
- struct counter_device *const counter)
-{
- size_t i;
- struct counter_ext_unit *ext_comp;
- struct counter_attr_parm parm;
- int err;
-
- /* Create an attribute for each extension */
- for (i = 0 ; i < counter->num_ext; i++) {
- /* Allocate extension attribute component */
- ext_comp = kmalloc(sizeof(*ext_comp), GFP_KERNEL);
- if (!ext_comp) {
- err = -ENOMEM;
- goto err_free_attr_list;
- }
-
- ext_comp->ext = counter->ext + i;
-
- /* Allocate extension attribute */
- parm.group = group;
- parm.prefix = "";
- parm.name = counter->ext[i].name;
- parm.show = (counter->ext[i].read) ? counter_device_ext_show : NULL;
- parm.store = (counter->ext[i].write) ? counter_device_ext_store : NULL;
- parm.component = ext_comp;
- err = counter_attribute_create(&parm);
- if (err) {
- kfree(ext_comp);
- goto err_free_attr_list;
- }
- }
-
- return 0;
-
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-static int counter_global_attr_register(
- struct counter_device_attr_group *const group,
- struct counter_device *const counter)
-{
- int err;
-
- /* Create name attribute */
- err = counter_name_attribute_create(group, counter->name);
- if (err)
- return err;
-
- /* Create num_counts attribute */
- err = counter_size_attribute_create(group, counter->num_counts,
- "num_counts");
- if (err)
- goto err_free_attr_list;
-
- /* Create num_signals attribute */
- err = counter_size_attribute_create(group, counter->num_signals,
- "num_signals");
- if (err)
- goto err_free_attr_list;
-
- /* Register Counter device extension attributes */
- err = counter_device_ext_register(group, counter);
- if (err)
- goto err_free_attr_list;
-
- return 0;
-
-err_free_attr_list:
- counter_device_attr_list_free(&group->attr_list);
- return err;
-}
-
-static void counter_device_groups_list_free(
- struct counter_device_attr_group *const groups_list,
- const size_t num_groups)
-{
- struct counter_device_attr_group *group;
- size_t i;
-
- /* loop through all attribute groups (signals, counts, global, etc.) */
- for (i = 0; i < num_groups; i++) {
- group = groups_list + i;
-
- /* free all attribute group and associated attributes memory */
- kfree(group->attr_group.name);
- kfree(group->attr_group.attrs);
- counter_device_attr_list_free(&group->attr_list);
- }
-
- kfree(groups_list);
-}
-
-static int counter_device_groups_list_prepare(
- struct counter_device *const counter)
-{
- const size_t total_num_groups =
- counter->num_signals + counter->num_counts + 1;
- struct counter_device_attr_group *groups_list;
- size_t i;
- int err;
- size_t num_groups = 0;
-
- /* Allocate space for attribute groups (signals, counts, and ext) */
- groups_list = kcalloc(total_num_groups, sizeof(*groups_list),
- GFP_KERNEL);
- if (!groups_list)
- return -ENOMEM;
-
- /* Initialize attribute lists */
- for (i = 0; i < total_num_groups; i++)
- INIT_LIST_HEAD(&groups_list[i].attr_list);
-
- /* Register Signals */
- err = counter_signals_register(groups_list, counter);
- if (err)
- goto err_free_groups_list;
- num_groups += counter->num_signals;
-
- /* Register Counts and respective Synapses */
- err = counter_counts_register(groups_list + num_groups, counter);
- if (err)
- goto err_free_groups_list;
- num_groups += counter->num_counts;
-
- /* Register Counter global attributes */
- err = counter_global_attr_register(groups_list + num_groups, counter);
- if (err)
- goto err_free_groups_list;
- num_groups++;
-
- /* Store groups_list in device_state */
- counter->device_state->groups_list = groups_list;
- counter->device_state->num_groups = num_groups;
-
- return 0;
-
-err_free_groups_list:
- counter_device_groups_list_free(groups_list, num_groups);
- return err;
-}
-
-static int counter_device_groups_prepare(
- struct counter_device_state *const device_state)
-{
- size_t i, j;
- struct counter_device_attr_group *group;
- int err;
- struct counter_device_attr *p;
-
- /* Allocate attribute groups for association with device */
- device_state->groups = kcalloc(device_state->num_groups + 1,
- sizeof(*device_state->groups),
- GFP_KERNEL);
- if (!device_state->groups)
- return -ENOMEM;
-
- /* Prepare each group of attributes for association */
- for (i = 0; i < device_state->num_groups; i++) {
- group = device_state->groups_list + i;
-
- /* Allocate space for attribute pointers in attribute group */
- group->attr_group.attrs = kcalloc(group->num_attr + 1,
- sizeof(*group->attr_group.attrs), GFP_KERNEL);
- if (!group->attr_group.attrs) {
- err = -ENOMEM;
- goto err_free_groups;
- }
-
- /* Add attribute pointers to attribute group */
- j = 0;
- list_for_each_entry(p, &group->attr_list, l)
- group->attr_group.attrs[j++] = &p->dev_attr.attr;
-
- /* Group attributes in attribute group */
- device_state->groups[i] = &group->attr_group;
- }
- /* Associate attributes with device */
- device_state->dev.groups = device_state->groups;
-
- return 0;
-
-err_free_groups:
- do {
- group = device_state->groups_list + i;
- kfree(group->attr_group.attrs);
- group->attr_group.attrs = NULL;
- } while (i--);
- kfree(device_state->groups);
- return err;
-}
-
-/* Provides a unique ID for each counter device */
-static DEFINE_IDA(counter_ida);
-
-static void counter_device_release(struct device *dev)
-{
- struct counter_device *const counter = dev_get_drvdata(dev);
- struct counter_device_state *const device_state = counter->device_state;
-
- kfree(device_state->groups);
- counter_device_groups_list_free(device_state->groups_list,
- device_state->num_groups);
- ida_simple_remove(&counter_ida, device_state->id);
- kfree(device_state);
-}
-
-static struct device_type counter_device_type = {
- .name = "counter_device",
- .release = counter_device_release
-};
-
-static struct bus_type counter_bus_type = {
- .name = "counter"
-};
-
-/**
- * counter_register - register Counter to the system
- * @counter: pointer to Counter to register
- *
- * This function registers a Counter to the system. A sysfs "counter" directory
- * will be created and populated with sysfs attributes correlating with the
- * Counter Signals, Synapses, and Counts respectively.
- */
-int counter_register(struct counter_device *const counter)
-{
- struct counter_device_state *device_state;
- int err;
-
- /* Allocate internal state container for Counter device */
- device_state = kzalloc(sizeof(*device_state), GFP_KERNEL);
- if (!device_state)
- return -ENOMEM;
- counter->device_state = device_state;
-
- /* Acquire unique ID */
- device_state->id = ida_simple_get(&counter_ida, 0, 0, GFP_KERNEL);
- if (device_state->id < 0) {
- err = device_state->id;
- goto err_free_device_state;
- }
-
- /* Configure device structure for Counter */
- device_state->dev.type = &counter_device_type;
- device_state->dev.bus = &counter_bus_type;
- if (counter->parent) {
- device_state->dev.parent = counter->parent;
- device_state->dev.of_node = counter->parent->of_node;
- }
- dev_set_name(&device_state->dev, "counter%d", device_state->id);
- device_initialize(&device_state->dev);
- dev_set_drvdata(&device_state->dev, counter);
-
- /* Prepare device attributes */
- err = counter_device_groups_list_prepare(counter);
- if (err)
- goto err_free_id;
-
- /* Organize device attributes to groups and match to device */
- err = counter_device_groups_prepare(device_state);
- if (err)
- goto err_free_groups_list;
-
- /* Add device to system */
- err = device_add(&device_state->dev);
- if (err)
- goto err_free_groups;
-
- return 0;
-
-err_free_groups:
- kfree(device_state->groups);
-err_free_groups_list:
- counter_device_groups_list_free(device_state->groups_list,
- device_state->num_groups);
-err_free_id:
- ida_simple_remove(&counter_ida, device_state->id);
-err_free_device_state:
- kfree(device_state);
- return err;
-}
-EXPORT_SYMBOL_GPL(counter_register);
-
-/**
- * counter_unregister - unregister Counter from the system
- * @counter: pointer to Counter to unregister
- *
- * The Counter is unregistered from the system; all allocated memory is freed.
- */
-void counter_unregister(struct counter_device *const counter)
-{
- if (counter)
- device_del(&counter->device_state->dev);
-}
-EXPORT_SYMBOL_GPL(counter_unregister);
-
-static void devm_counter_unreg(struct device *dev, void *res)
-{
- counter_unregister(*(struct counter_device **)res);
-}
-
-/**
- * devm_counter_register - Resource-managed counter_register
- * @dev: device to allocate counter_device for
- * @counter: pointer to Counter to register
- *
- * Managed counter_register. The Counter registered with this function is
- * automatically unregistered on driver detach. This function calls
- * counter_register internally. Refer to that function for more information.
- *
- * If an Counter registered with this function needs to be unregistered
- * separately, devm_counter_unregister must be used.
- *
- * RETURNS:
- * 0 on success, negative error number on failure.
- */
-int devm_counter_register(struct device *dev,
- struct counter_device *const counter)
-{
- struct counter_device **ptr;
- int ret;
-
- ptr = devres_alloc(devm_counter_unreg, sizeof(*ptr), GFP_KERNEL);
- if (!ptr)
- return -ENOMEM;
-
- ret = counter_register(counter);
- if (!ret) {
- *ptr = counter;
- devres_add(dev, ptr);
- } else {
- devres_free(ptr);
- }
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(devm_counter_register);
-
-static int devm_counter_match(struct device *dev, void *res, void *data)
-{
- struct counter_device **r = res;
-
- if (!r || !*r) {
- WARN_ON(!r || !*r);
- return 0;
- }
-
- return *r == data;
-}
-
-/**
- * devm_counter_unregister - Resource-managed counter_unregister
- * @dev: device this counter_device belongs to
- * @counter: pointer to Counter associated with the device
- *
- * Unregister Counter registered with devm_counter_register.
- */
-void devm_counter_unregister(struct device *dev,
- struct counter_device *const counter)
-{
- int rc;
-
- rc = devres_release(dev, devm_counter_unreg, devm_counter_match,
- counter);
- WARN_ON(rc);
-}
-EXPORT_SYMBOL_GPL(devm_counter_unregister);
-
-static int __init counter_init(void)
-{
- return bus_register(&counter_bus_type);
-}
-
-static void __exit counter_exit(void)
-{
- bus_unregister(&counter_bus_type);
-}
-
-subsys_initcall(counter_init);
-module_exit(counter_exit);
-
-MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@xxxxxxxxx>");
-MODULE_DESCRIPTION("Generic Counter interface");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/counter/ftm-quaddec.c b/drivers/counter/ftm-quaddec.c
index 53c15f84909b..5ef0478709cd 100644
--- a/drivers/counter/ftm-quaddec.c
+++ b/drivers/counter/ftm-quaddec.c
@@ -14,6 +14,7 @@
#include <linux/mutex.h>
#include <linux/counter.h>
#include <linux/bitfield.h>
+#include <linux/types.h>
#define FTM_FIELD_UPDATE(ftm, offset, mask, val) \
({ \
@@ -115,8 +116,7 @@ static void ftm_quaddec_disable(void *ftm)
}
static int ftm_quaddec_get_prescaler(struct counter_device *counter,
- struct counter_count *count,
- size_t *cnt_mode)
+ struct counter_count *count, u32 *cnt_mode)
{
struct ftm_quaddec *ftm = counter->priv;
uint32_t scflags;
@@ -129,8 +129,7 @@ static int ftm_quaddec_get_prescaler(struct counter_device *counter,
}
static int ftm_quaddec_set_prescaler(struct counter_device *counter,
- struct counter_count *count,
- size_t cnt_mode)
+ struct counter_count *count, u32 cnt_mode)
{
struct ftm_quaddec *ftm = counter->priv;
@@ -151,33 +150,17 @@ static const char * const ftm_quaddec_prescaler[] = {
"1", "2", "4", "8", "16", "32", "64", "128"
};
-static struct counter_count_enum_ext ftm_quaddec_prescaler_enum = {
- .items = ftm_quaddec_prescaler,
- .num_items = ARRAY_SIZE(ftm_quaddec_prescaler),
- .get = ftm_quaddec_get_prescaler,
- .set = ftm_quaddec_set_prescaler
-};
-
-enum ftm_quaddec_synapse_action {
- FTM_QUADDEC_SYNAPSE_ACTION_BOTH_EDGES,
-};
-
static const enum counter_synapse_action ftm_quaddec_synapse_actions[] = {
- [FTM_QUADDEC_SYNAPSE_ACTION_BOTH_EDGES] =
COUNTER_SYNAPSE_ACTION_BOTH_EDGES
};
-enum ftm_quaddec_count_function {
- FTM_QUADDEC_COUNT_ENCODER_MODE_1,
-};
-
static const enum counter_function ftm_quaddec_count_functions[] = {
- [FTM_QUADDEC_COUNT_ENCODER_MODE_1] = COUNTER_FUNCTION_QUADRATURE_X4
+ COUNTER_FUNCTION_QUADRATURE_X4
};
static int ftm_quaddec_count_read(struct counter_device *counter,
struct counter_count *count,
- unsigned long *val)
+ u64 *val)
{
struct ftm_quaddec *const ftm = counter->priv;
uint32_t cntval;
@@ -191,7 +174,7 @@ static int ftm_quaddec_count_read(struct counter_device *counter,
static int ftm_quaddec_count_write(struct counter_device *counter,
struct counter_count *count,
- const unsigned long val)
+ const u64 val)
{
struct ftm_quaddec *const ftm = counter->priv;
@@ -205,21 +188,21 @@ static int ftm_quaddec_count_write(struct counter_device *counter,
return 0;
}
-static int ftm_quaddec_count_function_get(struct counter_device *counter,
- struct counter_count *count,
- size_t *function)
+static int ftm_quaddec_count_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
- *function = FTM_QUADDEC_COUNT_ENCODER_MODE_1;
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
return 0;
}
-static int ftm_quaddec_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t *action)
+static int ftm_quaddec_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
- *action = FTM_QUADDEC_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
}
@@ -227,8 +210,8 @@ static int ftm_quaddec_action_get(struct counter_device *counter,
static const struct counter_ops ftm_quaddec_cnt_ops = {
.count_read = ftm_quaddec_count_read,
.count_write = ftm_quaddec_count_write,
- .function_get = ftm_quaddec_count_function_get,
- .action_get = ftm_quaddec_action_get,
+ .function_read = ftm_quaddec_count_function_read,
+ .action_read = ftm_quaddec_action_read,
};
static struct counter_signal ftm_quaddec_signals[] = {
@@ -255,9 +238,12 @@ static struct counter_synapse ftm_quaddec_count_synapses[] = {
}
};
-static const struct counter_count_ext ftm_quaddec_count_ext[] = {
- COUNTER_COUNT_ENUM("prescaler", &ftm_quaddec_prescaler_enum),
- COUNTER_COUNT_ENUM_AVAILABLE("prescaler", &ftm_quaddec_prescaler_enum),
+static DEFINE_COUNTER_ENUM(ftm_quaddec_prescaler_enum, ftm_quaddec_prescaler);
+
+static struct counter_comp ftm_quaddec_count_ext[] = {
+ COUNTER_COMP_COUNT_ENUM("prescaler", ftm_quaddec_get_prescaler,
+ ftm_quaddec_set_prescaler,
+ ftm_quaddec_prescaler_enum),
};
static struct counter_count ftm_quaddec_counts = {
diff --git a/drivers/counter/intel-qep.c b/drivers/counter/intel-qep.c
index 8a6847d5fb2b..0924d16de6e2 100644
--- a/drivers/counter/intel-qep.c
+++ b/drivers/counter/intel-qep.c
@@ -62,13 +62,6 @@
#define INTEL_QEP_CLK_PERIOD_NS 10
-#define INTEL_QEP_COUNTER_EXT_RW(_name) \
-{ \
- .name = #_name, \
- .read = _name##_read, \
- .write = _name##_write, \
-}
-
struct intel_qep {
struct counter_device counter;
struct mutex lock;
@@ -114,8 +107,7 @@ static void intel_qep_init(struct intel_qep *qep)
}
static int intel_qep_count_read(struct counter_device *counter,
- struct counter_count *count,
- unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct intel_qep *const qep = counter->priv;
@@ -130,11 +122,11 @@ static const enum counter_function intel_qep_count_functions[] = {
COUNTER_FUNCTION_QUADRATURE_X4,
};
-static int intel_qep_function_get(struct counter_device *counter,
- struct counter_count *count,
- size_t *function)
+static int intel_qep_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
- *function = 0;
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
return 0;
}
@@ -143,19 +135,19 @@ static const enum counter_synapse_action intel_qep_synapse_actions[] = {
COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
};
-static int intel_qep_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t *action)
+static int intel_qep_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
- *action = 0;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
}
static const struct counter_ops intel_qep_counter_ops = {
.count_read = intel_qep_count_read,
- .function_get = intel_qep_function_get,
- .action_get = intel_qep_action_get,
+ .function_read = intel_qep_function_read,
+ .action_read = intel_qep_action_read,
};
#define INTEL_QEP_SIGNAL(_id, _name) { \
@@ -181,31 +173,27 @@ static struct counter_synapse intel_qep_count_synapses[] = {
INTEL_QEP_SYNAPSE(2),
};
-static ssize_t ceiling_read(struct counter_device *counter,
- struct counter_count *count,
- void *priv, char *buf)
+static int intel_qep_ceiling_read(struct counter_device *counter,
+ struct counter_count *count, u64 *ceiling)
{
struct intel_qep *qep = counter->priv;
- u32 reg;
pm_runtime_get_sync(qep->dev);
- reg = intel_qep_readl(qep, INTEL_QEPMAX);
+ *ceiling = intel_qep_readl(qep, INTEL_QEPMAX);
pm_runtime_put(qep->dev);
- return sysfs_emit(buf, "%u\n", reg);
+ return 0;
}
-static ssize_t ceiling_write(struct counter_device *counter,
- struct counter_count *count,
- void *priv, const char *buf, size_t len)
+static int intel_qep_ceiling_write(struct counter_device *counter,
+ struct counter_count *count, u64 max)
{
struct intel_qep *qep = counter->priv;
- u32 max;
- int ret;
+ int ret = 0;
- ret = kstrtou32(buf, 0, &max);
- if (ret < 0)
- return ret;
+ /* Intel QEP ceiling configuration only supports 32-bit values */
+ if (max != (u32)max)
+ return -ERANGE;
mutex_lock(&qep->lock);
if (qep->enabled) {
@@ -216,34 +204,28 @@ static ssize_t ceiling_write(struct counter_device *counter,
pm_runtime_get_sync(qep->dev);
intel_qep_writel(qep, INTEL_QEPMAX, max);
pm_runtime_put(qep->dev);
- ret = len;
out:
mutex_unlock(&qep->lock);
return ret;
}
-static ssize_t enable_read(struct counter_device *counter,
- struct counter_count *count,
- void *priv, char *buf)
+static int intel_qep_enable_read(struct counter_device *counter,
+ struct counter_count *count, u8 *enable)
{
struct intel_qep *qep = counter->priv;
- return sysfs_emit(buf, "%u\n", qep->enabled);
+ *enable = qep->enabled;
+
+ return 0;
}
-static ssize_t enable_write(struct counter_device *counter,
- struct counter_count *count,
- void *priv, const char *buf, size_t len)
+static int intel_qep_enable_write(struct counter_device *counter,
+ struct counter_count *count, u8 val)
{
struct intel_qep *qep = counter->priv;
u32 reg;
- bool val, changed;
- int ret;
-
- ret = kstrtobool(buf, &val);
- if (ret)
- return ret;
+ bool changed;
mutex_lock(&qep->lock);
changed = val ^ qep->enabled;
@@ -267,12 +249,12 @@ static ssize_t enable_write(struct counter_device *counter,
out:
mutex_unlock(&qep->lock);
- return len;
+ return 0;
}
-static ssize_t spike_filter_ns_read(struct counter_device *counter,
- struct counter_count *count,
- void *priv, char *buf)
+static int intel_qep_spike_filter_ns_read(struct counter_device *counter,
+ struct counter_count *count,
+ u64 *length)
{
struct intel_qep *qep = counter->priv;
u32 reg;
@@ -281,33 +263,31 @@ static ssize_t spike_filter_ns_read(struct counter_device *counter,
reg = intel_qep_readl(qep, INTEL_QEPCON);
if (!(reg & INTEL_QEPCON_FLT_EN)) {
pm_runtime_put(qep->dev);
- return sysfs_emit(buf, "0\n");
+ return 0;
}
reg = INTEL_QEPFLT_MAX_COUNT(intel_qep_readl(qep, INTEL_QEPFLT));
pm_runtime_put(qep->dev);
- return sysfs_emit(buf, "%u\n", (reg + 2) * INTEL_QEP_CLK_PERIOD_NS);
+ *length = (reg + 2) * INTEL_QEP_CLK_PERIOD_NS;
+
+ return 0;
}
-static ssize_t spike_filter_ns_write(struct counter_device *counter,
- struct counter_count *count,
- void *priv, const char *buf, size_t len)
+static int intel_qep_spike_filter_ns_write(struct counter_device *counter,
+ struct counter_count *count,
+ u64 length)
{
struct intel_qep *qep = counter->priv;
- u32 reg, length;
+ u32 reg;
bool enable;
- int ret;
-
- ret = kstrtou32(buf, 0, &length);
- if (ret < 0)
- return ret;
+ int ret = 0;
/*
* Spike filter length is (MAX_COUNT + 2) clock periods.
* Disable filter when userspace writes 0, enable for valid
* nanoseconds values and error out otherwise.
*/
- length /= INTEL_QEP_CLK_PERIOD_NS;
+ do_div(length, INTEL_QEP_CLK_PERIOD_NS);
if (length == 0) {
enable = false;
length = 0;
@@ -336,16 +316,15 @@ static ssize_t spike_filter_ns_write(struct counter_device *counter,
intel_qep_writel(qep, INTEL_QEPFLT, length);
intel_qep_writel(qep, INTEL_QEPCON, reg);
pm_runtime_put(qep->dev);
- ret = len;
out:
mutex_unlock(&qep->lock);
return ret;
}
-static ssize_t preset_enable_read(struct counter_device *counter,
- struct counter_count *count,
- void *priv, char *buf)
+static int intel_qep_preset_enable_read(struct counter_device *counter,
+ struct counter_count *count,
+ u8 *preset_enable)
{
struct intel_qep *qep = counter->priv;
u32 reg;
@@ -353,21 +332,18 @@ static ssize_t preset_enable_read(struct counter_device *counter,
pm_runtime_get_sync(qep->dev);
reg = intel_qep_readl(qep, INTEL_QEPCON);
pm_runtime_put(qep->dev);
- return sysfs_emit(buf, "%u\n", !(reg & INTEL_QEPCON_COUNT_RST_MODE));
+
+ *preset_enable = !(reg & INTEL_QEPCON_COUNT_RST_MODE);
+
+ return 0;
}
-static ssize_t preset_enable_write(struct counter_device *counter,
- struct counter_count *count,
- void *priv, const char *buf, size_t len)
+static int intel_qep_preset_enable_write(struct counter_device *counter,
+ struct counter_count *count, u8 val)
{
struct intel_qep *qep = counter->priv;
u32 reg;
- bool val;
- int ret;
-
- ret = kstrtobool(buf, &val);
- if (ret)
- return ret;
+ int ret = 0;
mutex_lock(&qep->lock);
if (qep->enabled) {
@@ -384,7 +360,6 @@ static ssize_t preset_enable_write(struct counter_device *counter,
intel_qep_writel(qep, INTEL_QEPCON, reg);
pm_runtime_put(qep->dev);
- ret = len;
out:
mutex_unlock(&qep->lock);
@@ -392,11 +367,14 @@ static ssize_t preset_enable_write(struct counter_device *counter,
return ret;
}
-static const struct counter_count_ext intel_qep_count_ext[] = {
- INTEL_QEP_COUNTER_EXT_RW(ceiling),
- INTEL_QEP_COUNTER_EXT_RW(enable),
- INTEL_QEP_COUNTER_EXT_RW(spike_filter_ns),
- INTEL_QEP_COUNTER_EXT_RW(preset_enable)
+static struct counter_comp intel_qep_count_ext[] = {
+ COUNTER_COMP_ENABLE(intel_qep_enable_read, intel_qep_enable_write),
+ COUNTER_COMP_CEILING(intel_qep_ceiling_read, intel_qep_ceiling_write),
+ COUNTER_COMP_PRESET_ENABLE(intel_qep_preset_enable_read,
+ intel_qep_preset_enable_write),
+ COUNTER_COMP_COUNT_U64("spike_filter_ns",
+ intel_qep_spike_filter_ns_read,
+ intel_qep_spike_filter_ns_write),
};
static struct counter_count intel_qep_counter_count[] = {
diff --git a/drivers/counter/interrupt-cnt.c b/drivers/counter/interrupt-cnt.c
index 1de4243db488..8514a87fcbee 100644
--- a/drivers/counter/interrupt-cnt.c
+++ b/drivers/counter/interrupt-cnt.c
@@ -10,6 +10,7 @@
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/types.h>
#define INTERRUPT_CNT_NAME "interrupt-cnt"
@@ -33,30 +34,23 @@ static irqreturn_t interrupt_cnt_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static ssize_t interrupt_cnt_enable_read(struct counter_device *counter,
- struct counter_count *count,
- void *private, char *buf)
+static int interrupt_cnt_enable_read(struct counter_device *counter,
+ struct counter_count *count, u8 *enable)
{
struct interrupt_cnt_priv *priv = counter->priv;
- return sysfs_emit(buf, "%d\n", priv->enabled);
+ *enable = priv->enabled;
+
+ return 0;
}
-static ssize_t interrupt_cnt_enable_write(struct counter_device *counter,
- struct counter_count *count,
- void *private, const char *buf,
- size_t len)
+static int interrupt_cnt_enable_write(struct counter_device *counter,
+ struct counter_count *count, u8 enable)
{
struct interrupt_cnt_priv *priv = counter->priv;
- bool enable;
- ssize_t ret;
-
- ret = kstrtobool(buf, &enable);
- if (ret)
- return ret;
if (priv->enabled == enable)
- return len;
+ return 0;
if (enable) {
priv->enabled = true;
@@ -66,33 +60,30 @@ static ssize_t interrupt_cnt_enable_write(struct counter_device *counter,
priv->enabled = false;
}
- return len;
+ return 0;
}
-static const struct counter_count_ext interrupt_cnt_ext[] = {
- {
- .name = "enable",
- .read = interrupt_cnt_enable_read,
- .write = interrupt_cnt_enable_write,
- },
+static struct counter_comp interrupt_cnt_ext[] = {
+ COUNTER_COMP_ENABLE(interrupt_cnt_enable_read,
+ interrupt_cnt_enable_write),
};
static const enum counter_synapse_action interrupt_cnt_synapse_actions[] = {
COUNTER_SYNAPSE_ACTION_RISING_EDGE,
};
-static int interrupt_cnt_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t *action)
+static int interrupt_cnt_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
- *action = 0;
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
return 0;
}
static int interrupt_cnt_read(struct counter_device *counter,
- struct counter_count *count, unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct interrupt_cnt_priv *priv = counter->priv;
@@ -102,8 +93,7 @@ static int interrupt_cnt_read(struct counter_device *counter,
}
static int interrupt_cnt_write(struct counter_device *counter,
- struct counter_count *count,
- const unsigned long val)
+ struct counter_count *count, const u64 val)
{
struct interrupt_cnt_priv *priv = counter->priv;
@@ -119,11 +109,11 @@ static const enum counter_function interrupt_cnt_functions[] = {
COUNTER_FUNCTION_INCREASE,
};
-static int interrupt_cnt_function_get(struct counter_device *counter,
- struct counter_count *count,
- size_t *function)
+static int interrupt_cnt_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
- *function = 0;
+ *function = COUNTER_FUNCTION_INCREASE;
return 0;
}
@@ -148,10 +138,10 @@ static int interrupt_cnt_signal_read(struct counter_device *counter,
}
static const struct counter_ops interrupt_cnt_ops = {
- .action_get = interrupt_cnt_action_get,
+ .action_read = interrupt_cnt_action_read,
.count_read = interrupt_cnt_read,
.count_write = interrupt_cnt_write,
- .function_get = interrupt_cnt_function_get,
+ .function_read = interrupt_cnt_function_read,
.signal_read = interrupt_cnt_signal_read,
};
diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c
index 22563dcded75..4edfe1f8fff7 100644
--- a/drivers/counter/microchip-tcb-capture.c
+++ b/drivers/counter/microchip-tcb-capture.c
@@ -31,28 +31,16 @@ struct mchp_tc_data {
int channel[2];
};
-enum mchp_tc_count_function {
- MCHP_TC_FUNCTION_INCREASE,
- MCHP_TC_FUNCTION_QUADRATURE,
-};
-
static const enum counter_function mchp_tc_count_functions[] = {
- [MCHP_TC_FUNCTION_INCREASE] = COUNTER_FUNCTION_INCREASE,
- [MCHP_TC_FUNCTION_QUADRATURE] = COUNTER_FUNCTION_QUADRATURE_X4,
-};
-
-enum mchp_tc_synapse_action {
- MCHP_TC_SYNAPSE_ACTION_NONE = 0,
- MCHP_TC_SYNAPSE_ACTION_RISING_EDGE,
- MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE,
- MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE
+ COUNTER_FUNCTION_INCREASE,
+ COUNTER_FUNCTION_QUADRATURE_X4,
};
static const enum counter_synapse_action mchp_tc_synapse_actions[] = {
- [MCHP_TC_SYNAPSE_ACTION_NONE] = COUNTER_SYNAPSE_ACTION_NONE,
- [MCHP_TC_SYNAPSE_ACTION_RISING_EDGE] = COUNTER_SYNAPSE_ACTION_RISING_EDGE,
- [MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE] = COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
- [MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE] = COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
+ COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_RISING_EDGE,
+ COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
+ COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
};
static struct counter_signal mchp_tc_count_signals[] = {
@@ -79,23 +67,23 @@ static struct counter_synapse mchp_tc_count_synapses[] = {
}
};
-static int mchp_tc_count_function_get(struct counter_device *counter,
- struct counter_count *count,
- size_t *function)
+static int mchp_tc_count_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
struct mchp_tc_data *const priv = counter->priv;
if (priv->qdec_mode)
- *function = MCHP_TC_FUNCTION_QUADRATURE;
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
else
- *function = MCHP_TC_FUNCTION_INCREASE;
+ *function = COUNTER_FUNCTION_INCREASE;
return 0;
}
-static int mchp_tc_count_function_set(struct counter_device *counter,
- struct counter_count *count,
- size_t function)
+static int mchp_tc_count_function_write(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function function)
{
struct mchp_tc_data *const priv = counter->priv;
u32 bmr, cmr;
@@ -107,7 +95,7 @@ static int mchp_tc_count_function_set(struct counter_device *counter,
cmr &= ~ATMEL_TC_WAVE;
switch (function) {
- case MCHP_TC_FUNCTION_INCREASE:
+ case COUNTER_FUNCTION_INCREASE:
priv->qdec_mode = 0;
/* Set highest rate based on whether soc has gclk or not */
bmr &= ~(ATMEL_TC_QDEN | ATMEL_TC_POSEN);
@@ -119,7 +107,7 @@ static int mchp_tc_count_function_set(struct counter_device *counter,
cmr |= ATMEL_TC_CMR_MASK;
cmr &= ~(ATMEL_TC_ABETRG | ATMEL_TC_XC0);
break;
- case MCHP_TC_FUNCTION_QUADRATURE:
+ case COUNTER_FUNCTION_QUADRATURE_X4:
if (!priv->tc_cfg->has_qdec)
return -EINVAL;
/* In QDEC mode settings both channels 0 and 1 are required */
@@ -175,10 +163,10 @@ static int mchp_tc_count_signal_read(struct counter_device *counter,
return 0;
}
-static int mchp_tc_count_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t *action)
+static int mchp_tc_count_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
struct mchp_tc_data *const priv = counter->priv;
u32 cmr;
@@ -198,26 +186,26 @@ static int mchp_tc_count_action_get(struct counter_device *counter,
switch (cmr & ATMEL_TC_ETRGEDG) {
default:
- *action = MCHP_TC_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
break;
case ATMEL_TC_ETRGEDG_RISING:
- *action = MCHP_TC_SYNAPSE_ACTION_RISING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
break;
case ATMEL_TC_ETRGEDG_FALLING:
- *action = MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_FALLING_EDGE;
break;
case ATMEL_TC_ETRGEDG_BOTH:
- *action = MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
break;
}
return 0;
}
-static int mchp_tc_count_action_set(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t action)
+static int mchp_tc_count_action_write(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action action)
{
struct mchp_tc_data *const priv = counter->priv;
u32 edge = ATMEL_TC_ETRGEDG_NONE;
@@ -227,16 +215,16 @@ static int mchp_tc_count_action_set(struct counter_device *counter,
return -EINVAL;
switch (action) {
- case MCHP_TC_SYNAPSE_ACTION_NONE:
+ case COUNTER_SYNAPSE_ACTION_NONE:
edge = ATMEL_TC_ETRGEDG_NONE;
break;
- case MCHP_TC_SYNAPSE_ACTION_RISING_EDGE:
+ case COUNTER_SYNAPSE_ACTION_RISING_EDGE:
edge = ATMEL_TC_ETRGEDG_RISING;
break;
- case MCHP_TC_SYNAPSE_ACTION_FALLING_EDGE:
+ case COUNTER_SYNAPSE_ACTION_FALLING_EDGE:
edge = ATMEL_TC_ETRGEDG_FALLING;
break;
- case MCHP_TC_SYNAPSE_ACTION_BOTH_EDGE:
+ case COUNTER_SYNAPSE_ACTION_BOTH_EDGES:
edge = ATMEL_TC_ETRGEDG_BOTH;
break;
default:
@@ -250,8 +238,7 @@ static int mchp_tc_count_action_set(struct counter_device *counter,
}
static int mchp_tc_count_read(struct counter_device *counter,
- struct counter_count *count,
- unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct mchp_tc_data *const priv = counter->priv;
u32 cnt;
@@ -274,12 +261,12 @@ static struct counter_count mchp_tc_counts[] = {
};
static const struct counter_ops mchp_tc_ops = {
- .signal_read = mchp_tc_count_signal_read,
- .count_read = mchp_tc_count_read,
- .function_get = mchp_tc_count_function_get,
- .function_set = mchp_tc_count_function_set,
- .action_get = mchp_tc_count_action_get,
- .action_set = mchp_tc_count_action_set
+ .signal_read = mchp_tc_count_signal_read,
+ .count_read = mchp_tc_count_read,
+ .function_read = mchp_tc_count_function_read,
+ .function_write = mchp_tc_count_function_write,
+ .action_read = mchp_tc_count_action_read,
+ .action_write = mchp_tc_count_action_write
};
static const struct atmel_tcb_config tcb_rm9200_config = {
diff --git a/drivers/counter/stm32-lptimer-cnt.c b/drivers/counter/stm32-lptimer-cnt.c
index fa7f86cf0ea3..637b3f0b4fa3 100644
--- a/drivers/counter/stm32-lptimer-cnt.c
+++ b/drivers/counter/stm32-lptimer-cnt.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
+#include <linux/types.h>
struct stm32_lptim_cnt {
struct counter_device counter;
@@ -107,11 +108,7 @@ static int stm32_lptim_setup(struct stm32_lptim_cnt *priv, int enable)
return regmap_update_bits(priv->regmap, STM32_LPTIM_CFGR, mask, val);
}
-/**
- * enum stm32_lptim_cnt_function - enumerates LPTimer counter & encoder modes
- * @STM32_LPTIM_COUNTER_INCREASE: up count on IN1 rising, falling or both edges
- * @STM32_LPTIM_ENCODER_BOTH_EDGE: count on both edges (IN1 & IN2 quadrature)
- *
+/*
* In non-quadrature mode, device counts up on active edge.
* In quadrature mode, encoder counting scenarios are as follows:
* +---------+----------+--------------------+--------------------+
@@ -129,33 +126,20 @@ static int stm32_lptim_setup(struct stm32_lptim_cnt *priv, int enable)
* | edges | Low -> | Up | Down | Down | Up |
* +---------+----------+----------+---------+----------+---------+
*/
-enum stm32_lptim_cnt_function {
- STM32_LPTIM_COUNTER_INCREASE,
- STM32_LPTIM_ENCODER_BOTH_EDGE,
-};
-
static const enum counter_function stm32_lptim_cnt_functions[] = {
- [STM32_LPTIM_COUNTER_INCREASE] = COUNTER_FUNCTION_INCREASE,
- [STM32_LPTIM_ENCODER_BOTH_EDGE] = COUNTER_FUNCTION_QUADRATURE_X4,
-};
-
-enum stm32_lptim_synapse_action {
- STM32_LPTIM_SYNAPSE_ACTION_RISING_EDGE,
- STM32_LPTIM_SYNAPSE_ACTION_FALLING_EDGE,
- STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES,
- STM32_LPTIM_SYNAPSE_ACTION_NONE,
+ COUNTER_FUNCTION_INCREASE,
+ COUNTER_FUNCTION_QUADRATURE_X4,
};
static const enum counter_synapse_action stm32_lptim_cnt_synapse_actions[] = {
- /* Index must match with stm32_lptim_cnt_polarity[] (priv->polarity) */
- [STM32_LPTIM_SYNAPSE_ACTION_RISING_EDGE] = COUNTER_SYNAPSE_ACTION_RISING_EDGE,
- [STM32_LPTIM_SYNAPSE_ACTION_FALLING_EDGE] = COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
- [STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES] = COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
- [STM32_LPTIM_SYNAPSE_ACTION_NONE] = COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_RISING_EDGE,
+ COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
+ COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
+ COUNTER_SYNAPSE_ACTION_NONE,
};
static int stm32_lptim_cnt_read(struct counter_device *counter,
- struct counter_count *count, unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct stm32_lptim_cnt *const priv = counter->priv;
u32 cnt;
@@ -170,28 +154,28 @@ static int stm32_lptim_cnt_read(struct counter_device *counter,
return 0;
}
-static int stm32_lptim_cnt_function_get(struct counter_device *counter,
- struct counter_count *count,
- size_t *function)
+static int stm32_lptim_cnt_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
struct stm32_lptim_cnt *const priv = counter->priv;
if (!priv->quadrature_mode) {
- *function = STM32_LPTIM_COUNTER_INCREASE;
+ *function = COUNTER_FUNCTION_INCREASE;
return 0;
}
- if (priv->polarity == STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES) {
- *function = STM32_LPTIM_ENCODER_BOTH_EDGE;
+ if (priv->polarity == STM32_LPTIM_CKPOL_BOTH_EDGES) {
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
return 0;
}
return -EINVAL;
}
-static int stm32_lptim_cnt_function_set(struct counter_device *counter,
- struct counter_count *count,
- size_t function)
+static int stm32_lptim_cnt_function_write(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function function)
{
struct stm32_lptim_cnt *const priv = counter->priv;
@@ -199,12 +183,12 @@ static int stm32_lptim_cnt_function_set(struct counter_device *counter,
return -EBUSY;
switch (function) {
- case STM32_LPTIM_COUNTER_INCREASE:
+ case COUNTER_FUNCTION_INCREASE:
priv->quadrature_mode = 0;
return 0;
- case STM32_LPTIM_ENCODER_BOTH_EDGE:
+ case COUNTER_FUNCTION_QUADRATURE_X4:
priv->quadrature_mode = 1;
- priv->polarity = STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES;
+ priv->polarity = STM32_LPTIM_CKPOL_BOTH_EDGES;
return 0;
default:
/* should never reach this path */
@@ -212,9 +196,9 @@ static int stm32_lptim_cnt_function_set(struct counter_device *counter,
}
}
-static ssize_t stm32_lptim_cnt_enable_read(struct counter_device *counter,
- struct counter_count *count,
- void *private, char *buf)
+static int stm32_lptim_cnt_enable_read(struct counter_device *counter,
+ struct counter_count *count,
+ u8 *enable)
{
struct stm32_lptim_cnt *const priv = counter->priv;
int ret;
@@ -223,22 +207,18 @@ static ssize_t stm32_lptim_cnt_enable_read(struct counter_device *counter,
if (ret < 0)
return ret;
- return scnprintf(buf, PAGE_SIZE, "%u\n", ret);
+ *enable = ret;
+
+ return 0;
}
-static ssize_t stm32_lptim_cnt_enable_write(struct counter_device *counter,
- struct counter_count *count,
- void *private,
- const char *buf, size_t len)
+static int stm32_lptim_cnt_enable_write(struct counter_device *counter,
+ struct counter_count *count,
+ u8 enable)
{
struct stm32_lptim_cnt *const priv = counter->priv;
- bool enable;
int ret;
- ret = kstrtobool(buf, &enable);
- if (ret)
- return ret;
-
/* Check nobody uses the timer, or already disabled/enabled */
ret = stm32_lptim_is_enabled(priv);
if ((ret < 0) || (!ret && !enable))
@@ -254,78 +234,81 @@ static ssize_t stm32_lptim_cnt_enable_write(struct counter_device *counter,
if (ret)
return ret;
- return len;
+ return 0;
}
-static ssize_t stm32_lptim_cnt_ceiling_read(struct counter_device *counter,
- struct counter_count *count,
- void *private, char *buf)
+static int stm32_lptim_cnt_ceiling_read(struct counter_device *counter,
+ struct counter_count *count,
+ u64 *ceiling)
{
struct stm32_lptim_cnt *const priv = counter->priv;
- return snprintf(buf, PAGE_SIZE, "%u\n", priv->ceiling);
+ *ceiling = priv->ceiling;
+
+ return 0;
}
-static ssize_t stm32_lptim_cnt_ceiling_write(struct counter_device *counter,
- struct counter_count *count,
- void *private,
- const char *buf, size_t len)
+static int stm32_lptim_cnt_ceiling_write(struct counter_device *counter,
+ struct counter_count *count,
+ u64 ceiling)
{
struct stm32_lptim_cnt *const priv = counter->priv;
- unsigned int ceiling;
- int ret;
if (stm32_lptim_is_enabled(priv))
return -EBUSY;
- ret = kstrtouint(buf, 0, &ceiling);
- if (ret)
- return ret;
-
if (ceiling > STM32_LPTIM_MAX_ARR)
return -ERANGE;
priv->ceiling = ceiling;
- return len;
+ return 0;
}
-static const struct counter_count_ext stm32_lptim_cnt_ext[] = {
- {
- .name = "enable",
- .read = stm32_lptim_cnt_enable_read,
- .write = stm32_lptim_cnt_enable_write
- },
- {
- .name = "ceiling",
- .read = stm32_lptim_cnt_ceiling_read,
- .write = stm32_lptim_cnt_ceiling_write
- },
+static struct counter_comp stm32_lptim_cnt_ext[] = {
+ COUNTER_COMP_ENABLE(stm32_lptim_cnt_enable_read,
+ stm32_lptim_cnt_enable_write),
+ COUNTER_COMP_CEILING(stm32_lptim_cnt_ceiling_read,
+ stm32_lptim_cnt_ceiling_write),
};
-static int stm32_lptim_cnt_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t *action)
+static int stm32_lptim_cnt_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
struct stm32_lptim_cnt *const priv = counter->priv;
- size_t function;
+ enum counter_function function;
int err;
- err = stm32_lptim_cnt_function_get(counter, count, &function);
+ err = stm32_lptim_cnt_function_read(counter, count, &function);
if (err)
return err;
switch (function) {
- case STM32_LPTIM_COUNTER_INCREASE:
+ case COUNTER_FUNCTION_INCREASE:
/* LP Timer acts as up-counter on input 1 */
- if (synapse->signal->id == count->synapses[0].signal->id)
- *action = priv->polarity;
- else
- *action = STM32_LPTIM_SYNAPSE_ACTION_NONE;
- return 0;
- case STM32_LPTIM_ENCODER_BOTH_EDGE:
- *action = priv->polarity;
+ if (synapse->signal->id != count->synapses[0].signal->id) {
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
+ return 0;
+ }
+
+ switch (priv->polarity) {
+ case STM32_LPTIM_CKPOL_RISING_EDGE:
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
+ return 0;
+ case STM32_LPTIM_CKPOL_FALLING_EDGE:
+ *action = COUNTER_SYNAPSE_ACTION_FALLING_EDGE;
+ return 0;
+ case STM32_LPTIM_CKPOL_BOTH_EDGES:
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
+ return 0;
+ default:
+ /* should never reach this path */
+ return -EINVAL;
+ }
+ case COUNTER_FUNCTION_QUADRATURE_X4:
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
default:
/* should never reach this path */
@@ -333,43 +316,48 @@ static int stm32_lptim_cnt_action_get(struct counter_device *counter,
}
}
-static int stm32_lptim_cnt_action_set(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t action)
+static int stm32_lptim_cnt_action_write(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action action)
{
struct stm32_lptim_cnt *const priv = counter->priv;
- size_t function;
+ enum counter_function function;
int err;
if (stm32_lptim_is_enabled(priv))
return -EBUSY;
- err = stm32_lptim_cnt_function_get(counter, count, &function);
+ err = stm32_lptim_cnt_function_read(counter, count, &function);
if (err)
return err;
/* only set polarity when in counter mode (on input 1) */
- if (function == STM32_LPTIM_COUNTER_INCREASE
- && synapse->signal->id == count->synapses[0].signal->id) {
- switch (action) {
- case STM32_LPTIM_SYNAPSE_ACTION_RISING_EDGE:
- case STM32_LPTIM_SYNAPSE_ACTION_FALLING_EDGE:
- case STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES:
- priv->polarity = action;
- return 0;
- }
- }
+ if (function != COUNTER_FUNCTION_INCREASE
+ || synapse->signal->id != count->synapses[0].signal->id)
+ return -EINVAL;
- return -EINVAL;
+ switch (action) {
+ case COUNTER_SYNAPSE_ACTION_RISING_EDGE:
+ priv->polarity = STM32_LPTIM_CKPOL_RISING_EDGE;
+ return 0;
+ case COUNTER_SYNAPSE_ACTION_FALLING_EDGE:
+ priv->polarity = STM32_LPTIM_CKPOL_FALLING_EDGE;
+ return 0;
+ case COUNTER_SYNAPSE_ACTION_BOTH_EDGES:
+ priv->polarity = STM32_LPTIM_CKPOL_BOTH_EDGES;
+ return 0;
+ default:
+ return -EINVAL;
+ }
}
static const struct counter_ops stm32_lptim_cnt_ops = {
.count_read = stm32_lptim_cnt_read,
- .function_get = stm32_lptim_cnt_function_get,
- .function_set = stm32_lptim_cnt_function_set,
- .action_get = stm32_lptim_cnt_action_get,
- .action_set = stm32_lptim_cnt_action_set,
+ .function_read = stm32_lptim_cnt_function_read,
+ .function_write = stm32_lptim_cnt_function_write,
+ .action_read = stm32_lptim_cnt_action_read,
+ .action_write = stm32_lptim_cnt_action_write,
};
static struct counter_signal stm32_lptim_cnt_signals[] = {
diff --git a/drivers/counter/stm32-timer-cnt.c b/drivers/counter/stm32-timer-cnt.c
index 3fb0debd7425..0546e932db0c 100644
--- a/drivers/counter/stm32-timer-cnt.c
+++ b/drivers/counter/stm32-timer-cnt.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
+#include <linux/types.h>
#define TIM_CCMR_CCXS (BIT(8) | BIT(0))
#define TIM_CCMR_MASK (TIM_CCMR_CC1S | TIM_CCMR_CC2S | \
@@ -36,29 +37,15 @@ struct stm32_timer_cnt {
struct stm32_timer_regs bak;
};
-/**
- * enum stm32_count_function - enumerates stm32 timer counter encoder modes
- * @STM32_COUNT_SLAVE_MODE_DISABLED: counts on internal clock when CEN=1
- * @STM32_COUNT_ENCODER_MODE_1: counts TI1FP1 edges, depending on TI2FP2 level
- * @STM32_COUNT_ENCODER_MODE_2: counts TI2FP2 edges, depending on TI1FP1 level
- * @STM32_COUNT_ENCODER_MODE_3: counts on both TI1FP1 and TI2FP2 edges
- */
-enum stm32_count_function {
- STM32_COUNT_SLAVE_MODE_DISABLED,
- STM32_COUNT_ENCODER_MODE_1,
- STM32_COUNT_ENCODER_MODE_2,
- STM32_COUNT_ENCODER_MODE_3,
-};
-
static const enum counter_function stm32_count_functions[] = {
- [STM32_COUNT_SLAVE_MODE_DISABLED] = COUNTER_FUNCTION_INCREASE,
- [STM32_COUNT_ENCODER_MODE_1] = COUNTER_FUNCTION_QUADRATURE_X2_A,
- [STM32_COUNT_ENCODER_MODE_2] = COUNTER_FUNCTION_QUADRATURE_X2_B,
- [STM32_COUNT_ENCODER_MODE_3] = COUNTER_FUNCTION_QUADRATURE_X4,
+ COUNTER_FUNCTION_INCREASE,
+ COUNTER_FUNCTION_QUADRATURE_X2_A,
+ COUNTER_FUNCTION_QUADRATURE_X2_B,
+ COUNTER_FUNCTION_QUADRATURE_X4,
};
static int stm32_count_read(struct counter_device *counter,
- struct counter_count *count, unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct stm32_timer_cnt *const priv = counter->priv;
u32 cnt;
@@ -70,8 +57,7 @@ static int stm32_count_read(struct counter_device *counter,
}
static int stm32_count_write(struct counter_device *counter,
- struct counter_count *count,
- const unsigned long val)
+ struct counter_count *count, const u64 val)
{
struct stm32_timer_cnt *const priv = counter->priv;
u32 ceiling;
@@ -83,9 +69,9 @@ static int stm32_count_write(struct counter_device *counter,
return regmap_write(priv->regmap, TIM_CNT, val);
}
-static int stm32_count_function_get(struct counter_device *counter,
- struct counter_count *count,
- size_t *function)
+static int stm32_count_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
struct stm32_timer_cnt *const priv = counter->priv;
u32 smcr;
@@ -93,42 +79,42 @@ static int stm32_count_function_get(struct counter_device *counter,
regmap_read(priv->regmap, TIM_SMCR, &smcr);
switch (smcr & TIM_SMCR_SMS) {
- case 0:
- *function = STM32_COUNT_SLAVE_MODE_DISABLED;
+ case TIM_SMCR_SMS_SLAVE_MODE_DISABLED:
+ *function = COUNTER_FUNCTION_INCREASE;
return 0;
- case 1:
- *function = STM32_COUNT_ENCODER_MODE_1;
+ case TIM_SMCR_SMS_ENCODER_MODE_1:
+ *function = COUNTER_FUNCTION_QUADRATURE_X2_A;
return 0;
- case 2:
- *function = STM32_COUNT_ENCODER_MODE_2;
+ case TIM_SMCR_SMS_ENCODER_MODE_2:
+ *function = COUNTER_FUNCTION_QUADRATURE_X2_B;
return 0;
- case 3:
- *function = STM32_COUNT_ENCODER_MODE_3;
+ case TIM_SMCR_SMS_ENCODER_MODE_3:
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
return 0;
default:
return -EINVAL;
}
}
-static int stm32_count_function_set(struct counter_device *counter,
- struct counter_count *count,
- size_t function)
+static int stm32_count_function_write(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function function)
{
struct stm32_timer_cnt *const priv = counter->priv;
u32 cr1, sms;
switch (function) {
- case STM32_COUNT_SLAVE_MODE_DISABLED:
- sms = 0;
+ case COUNTER_FUNCTION_INCREASE:
+ sms = TIM_SMCR_SMS_SLAVE_MODE_DISABLED;
break;
- case STM32_COUNT_ENCODER_MODE_1:
- sms = 1;
+ case COUNTER_FUNCTION_QUADRATURE_X2_A:
+ sms = TIM_SMCR_SMS_ENCODER_MODE_1;
break;
- case STM32_COUNT_ENCODER_MODE_2:
- sms = 2;
+ case COUNTER_FUNCTION_QUADRATURE_X2_B:
+ sms = TIM_SMCR_SMS_ENCODER_MODE_2;
break;
- case STM32_COUNT_ENCODER_MODE_3:
- sms = 3;
+ case COUNTER_FUNCTION_QUADRATURE_X4:
+ sms = TIM_SMCR_SMS_ENCODER_MODE_3;
break;
default:
return -EINVAL;
@@ -150,44 +136,37 @@ static int stm32_count_function_set(struct counter_device *counter,
return 0;
}
-static ssize_t stm32_count_direction_read(struct counter_device *counter,
+static int stm32_count_direction_read(struct counter_device *counter,
struct counter_count *count,
- void *private, char *buf)
+ enum counter_count_direction *direction)
{
struct stm32_timer_cnt *const priv = counter->priv;
- const char *direction;
u32 cr1;
regmap_read(priv->regmap, TIM_CR1, &cr1);
- direction = (cr1 & TIM_CR1_DIR) ? "backward" : "forward";
+ *direction = (cr1 & TIM_CR1_DIR) ? COUNTER_COUNT_DIRECTION_BACKWARD :
+ COUNTER_COUNT_DIRECTION_FORWARD;
- return scnprintf(buf, PAGE_SIZE, "%s\n", direction);
+ return 0;
}
-static ssize_t stm32_count_ceiling_read(struct counter_device *counter,
- struct counter_count *count,
- void *private, char *buf)
+static int stm32_count_ceiling_read(struct counter_device *counter,
+ struct counter_count *count, u64 *ceiling)
{
struct stm32_timer_cnt *const priv = counter->priv;
u32 arr;
regmap_read(priv->regmap, TIM_ARR, &arr);
- return snprintf(buf, PAGE_SIZE, "%u\n", arr);
+ *ceiling = arr;
+
+ return 0;
}
-static ssize_t stm32_count_ceiling_write(struct counter_device *counter,
- struct counter_count *count,
- void *private,
- const char *buf, size_t len)
+static int stm32_count_ceiling_write(struct counter_device *counter,
+ struct counter_count *count, u64 ceiling)
{
struct stm32_timer_cnt *const priv = counter->priv;
- unsigned int ceiling;
- int ret;
-
- ret = kstrtouint(buf, 0, &ceiling);
- if (ret)
- return ret;
if (ceiling > priv->max_arr)
return -ERANGE;
@@ -196,34 +175,27 @@ static ssize_t stm32_count_ceiling_write(struct counter_device *counter,
regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0);
regmap_write(priv->regmap, TIM_ARR, ceiling);
- return len;
+ return 0;
}
-static ssize_t stm32_count_enable_read(struct counter_device *counter,
- struct counter_count *count,
- void *private, char *buf)
+static int stm32_count_enable_read(struct counter_device *counter,
+ struct counter_count *count, u8 *enable)
{
struct stm32_timer_cnt *const priv = counter->priv;
u32 cr1;
regmap_read(priv->regmap, TIM_CR1, &cr1);
- return scnprintf(buf, PAGE_SIZE, "%d\n", (bool)(cr1 & TIM_CR1_CEN));
+ *enable = cr1 & TIM_CR1_CEN;
+
+ return 0;
}
-static ssize_t stm32_count_enable_write(struct counter_device *counter,
- struct counter_count *count,
- void *private,
- const char *buf, size_t len)
+static int stm32_count_enable_write(struct counter_device *counter,
+ struct counter_count *count, u8 enable)
{
struct stm32_timer_cnt *const priv = counter->priv;
- int err;
u32 cr1;
- bool enable;
-
- err = kstrtobool(buf, &enable);
- if (err)
- return err;
if (enable) {
regmap_read(priv->regmap, TIM_CR1, &cr1);
@@ -242,70 +214,55 @@ static ssize_t stm32_count_enable_write(struct counter_device *counter,
/* Keep enabled state to properly handle low power states */
priv->enabled = enable;
- return len;
+ return 0;
}
-static const struct counter_count_ext stm32_count_ext[] = {
- {
- .name = "direction",
- .read = stm32_count_direction_read,
- },
- {
- .name = "enable",
- .read = stm32_count_enable_read,
- .write = stm32_count_enable_write
- },
- {
- .name = "ceiling",
- .read = stm32_count_ceiling_read,
- .write = stm32_count_ceiling_write
- },
-};
-
-enum stm32_synapse_action {
- STM32_SYNAPSE_ACTION_NONE,
- STM32_SYNAPSE_ACTION_BOTH_EDGES
+static struct counter_comp stm32_count_ext[] = {
+ COUNTER_COMP_DIRECTION(stm32_count_direction_read),
+ COUNTER_COMP_ENABLE(stm32_count_enable_read, stm32_count_enable_write),
+ COUNTER_COMP_CEILING(stm32_count_ceiling_read,
+ stm32_count_ceiling_write),
};
static const enum counter_synapse_action stm32_synapse_actions[] = {
- [STM32_SYNAPSE_ACTION_NONE] = COUNTER_SYNAPSE_ACTION_NONE,
- [STM32_SYNAPSE_ACTION_BOTH_EDGES] = COUNTER_SYNAPSE_ACTION_BOTH_EDGES
+ COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_BOTH_EDGES
};
-static int stm32_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse,
- size_t *action)
+static int stm32_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
- size_t function;
+ enum counter_function function;
int err;
- err = stm32_count_function_get(counter, count, &function);
+ err = stm32_count_function_read(counter, count, &function);
if (err)
return err;
switch (function) {
- case STM32_COUNT_SLAVE_MODE_DISABLED:
+ case COUNTER_FUNCTION_INCREASE:
/* counts on internal clock when CEN=1 */
- *action = STM32_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
return 0;
- case STM32_COUNT_ENCODER_MODE_1:
+ case COUNTER_FUNCTION_QUADRATURE_X2_A:
/* counts up/down on TI1FP1 edge depending on TI2FP2 level */
if (synapse->signal->id == count->synapses[0].signal->id)
- *action = STM32_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
else
- *action = STM32_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
return 0;
- case STM32_COUNT_ENCODER_MODE_2:
+ case COUNTER_FUNCTION_QUADRATURE_X2_B:
/* counts up/down on TI2FP2 edge depending on TI1FP1 level */
if (synapse->signal->id == count->synapses[1].signal->id)
- *action = STM32_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
else
- *action = STM32_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
return 0;
- case STM32_COUNT_ENCODER_MODE_3:
+ case COUNTER_FUNCTION_QUADRATURE_X4:
/* counts up/down on both TI1FP1 and TI2FP2 edges */
- *action = STM32_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
default:
return -EINVAL;
@@ -315,9 +272,9 @@ static int stm32_action_get(struct counter_device *counter,
static const struct counter_ops stm32_timer_cnt_ops = {
.count_read = stm32_count_read,
.count_write = stm32_count_write,
- .function_get = stm32_count_function_get,
- .function_set = stm32_count_function_set,
- .action_get = stm32_action_get,
+ .function_read = stm32_count_function_read,
+ .function_write = stm32_count_function_write,
+ .action_read = stm32_action_read,
};
static struct counter_signal stm32_signals[] = {
diff --git a/drivers/counter/ti-eqep.c b/drivers/counter/ti-eqep.c
index 94fe58bb3eab..09817c953f9a 100644
--- a/drivers/counter/ti-eqep.c
+++ b/drivers/counter/ti-eqep.c
@@ -13,6 +13,7 @@
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
+#include <linux/types.h>
/* 32-bit registers */
#define QPOSCNT 0x0
@@ -73,19 +74,13 @@ enum {
};
/* Position Counter Input Modes */
-enum {
+enum ti_eqep_count_func {
TI_EQEP_COUNT_FUNC_QUAD_COUNT,
TI_EQEP_COUNT_FUNC_DIR_COUNT,
TI_EQEP_COUNT_FUNC_UP_COUNT,
TI_EQEP_COUNT_FUNC_DOWN_COUNT,
};
-enum {
- TI_EQEP_SYNAPSE_ACTION_BOTH_EDGES,
- TI_EQEP_SYNAPSE_ACTION_RISING_EDGE,
- TI_EQEP_SYNAPSE_ACTION_NONE,
-};
-
struct ti_eqep_cnt {
struct counter_device counter;
struct regmap *regmap32;
@@ -93,7 +88,7 @@ struct ti_eqep_cnt {
};
static int ti_eqep_count_read(struct counter_device *counter,
- struct counter_count *count, unsigned long *val)
+ struct counter_count *count, u64 *val)
{
struct ti_eqep_cnt *priv = counter->priv;
u32 cnt;
@@ -105,7 +100,7 @@ static int ti_eqep_count_read(struct counter_device *counter,
}
static int ti_eqep_count_write(struct counter_device *counter,
- struct counter_count *count, unsigned long val)
+ struct counter_count *count, u64 val)
{
struct ti_eqep_cnt *priv = counter->priv;
u32 max;
@@ -117,64 +112,100 @@ static int ti_eqep_count_write(struct counter_device *counter,
return regmap_write(priv->regmap32, QPOSCNT, val);
}
-static int ti_eqep_function_get(struct counter_device *counter,
- struct counter_count *count, size_t *function)
+static int ti_eqep_function_read(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function)
{
struct ti_eqep_cnt *priv = counter->priv;
u32 qdecctl;
regmap_read(priv->regmap16, QDECCTL, &qdecctl);
- *function = (qdecctl & QDECCTL_QSRC) >> QDECCTL_QSRC_SHIFT;
+
+ switch ((qdecctl & QDECCTL_QSRC) >> QDECCTL_QSRC_SHIFT) {
+ case TI_EQEP_COUNT_FUNC_QUAD_COUNT:
+ *function = COUNTER_FUNCTION_QUADRATURE_X4;
+ break;
+ case TI_EQEP_COUNT_FUNC_DIR_COUNT:
+ *function = COUNTER_FUNCTION_PULSE_DIRECTION;
+ break;
+ case TI_EQEP_COUNT_FUNC_UP_COUNT:
+ *function = COUNTER_FUNCTION_INCREASE;
+ break;
+ case TI_EQEP_COUNT_FUNC_DOWN_COUNT:
+ *function = COUNTER_FUNCTION_DECREASE;
+ break;
+ }
return 0;
}
-static int ti_eqep_function_set(struct counter_device *counter,
- struct counter_count *count, size_t function)
+static int ti_eqep_function_write(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function function)
{
struct ti_eqep_cnt *priv = counter->priv;
+ enum ti_eqep_count_func qsrc;
+
+ switch (function) {
+ case COUNTER_FUNCTION_QUADRATURE_X4:
+ qsrc = TI_EQEP_COUNT_FUNC_QUAD_COUNT;
+ break;
+ case COUNTER_FUNCTION_PULSE_DIRECTION:
+ qsrc = TI_EQEP_COUNT_FUNC_DIR_COUNT;
+ break;
+ case COUNTER_FUNCTION_INCREASE:
+ qsrc = TI_EQEP_COUNT_FUNC_UP_COUNT;
+ break;
+ case COUNTER_FUNCTION_DECREASE:
+ qsrc = TI_EQEP_COUNT_FUNC_DOWN_COUNT;
+ break;
+ default:
+ /* should never reach this path */
+ return -EINVAL;
+ }
return regmap_write_bits(priv->regmap16, QDECCTL, QDECCTL_QSRC,
- function << QDECCTL_QSRC_SHIFT);
+ qsrc << QDECCTL_QSRC_SHIFT);
}
-static int ti_eqep_action_get(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse, size_t *action)
+static int ti_eqep_action_read(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action)
{
struct ti_eqep_cnt *priv = counter->priv;
- size_t function;
+ enum counter_function function;
u32 qdecctl;
int err;
- err = ti_eqep_function_get(counter, count, &function);
+ err = ti_eqep_function_read(counter, count, &function);
if (err)
return err;
switch (function) {
- case TI_EQEP_COUNT_FUNC_QUAD_COUNT:
+ case COUNTER_FUNCTION_QUADRATURE_X4:
/* In quadrature mode, the rising and falling edge of both
* QEPA and QEPB trigger QCLK.
*/
- *action = TI_EQEP_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
return 0;
- case TI_EQEP_COUNT_FUNC_DIR_COUNT:
+ case COUNTER_FUNCTION_PULSE_DIRECTION:
/* In direction-count mode only rising edge of QEPA is counted
* and QEPB gives direction.
*/
switch (synapse->signal->id) {
case TI_EQEP_SIGNAL_QEPA:
- *action = TI_EQEP_SYNAPSE_ACTION_RISING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
return 0;
case TI_EQEP_SIGNAL_QEPB:
- *action = TI_EQEP_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
return 0;
default:
/* should never reach this path */
return -EINVAL;
}
- case TI_EQEP_COUNT_FUNC_UP_COUNT:
- case TI_EQEP_COUNT_FUNC_DOWN_COUNT:
+ case COUNTER_FUNCTION_INCREASE:
+ case COUNTER_FUNCTION_DECREASE:
/* In up/down-count modes only QEPA is counted and QEPB is not
* used.
*/
@@ -185,12 +216,12 @@ static int ti_eqep_action_get(struct counter_device *counter,
return err;
if (qdecctl & QDECCTL_XCR)
- *action = TI_EQEP_SYNAPSE_ACTION_BOTH_EDGES;
+ *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES;
else
- *action = TI_EQEP_SYNAPSE_ACTION_RISING_EDGE;
+ *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE;
return 0;
case TI_EQEP_SIGNAL_QEPB:
- *action = TI_EQEP_SYNAPSE_ACTION_NONE;
+ *action = COUNTER_SYNAPSE_ACTION_NONE;
return 0;
default:
/* should never reach this path */
@@ -205,82 +236,67 @@ static int ti_eqep_action_get(struct counter_device *counter,
static const struct counter_ops ti_eqep_counter_ops = {
.count_read = ti_eqep_count_read,
.count_write = ti_eqep_count_write,
- .function_get = ti_eqep_function_get,
- .function_set = ti_eqep_function_set,
- .action_get = ti_eqep_action_get,
+ .function_read = ti_eqep_function_read,
+ .function_write = ti_eqep_function_write,
+ .action_read = ti_eqep_action_read,
};
-static ssize_t ti_eqep_position_ceiling_read(struct counter_device *counter,
- struct counter_count *count,
- void *ext_priv, char *buf)
+static int ti_eqep_position_ceiling_read(struct counter_device *counter,
+ struct counter_count *count,
+ u64 *ceiling)
{
struct ti_eqep_cnt *priv = counter->priv;
u32 qposmax;
regmap_read(priv->regmap32, QPOSMAX, &qposmax);
- return sprintf(buf, "%u\n", qposmax);
+ *ceiling = qposmax;
+
+ return 0;
}
-static ssize_t ti_eqep_position_ceiling_write(struct counter_device *counter,
- struct counter_count *count,
- void *ext_priv, const char *buf,
- size_t len)
+static int ti_eqep_position_ceiling_write(struct counter_device *counter,
+ struct counter_count *count,
+ u64 ceiling)
{
struct ti_eqep_cnt *priv = counter->priv;
- int err;
- u32 res;
- err = kstrtouint(buf, 0, &res);
- if (err < 0)
- return err;
+ if (ceiling != (u32)ceiling)
+ return -ERANGE;
- regmap_write(priv->regmap32, QPOSMAX, res);
+ regmap_write(priv->regmap32, QPOSMAX, ceiling);
- return len;
+ return 0;
}
-static ssize_t ti_eqep_position_enable_read(struct counter_device *counter,
- struct counter_count *count,
- void *ext_priv, char *buf)
+static int ti_eqep_position_enable_read(struct counter_device *counter,
+ struct counter_count *count, u8 *enable)
{
struct ti_eqep_cnt *priv = counter->priv;
u32 qepctl;
regmap_read(priv->regmap16, QEPCTL, &qepctl);
- return sprintf(buf, "%u\n", !!(qepctl & QEPCTL_PHEN));
+ *enable = !!(qepctl & QEPCTL_PHEN);
+
+ return 0;
}
-static ssize_t ti_eqep_position_enable_write(struct counter_device *counter,
- struct counter_count *count,
- void *ext_priv, const char *buf,
- size_t len)
+static int ti_eqep_position_enable_write(struct counter_device *counter,
+ struct counter_count *count, u8 enable)
{
struct ti_eqep_cnt *priv = counter->priv;
- int err;
- bool res;
-
- err = kstrtobool(buf, &res);
- if (err < 0)
- return err;
- regmap_write_bits(priv->regmap16, QEPCTL, QEPCTL_PHEN, res ? -1 : 0);
+ regmap_write_bits(priv->regmap16, QEPCTL, QEPCTL_PHEN, enable ? -1 : 0);
- return len;
+ return 0;
}
-static struct counter_count_ext ti_eqep_position_ext[] = {
- {
- .name = "ceiling",
- .read = ti_eqep_position_ceiling_read,
- .write = ti_eqep_position_ceiling_write,
- },
- {
- .name = "enable",
- .read = ti_eqep_position_enable_read,
- .write = ti_eqep_position_enable_write,
- },
+static struct counter_comp ti_eqep_position_ext[] = {
+ COUNTER_COMP_CEILING(ti_eqep_position_ceiling_read,
+ ti_eqep_position_ceiling_write),
+ COUNTER_COMP_ENABLE(ti_eqep_position_enable_read,
+ ti_eqep_position_enable_write),
};
static struct counter_signal ti_eqep_signals[] = {
@@ -295,16 +311,16 @@ static struct counter_signal ti_eqep_signals[] = {
};
static const enum counter_function ti_eqep_position_functions[] = {
- [TI_EQEP_COUNT_FUNC_QUAD_COUNT] = COUNTER_FUNCTION_QUADRATURE_X4,
- [TI_EQEP_COUNT_FUNC_DIR_COUNT] = COUNTER_FUNCTION_PULSE_DIRECTION,
- [TI_EQEP_COUNT_FUNC_UP_COUNT] = COUNTER_FUNCTION_INCREASE,
- [TI_EQEP_COUNT_FUNC_DOWN_COUNT] = COUNTER_FUNCTION_DECREASE,
+ COUNTER_FUNCTION_QUADRATURE_X4,
+ COUNTER_FUNCTION_PULSE_DIRECTION,
+ COUNTER_FUNCTION_INCREASE,
+ COUNTER_FUNCTION_DECREASE,
};
static const enum counter_synapse_action ti_eqep_position_synapse_actions[] = {
- [TI_EQEP_SYNAPSE_ACTION_BOTH_EDGES] = COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
- [TI_EQEP_SYNAPSE_ACTION_RISING_EDGE] = COUNTER_SYNAPSE_ACTION_RISING_EDGE,
- [TI_EQEP_SYNAPSE_ACTION_NONE] = COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
+ COUNTER_SYNAPSE_ACTION_RISING_EDGE,
+ COUNTER_SYNAPSE_ACTION_NONE,
};
static struct counter_synapse ti_eqep_position_synapses[] = {
diff --git a/drivers/firmware/efi/sysfb_efi.c b/drivers/firmware/efi/sysfb_efi.c
index 7ac757843dcf..24d6f6e08df8 100644
--- a/drivers/firmware/efi/sysfb_efi.c
+++ b/drivers/firmware/efi/sysfb_efi.c
@@ -274,6 +274,14 @@ static const struct dmi_system_id efifb_dmi_swap_width_height[] __initconst = {
"IdeaPad Duet 3 10IGL5"),
},
},
+ {
+ /* Lenovo Yoga Book X91F / X91L */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ /* Non exact match to match F + L versions */
+ DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
+ },
+ },
{},
};
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 8e3e98f13db4..54168134d9b9 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -99,7 +99,6 @@ static int armada_drm_bind(struct device *dev)
if (ret) {
dev_err(dev, "[" DRM_NAME ":%s] can't kick out simple-fb: %d\n",
__func__, ret);
- kfree(priv);
return ret;
}
diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 8768073794fb..6106fa7c4302 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -284,10 +284,17 @@ static const struct dmi_system_id orientation_data[] = {
DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Duet 3 10IGL5"),
},
.driver_data = (void *)&lcd1200x1920_rightside_up,
- }, { /* Lenovo Yoga Book X90F / X91F / X91L */
+ }, { /* Lenovo Yoga Book X90F / X90L */
.matches = {
- /* Non exact match to match all versions */
- DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
+ },
+ .driver_data = (void *)&lcd1200x1920_rightside_up,
+ }, { /* Lenovo Yoga Book X91F / X91L */
+ .matches = {
+ /* Non exact match to match F + L versions */
+ DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
},
.driver_data = (void *)&lcd1200x1920_rightside_up,
}, { /* OneGX1 Pro */
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 2601873e1546..26dd5a2bd502 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -307,9 +307,21 @@ static void configure_dual_link_mode(struct intel_encoder *encoder,
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
+ i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
u32 dss_ctl1;
- dss_ctl1 = intel_de_read(dev_priv, DSS_CTL1);
+ /* FIXME: Move all DSS handling to intel_vdsc.c */
+ if (DISPLAY_VER(dev_priv) >= 12) {
+ struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
+
+ dss_ctl1_reg = ICL_PIPE_DSS_CTL1(crtc->pipe);
+ dss_ctl2_reg = ICL_PIPE_DSS_CTL2(crtc->pipe);
+ } else {
+ dss_ctl1_reg = DSS_CTL1;
+ dss_ctl2_reg = DSS_CTL2;
+ }
+
+ dss_ctl1 = intel_de_read(dev_priv, dss_ctl1_reg);
dss_ctl1 |= SPLITTER_ENABLE;
dss_ctl1 &= ~OVERLAP_PIXELS_MASK;
dss_ctl1 |= OVERLAP_PIXELS(intel_dsi->pixel_overlap);
@@ -330,16 +342,16 @@ static void configure_dual_link_mode(struct intel_encoder *encoder,
dss_ctl1 &= ~LEFT_DL_BUF_TARGET_DEPTH_MASK;
dss_ctl1 |= LEFT_DL_BUF_TARGET_DEPTH(dl_buffer_depth);
- dss_ctl2 = intel_de_read(dev_priv, DSS_CTL2);
+ dss_ctl2 = intel_de_read(dev_priv, dss_ctl2_reg);
dss_ctl2 &= ~RIGHT_DL_BUF_TARGET_DEPTH_MASK;
dss_ctl2 |= RIGHT_DL_BUF_TARGET_DEPTH(dl_buffer_depth);
- intel_de_write(dev_priv, DSS_CTL2, dss_ctl2);
+ intel_de_write(dev_priv, dss_ctl2_reg, dss_ctl2);
} else {
/* Interleave */
dss_ctl1 |= DUAL_LINK_MODE_INTERLEAVE;
}
- intel_de_write(dev_priv, DSS_CTL1, dss_ctl1);
+ intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1);
}
/* aka DSI 8X clock */
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index f3c8f87d25ae..774d45142091 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -879,8 +879,9 @@ static int gen8_oa_read(struct i915_perf_stream *stream,
if (ret)
return ret;
- DRM_DEBUG("OA buffer overflow (exponent = %d): force restart\n",
- stream->period_exponent);
+ drm_dbg(&stream->perf->i915->drm,
+ "OA buffer overflow (exponent = %d): force restart\n",
+ stream->period_exponent);
stream->perf->ops.oa_disable(stream);
stream->perf->ops.oa_enable(stream);
@@ -1102,8 +1103,9 @@ static int gen7_oa_read(struct i915_perf_stream *stream,
if (ret)
return ret;
- DRM_DEBUG("OA buffer overflow (exponent = %d): force restart\n",
- stream->period_exponent);
+ drm_dbg(&stream->perf->i915->drm,
+ "OA buffer overflow (exponent = %d): force restart\n",
+ stream->period_exponent);
stream->perf->ops.oa_disable(stream);
stream->perf->ops.oa_enable(stream);
@@ -2857,7 +2859,8 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
int ret;
if (!props->engine) {
- DRM_DEBUG("OA engine not specified\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "OA engine not specified\n");
return -EINVAL;
}
@@ -2867,18 +2870,21 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
* IDs
*/
if (!perf->metrics_kobj) {
- DRM_DEBUG("OA metrics weren't advertised via sysfs\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "OA metrics weren't advertised via sysfs\n");
return -EINVAL;
}
if (!(props->sample_flags & SAMPLE_OA_REPORT) &&
(GRAPHICS_VER(perf->i915) < 12 || !stream->ctx)) {
- DRM_DEBUG("Only OA report sampling supported\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "Only OA report sampling supported\n");
return -EINVAL;
}
if (!perf->ops.enable_metric_set) {
- DRM_DEBUG("OA unit not supported\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "OA unit not supported\n");
return -ENODEV;
}
@@ -2888,12 +2894,14 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
* we currently only allow exclusive access
*/
if (perf->exclusive_stream) {
- DRM_DEBUG("OA unit already in use\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "OA unit already in use\n");
return -EBUSY;
}
if (!props->oa_format) {
- DRM_DEBUG("OA report format not specified\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "OA report format not specified\n");
return -EINVAL;
}
@@ -2923,20 +2931,23 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
if (stream->ctx) {
ret = oa_get_render_ctx_id(stream);
if (ret) {
- DRM_DEBUG("Invalid context id to filter with\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "Invalid context id to filter with\n");
return ret;
}
}
ret = alloc_noa_wait(stream);
if (ret) {
- DRM_DEBUG("Unable to allocate NOA wait batch buffer\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "Unable to allocate NOA wait batch buffer\n");
goto err_noa_wait_alloc;
}
stream->oa_config = i915_perf_get_oa_config(perf, props->metrics_set);
if (!stream->oa_config) {
- DRM_DEBUG("Invalid OA config id=%i\n", props->metrics_set);
+ drm_dbg(&stream->perf->i915->drm,
+ "Invalid OA config id=%i\n", props->metrics_set);
ret = -EINVAL;
goto err_config;
}
@@ -2967,11 +2978,13 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
ret = i915_perf_stream_enable_sync(stream);
if (ret) {
- DRM_DEBUG("Unable to enable metric set\n");
+ drm_dbg(&stream->perf->i915->drm,
+ "Unable to enable metric set\n");
goto err_enable;
}
- DRM_DEBUG("opening stream oa config uuid=%s\n",
+ drm_dbg(&stream->perf->i915->drm,
+ "opening stream oa config uuid=%s\n",
stream->oa_config->uuid);
hrtimer_init(&stream->poll_check_timer,
@@ -3423,7 +3436,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
specific_ctx = i915_gem_context_lookup(file_priv, ctx_handle);
if (IS_ERR(specific_ctx)) {
- DRM_DEBUG("Failed to look up context with ID %u for opening perf stream\n",
+ drm_dbg(&perf->i915->drm,
+ "Failed to look up context with ID %u for opening perf stream\n",
ctx_handle);
ret = PTR_ERR(specific_ctx);
goto err;
@@ -3457,7 +3471,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
if (props->hold_preemption) {
if (!props->single_context) {
- DRM_DEBUG("preemption disable with no context\n");
+ drm_dbg(&perf->i915->drm,
+ "preemption disable with no context\n");
ret = -EINVAL;
goto err;
}
@@ -3479,7 +3494,8 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
*/
if (privileged_op &&
i915_perf_stream_paranoid && !perfmon_capable()) {
- DRM_DEBUG("Insufficient privileges to open i915 perf stream\n");
+ drm_dbg(&perf->i915->drm,
+ "Insufficient privileges to open i915 perf stream\n");
ret = -EACCES;
goto err_ctx;
}
@@ -3586,7 +3602,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
props->poll_oa_period = DEFAULT_POLL_PERIOD_NS;
if (!n_props) {
- DRM_DEBUG("No i915 perf properties given\n");
+ drm_dbg(&perf->i915->drm,
+ "No i915 perf properties given\n");
return -EINVAL;
}
@@ -3595,7 +3612,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
I915_ENGINE_CLASS_RENDER,
0);
if (!props->engine) {
- DRM_DEBUG("No RENDER-capable engines\n");
+ drm_dbg(&perf->i915->drm,
+ "No RENDER-capable engines\n");
return -EINVAL;
}
@@ -3606,7 +3624,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
* from userspace.
*/
if (n_props >= DRM_I915_PERF_PROP_MAX) {
- DRM_DEBUG("More i915 perf properties specified than exist\n");
+ drm_dbg(&perf->i915->drm,
+ "More i915 perf properties specified than exist\n");
return -EINVAL;
}
@@ -3623,7 +3642,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
return ret;
if (id == 0 || id >= DRM_I915_PERF_PROP_MAX) {
- DRM_DEBUG("Unknown i915 perf property ID\n");
+ drm_dbg(&perf->i915->drm,
+ "Unknown i915 perf property ID\n");
return -EINVAL;
}
@@ -3638,19 +3658,22 @@ static int read_properties_unlocked(struct i915_perf *perf,
break;
case DRM_I915_PERF_PROP_OA_METRICS_SET:
if (value == 0) {
- DRM_DEBUG("Unknown OA metric set ID\n");
+ drm_dbg(&perf->i915->drm,
+ "Unknown OA metric set ID\n");
return -EINVAL;
}
props->metrics_set = value;
break;
case DRM_I915_PERF_PROP_OA_FORMAT:
if (value == 0 || value >= I915_OA_FORMAT_MAX) {
- DRM_DEBUG("Out-of-range OA report format %llu\n",
+ drm_dbg(&perf->i915->drm,
+ "Out-of-range OA report format %llu\n",
value);
return -EINVAL;
}
if (!oa_format_valid(perf, value)) {
- DRM_DEBUG("Unsupported OA report format %llu\n",
+ drm_dbg(&perf->i915->drm,
+ "Unsupported OA report format %llu\n",
value);
return -EINVAL;
}
@@ -3658,7 +3681,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
break;
case DRM_I915_PERF_PROP_OA_EXPONENT:
if (value > OA_EXPONENT_MAX) {
- DRM_DEBUG("OA timer exponent too high (> %u)\n",
+ drm_dbg(&perf->i915->drm,
+ "OA timer exponent too high (> %u)\n",
OA_EXPONENT_MAX);
return -EINVAL;
}
@@ -3686,7 +3710,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
oa_freq_hz = 0;
if (oa_freq_hz > i915_oa_max_sample_rate && !perfmon_capable()) {
- DRM_DEBUG("OA exponent would exceed the max sampling frequency (sysctl dev.i915.oa_max_sample_rate) %uHz without CAP_PERFMON or CAP_SYS_ADMIN privileges\n",
+ drm_dbg(&perf->i915->drm,
+ "OA exponent would exceed the max sampling frequency (sysctl dev.i915.oa_max_sample_rate) %uHz without CAP_PERFMON or CAP_SYS_ADMIN privileges\n",
i915_oa_max_sample_rate);
return -EACCES;
}
@@ -3703,13 +3728,15 @@ static int read_properties_unlocked(struct i915_perf *perf,
if (copy_from_user(&user_sseu,
u64_to_user_ptr(value),
sizeof(user_sseu))) {
- DRM_DEBUG("Unable to copy global sseu parameter\n");
+ drm_dbg(&perf->i915->drm,
+ "Unable to copy global sseu parameter\n");
return -EFAULT;
}
ret = get_sseu_config(&props->sseu, props->engine, &user_sseu);
if (ret) {
- DRM_DEBUG("Invalid SSEU configuration\n");
+ drm_dbg(&perf->i915->drm,
+ "Invalid SSEU configuration\n");
return ret;
}
props->has_sseu = true;
@@ -3717,7 +3744,8 @@ static int read_properties_unlocked(struct i915_perf *perf,
}
case DRM_I915_PERF_PROP_POLL_OA_PERIOD:
if (value < 100000 /* 100us */) {
- DRM_DEBUG("OA availability timer too small (%lluns < 100us)\n",
+ drm_dbg(&perf->i915->drm,
+ "OA availability timer too small (%lluns < 100us)\n",
value);
return -EINVAL;
}
@@ -3768,7 +3796,8 @@ int i915_perf_open_ioctl(struct drm_device *dev, void *data,
int ret;
if (!perf->i915) {
- DRM_DEBUG("i915 perf interface not available for this system\n");
+ drm_dbg(&perf->i915->drm,
+ "i915 perf interface not available for this system\n");
return -ENOTSUPP;
}
@@ -3776,7 +3805,8 @@ int i915_perf_open_ioctl(struct drm_device *dev, void *data,
I915_PERF_FLAG_FD_NONBLOCK |
I915_PERF_FLAG_DISABLED;
if (param->flags & ~known_open_flags) {
- DRM_DEBUG("Unknown drm_i915_perf_open_param flag\n");
+ drm_dbg(&perf->i915->drm,
+ "Unknown drm_i915_perf_open_param flag\n");
return -EINVAL;
}
@@ -3986,7 +4016,8 @@ static struct i915_oa_reg *alloc_oa_regs(struct i915_perf *perf,
goto addr_err;
if (!is_valid(perf, addr)) {
- DRM_DEBUG("Invalid oa_reg address: %X\n", addr);
+ drm_dbg(&perf->i915->drm,
+ "Invalid oa_reg address: %X\n", addr);
err = -EINVAL;
goto addr_err;
}
@@ -4060,30 +4091,35 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
int err, id;
if (!perf->i915) {
- DRM_DEBUG("i915 perf interface not available for this system\n");
+ drm_dbg(&perf->i915->drm,
+ "i915 perf interface not available for this system\n");
return -ENOTSUPP;
}
if (!perf->metrics_kobj) {
- DRM_DEBUG("OA metrics weren't advertised via sysfs\n");
+ drm_dbg(&perf->i915->drm,
+ "OA metrics weren't advertised via sysfs\n");
return -EINVAL;
}
if (i915_perf_stream_paranoid && !perfmon_capable()) {
- DRM_DEBUG("Insufficient privileges to add i915 OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Insufficient privileges to add i915 OA config\n");
return -EACCES;
}
if ((!args->mux_regs_ptr || !args->n_mux_regs) &&
(!args->boolean_regs_ptr || !args->n_boolean_regs) &&
(!args->flex_regs_ptr || !args->n_flex_regs)) {
- DRM_DEBUG("No OA registers given\n");
+ drm_dbg(&perf->i915->drm,
+ "No OA registers given\n");
return -EINVAL;
}
oa_config = kzalloc(sizeof(*oa_config), GFP_KERNEL);
if (!oa_config) {
- DRM_DEBUG("Failed to allocate memory for the OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to allocate memory for the OA config\n");
return -ENOMEM;
}
@@ -4091,7 +4127,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
kref_init(&oa_config->ref);
if (!uuid_is_valid(args->uuid)) {
- DRM_DEBUG("Invalid uuid format for OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Invalid uuid format for OA config\n");
err = -EINVAL;
goto reg_err;
}
@@ -4108,7 +4145,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
args->n_mux_regs);
if (IS_ERR(regs)) {
- DRM_DEBUG("Failed to create OA config for mux_regs\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to create OA config for mux_regs\n");
err = PTR_ERR(regs);
goto reg_err;
}
@@ -4121,7 +4159,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
args->n_boolean_regs);
if (IS_ERR(regs)) {
- DRM_DEBUG("Failed to create OA config for b_counter_regs\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to create OA config for b_counter_regs\n");
err = PTR_ERR(regs);
goto reg_err;
}
@@ -4140,7 +4179,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
args->n_flex_regs);
if (IS_ERR(regs)) {
- DRM_DEBUG("Failed to create OA config for flex_regs\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to create OA config for flex_regs\n");
err = PTR_ERR(regs);
goto reg_err;
}
@@ -4156,7 +4196,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
*/
idr_for_each_entry(&perf->metrics_idr, tmp, id) {
if (!strcmp(tmp->uuid, oa_config->uuid)) {
- DRM_DEBUG("OA config already exists with this uuid\n");
+ drm_dbg(&perf->i915->drm,
+ "OA config already exists with this uuid\n");
err = -EADDRINUSE;
goto sysfs_err;
}
@@ -4164,7 +4205,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
err = create_dynamic_oa_sysfs_entry(perf, oa_config);
if (err) {
- DRM_DEBUG("Failed to create sysfs entry for OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to create sysfs entry for OA config\n");
goto sysfs_err;
}
@@ -4173,22 +4215,25 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
oa_config, 2,
0, GFP_KERNEL);
if (oa_config->id < 0) {
- DRM_DEBUG("Failed to create sysfs entry for OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to create sysfs entry for OA config\n");
err = oa_config->id;
goto sysfs_err;
}
+ id = oa_config->id;
+ drm_dbg(&perf->i915->drm,
+ "Added config %s id=%i\n", oa_config->uuid, oa_config->id);
mutex_unlock(&perf->metrics_lock);
- DRM_DEBUG("Added config %s id=%i\n", oa_config->uuid, oa_config->id);
-
- return oa_config->id;
+ return id;
sysfs_err:
mutex_unlock(&perf->metrics_lock);
reg_err:
i915_oa_config_put(oa_config);
- DRM_DEBUG("Failed to add new OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to add new OA config\n");
return err;
}
@@ -4212,12 +4257,14 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
int ret;
if (!perf->i915) {
- DRM_DEBUG("i915 perf interface not available for this system\n");
+ drm_dbg(&perf->i915->drm,
+ "i915 perf interface not available for this system\n");
return -ENOTSUPP;
}
if (i915_perf_stream_paranoid && !perfmon_capable()) {
- DRM_DEBUG("Insufficient privileges to remove i915 OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Insufficient privileges to remove i915 OA config\n");
return -EACCES;
}
@@ -4227,7 +4274,8 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
oa_config = idr_find(&perf->metrics_idr, *arg);
if (!oa_config) {
- DRM_DEBUG("Failed to remove unknown OA config\n");
+ drm_dbg(&perf->i915->drm,
+ "Failed to remove unknown OA config\n");
ret = -ENOENT;
goto err_unlock;
}
@@ -4240,7 +4288,8 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
mutex_unlock(&perf->metrics_lock);
- DRM_DEBUG("Removed config %s id=%i\n", oa_config->uuid, oa_config->id);
+ drm_dbg(&perf->i915->drm,
+ "Removed config %s id=%i\n", oa_config->uuid, oa_config->id);
i915_oa_config_put(oa_config);
diff --git a/drivers/i2c/busses/i2c-hisi.c b/drivers/i2c/busses/i2c-hisi.c
index 72e43ecaff13..1f406e6f4ece 100644
--- a/drivers/i2c/busses/i2c-hisi.c
+++ b/drivers/i2c/busses/i2c-hisi.c
@@ -315,6 +315,13 @@ static void hisi_i2c_xfer_msg(struct hisi_i2c_controller *ctlr)
max_write == 0)
break;
}
+
+ /*
+ * Disable the TX_EMPTY interrupt after finishing all the messages to
+ * avoid overwhelming the CPU.
+ */
+ if (ctlr->msg_tx_idx == ctlr->msg_num)
+ hisi_i2c_disable_int(ctlr, HISI_I2C_INT_TX_EMPTY);
}
static irqreturn_t hisi_i2c_irq(int irq, void *context)
diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
index 2018dbcf241e..d45ec26d51cb 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@ -462,6 +462,8 @@ static int lpi2c_imx_xfer(struct i2c_adapter *adapter,
if (num == 1 && msgs[0].len == 0)
goto stop;
+ lpi2c_imx->rx_buf = NULL;
+ lpi2c_imx->tx_buf = NULL;
lpi2c_imx->delivered = 0;
lpi2c_imx->msglen = msgs[i].len;
init_completion(&lpi2c_imx->complete);
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index a0af027db04c..2e575856c5cd 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -342,18 +342,18 @@ static int ocores_poll_wait(struct ocores_i2c *i2c)
* ocores_isr(), we just add our polling code around it.
*
* It can run in atomic context
+ *
+ * Return: 0 on success, -ETIMEDOUT on timeout
*/
-static void ocores_process_polling(struct ocores_i2c *i2c)
+static int ocores_process_polling(struct ocores_i2c *i2c)
{
- while (1) {
- irqreturn_t ret;
- int err;
+ irqreturn_t ret;
+ int err = 0;
+ while (1) {
err = ocores_poll_wait(i2c);
- if (err) {
- i2c->state = STATE_ERROR;
+ if (err)
break; /* timeout */
- }
ret = ocores_isr(-1, i2c);
if (ret == IRQ_NONE)
@@ -364,13 +364,15 @@ static void ocores_process_polling(struct ocores_i2c *i2c)
break;
}
}
+
+ return err;
}
static int ocores_xfer_core(struct ocores_i2c *i2c,
struct i2c_msg *msgs, int num,
bool polling)
{
- int ret;
+ int ret = 0;
u8 ctrl;
ctrl = oc_getreg(i2c, OCI2C_CONTROL);
@@ -388,15 +390,16 @@ static int ocores_xfer_core(struct ocores_i2c *i2c,
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_START);
if (polling) {
- ocores_process_polling(i2c);
+ ret = ocores_process_polling(i2c);
} else {
- ret = wait_event_timeout(i2c->wait,
- (i2c->state == STATE_ERROR) ||
- (i2c->state == STATE_DONE), HZ);
- if (ret == 0) {
- ocores_process_timeout(i2c);
- return -ETIMEDOUT;
- }
+ if (wait_event_timeout(i2c->wait,
+ (i2c->state == STATE_ERROR) ||
+ (i2c->state == STATE_DONE), HZ) == 0)
+ ret = -ETIMEDOUT;
+ }
+ if (ret) {
+ ocores_process_timeout(i2c);
+ return ret;
}
return (i2c->state == STATE_DONE) ? num : -EIO;
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index fd192104fd8d..c66d8bf40585 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -496,22 +496,11 @@ static inline unsigned short cma_family(struct rdma_id_private *id_priv)
return id_priv->id.route.addr.src_addr.ss_family;
}
-static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey)
+static int cma_set_default_qkey(struct rdma_id_private *id_priv)
{
struct ib_sa_mcmember_rec rec;
int ret = 0;
- if (id_priv->qkey) {
- if (qkey && id_priv->qkey != qkey)
- return -EINVAL;
- return 0;
- }
-
- if (qkey) {
- id_priv->qkey = qkey;
- return 0;
- }
-
switch (id_priv->id.ps) {
case RDMA_PS_UDP:
case RDMA_PS_IB:
@@ -531,6 +520,16 @@ static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey)
return ret;
}
+static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey)
+{
+ if (!qkey ||
+ (id_priv->qkey && (id_priv->qkey != qkey)))
+ return -EINVAL;
+
+ id_priv->qkey = qkey;
+ return 0;
+}
+
static void cma_translate_ib(struct sockaddr_ib *sib, struct rdma_dev_addr *dev_addr)
{
dev_addr->dev_type = ARPHRD_INFINIBAND;
@@ -1099,7 +1098,7 @@ static int cma_ib_init_qp_attr(struct rdma_id_private *id_priv,
*qp_attr_mask = IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT;
if (id_priv->id.qp_type == IB_QPT_UD) {
- ret = cma_set_qkey(id_priv, 0);
+ ret = cma_set_default_qkey(id_priv);
if (ret)
return ret;
@@ -4373,7 +4372,10 @@ static int cma_send_sidr_rep(struct rdma_id_private *id_priv,
memset(&rep, 0, sizeof rep);
rep.status = status;
if (status == IB_SIDR_SUCCESS) {
- ret = cma_set_qkey(id_priv, qkey);
+ if (qkey)
+ ret = cma_set_qkey(id_priv, qkey);
+ else
+ ret = cma_set_default_qkey(id_priv);
if (ret)
return ret;
rep.qp_num = id_priv->qp_num;
@@ -4578,9 +4580,7 @@ static void cma_make_mc_event(int status, struct rdma_id_private *id_priv,
enum ib_gid_type gid_type;
struct net_device *ndev;
- if (!status)
- status = cma_set_qkey(id_priv, be32_to_cpu(multicast->rec.qkey));
- else
+ if (status)
pr_debug_ratelimited("RDMA CM: MULTICAST_ERROR: failed to join multicast. status %d\n",
status);
@@ -4608,7 +4608,7 @@ static void cma_make_mc_event(int status, struct rdma_id_private *id_priv,
}
event->param.ud.qp_num = 0xFFFFFF;
- event->param.ud.qkey = be32_to_cpu(multicast->rec.qkey);
+ event->param.ud.qkey = id_priv->qkey;
out:
if (ndev)
@@ -4627,8 +4627,11 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
READ_ONCE(id_priv->state) == RDMA_CM_DESTROYING)
goto out;
- cma_make_mc_event(status, id_priv, multicast, &event, mc);
- ret = cma_cm_event_handler(id_priv, &event);
+ ret = cma_set_qkey(id_priv, be32_to_cpu(multicast->rec.qkey));
+ if (!ret) {
+ cma_make_mc_event(status, id_priv, multicast, &event, mc);
+ ret = cma_cm_event_handler(id_priv, &event);
+ }
rdma_destroy_ah_attr(&event.param.ud.ah_attr);
WARN_ON(ret);
@@ -4681,9 +4684,11 @@ static int cma_join_ib_multicast(struct rdma_id_private *id_priv,
if (ret)
return ret;
- ret = cma_set_qkey(id_priv, 0);
- if (ret)
- return ret;
+ if (!id_priv->qkey) {
+ ret = cma_set_default_qkey(id_priv);
+ if (ret)
+ return ret;
+ }
cma_set_mgid(id_priv, (struct sockaddr *) &mc->addr, &rec.mgid);
rec.qkey = cpu_to_be32(id_priv->qkey);
@@ -4760,9 +4765,6 @@ static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
cma_iboe_set_mgid(addr, &ib.rec.mgid, gid_type);
ib.rec.pkey = cpu_to_be16(0xffff);
- if (id_priv->id.ps == RDMA_PS_UDP)
- ib.rec.qkey = cpu_to_be32(RDMA_UDP_QKEY);
-
if (dev_addr->bound_dev_if)
ndev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if);
if (!ndev)
@@ -4788,6 +4790,9 @@ static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
if (err || !ib.rec.mtu)
return err ?: -EINVAL;
+ if (!id_priv->qkey)
+ cma_set_default_qkey(id_priv);
+
rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
&ib.rec.port_gid);
INIT_WORK(&mc->iboe_join.work, cma_iboe_join_work_handler);
@@ -4813,6 +4818,9 @@ int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
READ_ONCE(id_priv->state) != RDMA_CM_ADDR_RESOLVED))
return -EINVAL;
+ if (id_priv->id.qp_type != IB_QPT_UD)
+ return -EINVAL;
+
mc = kzalloc(sizeof(*mc), GFP_KERNEL);
if (!mc)
return -ENOMEM;
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index f0c07e4ba438..cae013130eb1 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -540,6 +540,8 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd,
else
ret = device->ops.create_ah(ah, &init_attr, NULL);
if (ret) {
+ if (ah->sgid_attr)
+ rdma_put_gid_attr(ah->sgid_attr);
kfree(ah);
return ERR_PTR(ret);
}
diff --git a/drivers/infiniband/hw/irdma/cm.c b/drivers/infiniband/hw/irdma/cm.c
index a8ec3d8f6e46..64d4bb0e9a12 100644
--- a/drivers/infiniband/hw/irdma/cm.c
+++ b/drivers/infiniband/hw/irdma/cm.c
@@ -1458,13 +1458,15 @@ static int irdma_send_fin(struct irdma_cm_node *cm_node)
* irdma_find_listener - find a cm node listening on this addr-port pair
* @cm_core: cm's core
* @dst_addr: listener ip addr
+ * @ipv4: flag indicating IPv4 when true
* @dst_port: listener tcp port num
* @vlan_id: virtual LAN ID
* @listener_state: state to match with listen node's
*/
static struct irdma_cm_listener *
-irdma_find_listener(struct irdma_cm_core *cm_core, u32 *dst_addr, u16 dst_port,
- u16 vlan_id, enum irdma_cm_listener_state listener_state)
+irdma_find_listener(struct irdma_cm_core *cm_core, u32 *dst_addr, bool ipv4,
+ u16 dst_port, u16 vlan_id,
+ enum irdma_cm_listener_state listener_state)
{
struct irdma_cm_listener *listen_node;
static const u32 ip_zero[4] = { 0, 0, 0, 0 };
@@ -1477,7 +1479,7 @@ irdma_find_listener(struct irdma_cm_core *cm_core, u32 *dst_addr, u16 dst_port,
list_for_each_entry (listen_node, &cm_core->listen_list, list) {
memcpy(listen_addr, listen_node->loc_addr, sizeof(listen_addr));
listen_port = listen_node->loc_port;
- if (listen_port != dst_port ||
+ if (listen_node->ipv4 != ipv4 || listen_port != dst_port ||
!(listener_state & listen_node->listener_state))
continue;
/* compare node pair, return node handle if a match */
@@ -2899,9 +2901,10 @@ irdma_make_listen_node(struct irdma_cm_core *cm_core,
unsigned long flags;
/* cannot have multiple matching listeners */
- listener = irdma_find_listener(cm_core, cm_info->loc_addr,
- cm_info->loc_port, cm_info->vlan_id,
- IRDMA_CM_LISTENER_EITHER_STATE);
+ listener =
+ irdma_find_listener(cm_core, cm_info->loc_addr, cm_info->ipv4,
+ cm_info->loc_port, cm_info->vlan_id,
+ IRDMA_CM_LISTENER_EITHER_STATE);
if (listener &&
listener->listener_state == IRDMA_CM_LISTENER_ACTIVE_STATE) {
refcount_dec(&listener->refcnt);
@@ -3150,6 +3153,7 @@ void irdma_receive_ilq(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *rbuf)
listener = irdma_find_listener(cm_core,
cm_info.loc_addr,
+ cm_info.ipv4,
cm_info.loc_port,
cm_info.vlan_id,
IRDMA_CM_LISTENER_ACTIVE_STATE);
diff --git a/drivers/infiniband/hw/irdma/cm.h b/drivers/infiniband/hw/irdma/cm.h
index d03cd29333ea..2b0fb5a6b300 100644
--- a/drivers/infiniband/hw/irdma/cm.h
+++ b/drivers/infiniband/hw/irdma/cm.h
@@ -41,7 +41,7 @@
#define TCP_OPTIONS_PADDING 3
#define IRDMA_DEFAULT_RETRYS 64
-#define IRDMA_DEFAULT_RETRANS 8
+#define IRDMA_DEFAULT_RETRANS 32
#define IRDMA_DEFAULT_TTL 0x40
#define IRDMA_DEFAULT_RTT_VAR 6
#define IRDMA_DEFAULT_SS_THRESH 0x3fffffff
diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c
index b918f80d2e2c..3b070cb3c4da 100644
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -41,6 +41,7 @@ static enum irdma_hmc_rsrc_type iw_hmc_obj_types[] = {
IRDMA_HMC_IW_XFFL,
IRDMA_HMC_IW_Q1,
IRDMA_HMC_IW_Q1FL,
+ IRDMA_HMC_IW_PBLE,
IRDMA_HMC_IW_TIMER,
IRDMA_HMC_IW_FSIMC,
IRDMA_HMC_IW_FSIAV,
@@ -829,6 +830,8 @@ irdma_create_hmc_objs(struct irdma_pci_f *rf, bool privileged, enum irdma_vers v
info.entry_type = rf->sd_type;
for (i = 0; i < IW_HMC_OBJ_TYPE_NUM; i++) {
+ if (iw_hmc_obj_types[i] == IRDMA_HMC_IW_PBLE)
+ continue;
if (dev->hmc_info->hmc_obj[iw_hmc_obj_types[i]].cnt) {
info.rsrc_type = iw_hmc_obj_types[i];
info.count = dev->hmc_info->hmc_obj[info.rsrc_type].cnt;
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 827ee3040bea..2361caa38547 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -443,6 +443,10 @@ static int translate_eth_ext_proto_oper(u32 eth_proto_oper, u16 *active_speed,
*active_width = IB_WIDTH_2X;
*active_speed = IB_SPEED_NDR;
break;
+ case MLX5E_PROT_MASK(MLX5E_400GAUI_8):
+ *active_width = IB_WIDTH_8X;
+ *active_speed = IB_SPEED_HDR;
+ break;
case MLX5E_PROT_MASK(MLX5E_400GAUI_4_400GBASE_CR4_KR4):
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_NDR;
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 1e94e7d10b8b..a0a1194dc1d9 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -153,7 +153,7 @@ static int do_cached_write (struct mtdblk_dev *mtdblk, unsigned long pos,
mtdblk->cache_state = STATE_EMPTY;
ret = mtd_read(mtd, sect_start, sect_size,
&retlen, mtdblk->cache_data);
- if (ret)
+ if (ret && !mtd_is_bitflip(ret))
return ret;
if (retlen != sect_size)
return -EIO;
@@ -188,8 +188,12 @@ static int do_cached_read (struct mtdblk_dev *mtdblk, unsigned long pos,
pr_debug("mtdblock: read on \"%s\" at 0x%lx, size 0x%x\n",
mtd->name, pos, len);
- if (!sect_size)
- return mtd_read(mtd, pos, len, &retlen, buf);
+ if (!sect_size) {
+ ret = mtd_read(mtd, pos, len, &retlen, buf);
+ if (ret && !mtd_is_bitflip(ret))
+ return ret;
+ return 0;
+ }
while (len > 0) {
unsigned long sect_start = (pos/sect_size)*sect_size;
@@ -209,7 +213,7 @@ static int do_cached_read (struct mtdblk_dev *mtdblk, unsigned long pos,
memcpy (buf, mtdblk->cache_data + offset, size);
} else {
ret = mtd_read(mtd, pos, size, &retlen, buf);
- if (ret)
+ if (ret && !mtd_is_bitflip(ret))
return ret;
if (retlen != size)
return -EIO;
diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c
index 4fd20e70aabd..c66edabec9f1 100644
--- a/drivers/mtd/nand/raw/meson_nand.c
+++ b/drivers/mtd/nand/raw/meson_nand.c
@@ -276,7 +276,7 @@ static void meson_nfc_cmd_access(struct nand_chip *nand, int raw, bool dir,
if (raw) {
len = mtd->writesize + mtd->oobsize;
- cmd = (len & GENMASK(5, 0)) | scrambler | DMA_DIR(dir);
+ cmd = (len & GENMASK(13, 0)) | scrambler | DMA_DIR(dir);
writel(cmd, nfc->reg_base + NFC_REG_CMD);
return;
}
@@ -540,7 +540,7 @@ static int meson_nfc_read_buf(struct nand_chip *nand, u8 *buf, int len)
if (ret)
goto out;
- cmd = NFC_CMD_N2M | (len & GENMASK(5, 0));
+ cmd = NFC_CMD_N2M | (len & GENMASK(13, 0));
writel(cmd, nfc->reg_base + NFC_REG_CMD);
meson_nfc_drain_cmd(nfc);
@@ -564,7 +564,7 @@ static int meson_nfc_write_buf(struct nand_chip *nand, u8 *buf, int len)
if (ret)
return ret;
- cmd = NFC_CMD_M2N | (len & GENMASK(5, 0));
+ cmd = NFC_CMD_M2N | (len & GENMASK(13, 0));
writel(cmd, nfc->reg_base + NFC_REG_CMD);
meson_nfc_drain_cmd(nfc);
diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
index 1c277fbb91f2..1ac8c4887ce0 100644
--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
@@ -1527,6 +1527,9 @@ static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, int chipnr,
if (IS_ERR(sdrt))
return PTR_ERR(sdrt);
+ if (conf->timings.mode > 3)
+ return -EOPNOTSUPP;
+
if (chipnr == NAND_DATA_IFACE_CHECK_ONLY)
return 0;
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 3499ff2649d5..762dc14aef74 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -664,12 +664,6 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
ubi->ec_hdr_alsize = ALIGN(UBI_EC_HDR_SIZE, ubi->hdrs_min_io_size);
ubi->vid_hdr_alsize = ALIGN(UBI_VID_HDR_SIZE, ubi->hdrs_min_io_size);
- if (ubi->vid_hdr_offset && ((ubi->vid_hdr_offset + UBI_VID_HDR_SIZE) >
- ubi->vid_hdr_alsize)) {
- ubi_err(ubi, "VID header offset %d too large.", ubi->vid_hdr_offset);
- return -EINVAL;
- }
-
dbg_gen("min_io_size %d", ubi->min_io_size);
dbg_gen("max_write_size %d", ubi->max_write_size);
dbg_gen("hdrs_min_io_size %d", ubi->hdrs_min_io_size);
@@ -687,6 +681,21 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
ubi->vid_hdr_aloffset;
}
+ /*
+ * Memory allocation for VID header is ubi->vid_hdr_alsize
+ * which is described in comments in io.c.
+ * Make sure VID header shift + UBI_VID_HDR_SIZE not exceeds
+ * ubi->vid_hdr_alsize, so that all vid header operations
+ * won't access memory out of bounds.
+ */
+ if ((ubi->vid_hdr_shift + UBI_VID_HDR_SIZE) > ubi->vid_hdr_alsize) {
+ ubi_err(ubi, "Invalid VID header offset %d, VID header shift(%d)"
+ " + VID header size(%zu) > VID header aligned size(%d).",
+ ubi->vid_hdr_offset, ubi->vid_hdr_shift,
+ UBI_VID_HDR_SIZE, ubi->vid_hdr_alsize);
+ return -EINVAL;
+ }
+
/* Similar for the data offset */
ubi->leb_start = ubi->vid_hdr_offset + UBI_VID_HDR_SIZE;
ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size);
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 2ee0e60c43c2..4427018ad4d9 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -575,7 +575,7 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
* @vol_id: the volume ID that last used this PEB
* @lnum: the last used logical eraseblock number for the PEB
* @torture: if the physical eraseblock has to be tortured
- * @nested: denotes whether the work_sem is already held in read mode
+ * @nested: denotes whether the work_sem is already held
*
* This function returns zero in case of success and a %-ENOMEM in case of
* failure.
@@ -1121,7 +1121,7 @@ static int __erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk)
int err1;
/* Re-schedule the LEB for erasure */
- err1 = schedule_erase(ubi, e, vol_id, lnum, 0, false);
+ err1 = schedule_erase(ubi, e, vol_id, lnum, 0, true);
if (err1) {
spin_lock(&ubi->wl_lock);
wl_entry_destroy(ubi, e);
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 906c5bbefaac..ddadb1822d89 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -1044,6 +1044,10 @@ static dma_addr_t macb_get_addr(struct macb *bp, struct macb_dma_desc *desc)
}
#endif
addr |= MACB_BF(RX_WADDR, MACB_BFEXT(RX_WADDR, desc->addr));
+#ifdef CONFIG_MACB_USE_HWSTAMP
+ if (bp->hw_dma_cap & HW_DMA_CAP_PTP)
+ addr &= ~GEM_BIT(DMA_RXVALID);
+#endif
return addr;
}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 87f76bac2e46..eb827b86ecae 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -628,7 +628,13 @@ int qlcnic_fw_create_ctx(struct qlcnic_adapter *dev)
int i, err, ring;
if (dev->flags & QLCNIC_NEED_FLR) {
- pci_reset_function(dev->pdev);
+ err = pci_reset_function(dev->pdev);
+ if (err) {
+ dev_err(&dev->pdev->dev,
+ "Adapter reset failed (%d). Please reboot\n",
+ err);
+ return err;
+ }
dev->flags &= ~QLCNIC_NEED_FLR;
}
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index a68a01d1b2b1..3fdc7c9824a3 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -4503,7 +4503,7 @@ static int niu_alloc_channels(struct niu *np)
err = niu_rbr_fill(np, rp, GFP_KERNEL);
if (err)
- return err;
+ goto out_err;
}
tx_rings = kcalloc(num_tx_rings, sizeof(struct tx_ring_info),
diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c
index fbb64aa32404..a3196c04caf6 100644
--- a/drivers/net/phy/nxp-c45-tja11xx.c
+++ b/drivers/net/phy/nxp-c45-tja11xx.c
@@ -168,7 +168,7 @@
#define MAX_ID_PS 2260U
#define DEFAULT_ID_PS 2000U
-#define PPM_TO_SUBNS_INC(ppb) div_u64(GENMASK(31, 0) * (ppb) * \
+#define PPM_TO_SUBNS_INC(ppb) div_u64(GENMASK_ULL(31, 0) * (ppb) * \
PTP_CLK_PERIOD_100BT1, NSEC_PER_SEC)
#define NXP_C45_SKB_CB(skb) ((struct nxp_c45_skb_cb *)(skb)->cb)
@@ -1117,6 +1117,17 @@ static int nxp_c45_probe(struct phy_device *phydev)
return ret;
}
+static void nxp_c45_remove(struct phy_device *phydev)
+{
+ struct nxp_c45_phy *priv = phydev->priv;
+
+ if (priv->ptp_clock)
+ ptp_clock_unregister(priv->ptp_clock);
+
+ skb_queue_purge(&priv->tx_queue);
+ skb_queue_purge(&priv->rx_queue);
+}
+
static struct phy_driver nxp_c45_driver[] = {
{
PHY_ID_MATCH_MODEL(PHY_ID_TJA_1103),
@@ -1139,6 +1150,7 @@ static struct phy_driver nxp_c45_driver[] = {
.set_loopback = genphy_c45_loopback,
.get_sqi = nxp_c45_get_sqi,
.get_sqi_max = nxp_c45_get_sqi_max,
+ .remove = nxp_c45_remove,
},
};
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 028a5df5c538..d5918605eae6 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -208,6 +208,12 @@ static const enum gpiod_flags gpio_flags[] = {
*/
#define SFP_PHY_ADDR 22
+/* SFP_EEPROM_BLOCK_SIZE is the size of data chunk to read the EEPROM
+ * at a time. Some SFP modules and also some Linux I2C drivers do not like
+ * reads longer than 16 bytes.
+ */
+#define SFP_EEPROM_BLOCK_SIZE 16
+
struct sff_data {
unsigned int gpios;
bool (*module_supported)(const struct sfp_eeprom_id *id);
@@ -1806,11 +1812,7 @@ static int sfp_sm_mod_probe(struct sfp *sfp, bool report)
u8 check;
int ret;
- /* Some SFP modules and also some Linux I2C drivers do not like reads
- * longer than 16 bytes, so read the EEPROM in chunks of 16 bytes at
- * a time.
- */
- sfp->i2c_block_size = 16;
+ sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE;
ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base));
if (ret < 0) {
@@ -2462,6 +2464,7 @@ static struct sfp *sfp_alloc(struct device *dev)
return ERR_PTR(-ENOMEM);
sfp->dev = dev;
+ sfp->i2c_block_size = SFP_EEPROM_BLOCK_SIZE;
mutex_init(&sfp->sm_mutex);
mutex_init(&sfp->st_mutex);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 56c7a68a6491..fa7de3e47b8c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -820,7 +820,10 @@ void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
rcu_read_lock();
do {
- while (likely(!mvmtxq->stopped &&
+ while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
+ &mvmtxq->state) &&
+ !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
+ &mvmtxq->state) &&
!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
skb = ieee80211_tx_dequeue(hw, txq);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 46af8dd2dc93..6b59425dbdb1 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -727,7 +727,9 @@ struct iwl_mvm_txq {
struct list_head list;
u16 txq_id;
atomic_t tx_request;
- bool stopped;
+#define IWL_MVM_TXQ_STATE_STOP_FULL 0
+#define IWL_MVM_TXQ_STATE_STOP_REDIRECT 1
+ unsigned long state;
};
static inline struct iwl_mvm_txq *
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index eeb81808db08..3ee4b3ecd0c8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1304,7 +1304,10 @@ static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
txq = sta->txq[tid];
mvmtxq = iwl_mvm_txq_from_mac80211(txq);
- mvmtxq->stopped = !start;
+ if (start)
+ clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
+ else
+ set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 1bb456daff9e..45dfee3ad8c6 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -640,7 +640,7 @@ static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid,
queue, iwl_mvm_ac_to_tx_fifo[ac]);
/* Stop the queue and wait for it to empty */
- txq->stopped = true;
+ set_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, &txq->state);
ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue));
if (ret) {
@@ -683,7 +683,7 @@ static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid,
out:
/* Continue using the queue */
- txq->stopped = false;
+ clear_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, &txq->state);
return ret;
}
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index d5fb29400bad..94a6bbcae2d3 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -184,7 +184,7 @@ static const struct mwifiex_pcie_device mwifiex_pcie8997 = {
.can_ext_scan = true,
};
-static const struct of_device_id mwifiex_pcie_of_match_table[] = {
+static const struct of_device_id mwifiex_pcie_of_match_table[] __maybe_unused = {
{ .compatible = "pci11ab,2b42" },
{ .compatible = "pci1b4b,2b42" },
{ }
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index 7fb6eef40928..b09e60fedeb1 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -484,7 +484,7 @@ static struct memory_type_mapping mem_type_mapping_tbl[] = {
{"EXTLAST", NULL, 0, 0xFE},
};
-static const struct of_device_id mwifiex_sdio_of_match_table[] = {
+static const struct of_device_id mwifiex_sdio_of_match_table[] __maybe_unused = {
{ .compatible = "marvell,sd8787" },
{ .compatible = "marvell,sd8897" },
{ .compatible = "marvell,sd8997" },
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 6539332b42b3..c3acef6c3291 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3388,6 +3388,21 @@ static const struct pci_device_id nvme_id_table[] = {
.driver_data = NVME_QUIRK_BOGUS_NID, },
{ PCI_DEVICE(0x1e4B, 0x1202), /* MAXIO MAP1202 */
.driver_data = NVME_QUIRK_BOGUS_NID, },
+ { PCI_DEVICE(0x1cc1, 0x5350), /* ADATA XPG GAMMIX S50 */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
+ { PCI_DEVICE(0x1e49, 0x0021), /* ZHITAI TiPro5000 NVMe SSD */
+ .driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
+ { PCI_DEVICE(0x1e49, 0x0041), /* ZHITAI TiPro7000 NVMe SSD */
+ .driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
+ { PCI_DEVICE(0xc0a9, 0x540a), /* Crucial P2 */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
+ { PCI_DEVICE(0x1d97, 0x2263), /* Lexar NM610 */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
+ { PCI_DEVICE(0x1d97, 0x2269), /* Lexar NM760 */
+ .driver_data = NVME_QUIRK_BOGUS_NID |
+ NVME_QUIRK_IGNORE_DEV_SUBNQN, },
+ { PCI_DEVICE(0x10ec, 0x5763), /* TEAMGROUP T-FORCE CARDEA ZERO Z330 SSD */
+ .driver_data = NVME_QUIRK_BOGUS_NID, },
{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON, 0x0061),
.driver_data = NVME_QUIRK_DMA_ADDRESS_BITS_48, },
{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON, 0x0065),
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 0a77b8426817..52d1fe5ec3e7 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -863,34 +863,32 @@ static const struct pinconf_ops amd_pinconf_ops = {
.pin_config_group_set = amd_pinconf_group_set,
};
-static void amd_gpio_irq_init_pin(struct amd_gpio *gpio_dev, int pin)
+static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
{
- const struct pin_desc *pd;
+ struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
unsigned long flags;
u32 pin_reg, mask;
+ int i;
mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3) |
BIT(INTERRUPT_MASK_OFF) | BIT(INTERRUPT_ENABLE_OFF) |
BIT(WAKE_CNTRL_OFF_S4);
- pd = pin_desc_get(gpio_dev->pctrl, pin);
- if (!pd)
- return;
+ for (i = 0; i < desc->npins; i++) {
+ int pin = desc->pins[i].number;
+ const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);
- raw_spin_lock_irqsave(&gpio_dev->lock, flags);
- pin_reg = readl(gpio_dev->base + pin * 4);
- pin_reg &= ~mask;
- writel(pin_reg, gpio_dev->base + pin * 4);
- raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
-}
+ if (!pd)
+ continue;
-static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
-{
- struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
- int i;
+ raw_spin_lock_irqsave(&gpio_dev->lock, flags);
- for (i = 0; i < desc->npins; i++)
- amd_gpio_irq_init_pin(gpio_dev, i);
+ pin_reg = readl(gpio_dev->base + i * 4);
+ pin_reg &= ~mask;
+ writel(pin_reg, gpio_dev->base + i * 4);
+
+ raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
+ }
}
#ifdef CONFIG_PM_SLEEP
@@ -943,10 +941,8 @@ static int amd_gpio_resume(struct device *dev)
for (i = 0; i < desc->npins; i++) {
int pin = desc->pins[i].number;
- if (!amd_gpio_should_save(gpio_dev, pin)) {
- amd_gpio_irq_init_pin(gpio_dev, pin);
+ if (!amd_gpio_should_save(gpio_dev, pin))
continue;
- }
raw_spin_lock_irqsave(&gpio_dev->lock, flags);
gpio_dev->saved_regs[i] |= readl(gpio_dev->base + pin * 4) & PIN_IRQ_PENDING;
diff --git a/drivers/power/supply/cros_usbpd-charger.c b/drivers/power/supply/cros_usbpd-charger.c
index d89e08efd2ad..0a4f02e4ae7b 100644
--- a/drivers/power/supply/cros_usbpd-charger.c
+++ b/drivers/power/supply/cros_usbpd-charger.c
@@ -276,7 +276,7 @@ static int cros_usbpd_charger_get_power_info(struct port_data *port)
port->psy_current_max = 0;
break;
default:
- dev_err(dev, "Port %d: default case!\n", port->port_number);
+ dev_dbg(dev, "Port %d: default case!\n", port->port_number);
port->psy_usb_type = POWER_SUPPLY_USB_TYPE_SDP;
}
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 1707d6d144d2..6a1428d453f3 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -503,9 +503,6 @@ static int ses_enclosure_find_by_addr(struct enclosure_device *edev,
int i;
struct ses_component *scomp;
- if (!edev->component[0].scratch)
- return 0;
-
for (i = 0; i < edev->components; i++) {
scomp = edev->component[i].scratch;
if (scomp->addr != efd->addr)
@@ -596,8 +593,10 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
components++,
type_ptr[0],
name);
- else
+ else if (components < edev->components)
ecomp = &edev->component[components++];
+ else
+ ecomp = ERR_PTR(-EINVAL);
if (!IS_ERR(ecomp)) {
if (addl_desc_ptr) {
@@ -728,11 +727,6 @@ static int ses_intf_add(struct device *cdev,
components += type_ptr[1];
}
- if (components == 0) {
- sdev_printk(KERN_WARNING, sdev, "enclosure has no enumerated components\n");
- goto err_free;
- }
-
ses_dev->page1 = buf;
ses_dev->page1_len = len;
buf = NULL;
@@ -774,9 +768,11 @@ static int ses_intf_add(struct device *cdev,
buf = NULL;
}
page2_not_supported:
- scomp = kcalloc(components, sizeof(struct ses_component), GFP_KERNEL);
- if (!scomp)
- goto err_free;
+ if (components > 0) {
+ scomp = kcalloc(components, sizeof(struct ses_component), GFP_KERNEL);
+ if (!scomp)
+ goto err_free;
+ }
edev = enclosure_register(cdev->parent, dev_name(&sdev->sdev_gendev),
components, &ses_enclosure_callbacks);
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 528c87ff14d8..1b288a613a6e 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1119,6 +1119,8 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
case FBIOPUT_VSCREENINFO:
if (copy_from_user(&var, argp, sizeof(var)))
return -EFAULT;
+ /* only for kernel-internal use */
+ var.activate &= ~FB_ACTIVATE_KD_TEXT;
console_lock();
lock_fb_info(info);
ret = fbcon_modechange_possible(info, &var);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ce2da06c9d7b..a4bfa5acaf9f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2318,6 +2318,23 @@ static int btrfs_init_csum_hash(struct btrfs_fs_info *fs_info, u16 csum_type)
fs_info->csum_shash = csum_shash;
+ /*
+ * Check if the checksum implementation is a fast accelerated one.
+ * As-is this is a bit of a hack and should be replaced once the csum
+ * implementations provide that information themselves.
+ */
+ switch (csum_type) {
+ case BTRFS_CSUM_TYPE_CRC32:
+ if (!strstr(crypto_shash_driver_name(csum_shash), "generic"))
+ set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags);
+ break;
+ default:
+ break;
+ }
+
+ btrfs_info(fs_info, "using %s (%s) checksum algorithm",
+ btrfs_super_csum_name(csum_type),
+ crypto_shash_driver_name(csum_shash));
return 0;
}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 4ff55457f902..ea23b83fc96b 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1749,8 +1749,6 @@ static struct dentry *btrfs_mount_root(struct file_system_type *fs_type,
} else {
snprintf(s->s_id, sizeof(s->s_id), "%pg", bdev);
btrfs_sb(s)->bdev_holder = fs_type;
- if (!strstr(crc32c_impl(), "generic"))
- set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags);
error = btrfs_fill_super(s, fs_devices, data);
}
if (!error)
diff --git a/include/linux/counter.h b/include/linux/counter.h
index d16ce2819b48..c72dda6d6af5 100644
--- a/include/linux/counter.h
+++ b/include/linux/counter.h
@@ -6,42 +6,184 @@
#ifndef _COUNTER_H_
#define _COUNTER_H_
-#include <linux/counter_enum.h>
#include <linux/device.h>
+#include <linux/kernel.h>
#include <linux/types.h>
+struct counter_device;
+struct counter_count;
+struct counter_synapse;
+struct counter_signal;
+
+enum counter_comp_type {
+ COUNTER_COMP_U8,
+ COUNTER_COMP_U64,
+ COUNTER_COMP_BOOL,
+ COUNTER_COMP_SIGNAL_LEVEL,
+ COUNTER_COMP_FUNCTION,
+ COUNTER_COMP_SYNAPSE_ACTION,
+ COUNTER_COMP_ENUM,
+ COUNTER_COMP_COUNT_DIRECTION,
+ COUNTER_COMP_COUNT_MODE,
+};
+
+enum counter_scope {
+ COUNTER_SCOPE_DEVICE,
+ COUNTER_SCOPE_SIGNAL,
+ COUNTER_SCOPE_COUNT,
+};
+
enum counter_count_direction {
- COUNTER_COUNT_DIRECTION_FORWARD = 0,
- COUNTER_COUNT_DIRECTION_BACKWARD
+ COUNTER_COUNT_DIRECTION_FORWARD,
+ COUNTER_COUNT_DIRECTION_BACKWARD,
};
-extern const char *const counter_count_direction_str[2];
enum counter_count_mode {
- COUNTER_COUNT_MODE_NORMAL = 0,
+ COUNTER_COUNT_MODE_NORMAL,
COUNTER_COUNT_MODE_RANGE_LIMIT,
COUNTER_COUNT_MODE_NON_RECYCLE,
- COUNTER_COUNT_MODE_MODULO_N
+ COUNTER_COUNT_MODE_MODULO_N,
};
-extern const char *const counter_count_mode_str[4];
-struct counter_device;
-struct counter_signal;
+enum counter_function {
+ COUNTER_FUNCTION_INCREASE,
+ COUNTER_FUNCTION_DECREASE,
+ COUNTER_FUNCTION_PULSE_DIRECTION,
+ COUNTER_FUNCTION_QUADRATURE_X1_A,
+ COUNTER_FUNCTION_QUADRATURE_X1_B,
+ COUNTER_FUNCTION_QUADRATURE_X2_A,
+ COUNTER_FUNCTION_QUADRATURE_X2_B,
+ COUNTER_FUNCTION_QUADRATURE_X4,
+};
+
+enum counter_signal_level {
+ COUNTER_SIGNAL_LEVEL_LOW,
+ COUNTER_SIGNAL_LEVEL_HIGH,
+};
+
+enum counter_synapse_action {
+ COUNTER_SYNAPSE_ACTION_NONE,
+ COUNTER_SYNAPSE_ACTION_RISING_EDGE,
+ COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
+ COUNTER_SYNAPSE_ACTION_BOTH_EDGES,
+};
/**
- * struct counter_signal_ext - Counter Signal extensions
- * @name: attribute name
- * @read: read callback for this attribute; may be NULL
- * @write: write callback for this attribute; may be NULL
- * @priv: data private to the driver
+ * struct counter_comp - Counter component node
+ * @type: Counter component data type
+ * @name: device-specific component name
+ * @priv: component-relevant data
+ * @action_read: Synapse action mode read callback. The read value of the
+ * respective Synapse action mode should be passed back via
+ * the action parameter.
+ * @device_u8_read: Device u8 component read callback. The read value of the
+ * respective Device u8 component should be passed back via
+ * the val parameter.
+ * @count_u8_read: Count u8 component read callback. The read value of the
+ * respective Count u8 component should be passed back via
+ * the val parameter.
+ * @signal_u8_read: Signal u8 component read callback. The read value of the
+ * respective Signal u8 component should be passed back via
+ * the val parameter.
+ * @device_u32_read: Device u32 component read callback. The read value of
+ * the respective Device u32 component should be passed
+ * back via the val parameter.
+ * @count_u32_read: Count u32 component read callback. The read value of the
+ * respective Count u32 component should be passed back via
+ * the val parameter.
+ * @signal_u32_read: Signal u32 component read callback. The read value of
+ * the respective Signal u32 component should be passed
+ * back via the val parameter.
+ * @device_u64_read: Device u64 component read callback. The read value of
+ * the respective Device u64 component should be passed
+ * back via the val parameter.
+ * @count_u64_read: Count u64 component read callback. The read value of the
+ * respective Count u64 component should be passed back via
+ * the val parameter.
+ * @signal_u64_read: Signal u64 component read callback. The read value of
+ * the respective Signal u64 component should be passed
+ * back via the val parameter.
+ * @action_write: Synapse action mode write callback. The write value of
+ * the respective Synapse action mode is passed via the
+ * action parameter.
+ * @device_u8_write: Device u8 component write callback. The write value of
+ * the respective Device u8 component is passed via the val
+ * parameter.
+ * @count_u8_write: Count u8 component write callback. The write value of
+ * the respective Count u8 component is passed via the val
+ * parameter.
+ * @signal_u8_write: Signal u8 component write callback. The write value of
+ * the respective Signal u8 component is passed via the val
+ * parameter.
+ * @device_u32_write: Device u32 component write callback. The write value of
+ * the respective Device u32 component is passed via the
+ * val parameter.
+ * @count_u32_write: Count u32 component write callback. The write value of
+ * the respective Count u32 component is passed via the val
+ * parameter.
+ * @signal_u32_write: Signal u32 component write callback. The write value of
+ * the respective Signal u32 component is passed via the
+ * val parameter.
+ * @device_u64_write: Device u64 component write callback. The write value of
+ * the respective Device u64 component is passed via the
+ * val parameter.
+ * @count_u64_write: Count u64 component write callback. The write value of
+ * the respective Count u64 component is passed via the val
+ * parameter.
+ * @signal_u64_write: Signal u64 component write callback. The write value of
+ * the respective Signal u64 component is passed via the
+ * val parameter.
*/
-struct counter_signal_ext {
+struct counter_comp {
+ enum counter_comp_type type;
const char *name;
- ssize_t (*read)(struct counter_device *counter,
- struct counter_signal *signal, void *priv, char *buf);
- ssize_t (*write)(struct counter_device *counter,
- struct counter_signal *signal, void *priv,
- const char *buf, size_t len);
void *priv;
+ union {
+ int (*action_read)(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action);
+ int (*device_u8_read)(struct counter_device *counter, u8 *val);
+ int (*count_u8_read)(struct counter_device *counter,
+ struct counter_count *count, u8 *val);
+ int (*signal_u8_read)(struct counter_device *counter,
+ struct counter_signal *signal, u8 *val);
+ int (*device_u32_read)(struct counter_device *counter,
+ u32 *val);
+ int (*count_u32_read)(struct counter_device *counter,
+ struct counter_count *count, u32 *val);
+ int (*signal_u32_read)(struct counter_device *counter,
+ struct counter_signal *signal, u32 *val);
+ int (*device_u64_read)(struct counter_device *counter,
+ u64 *val);
+ int (*count_u64_read)(struct counter_device *counter,
+ struct counter_count *count, u64 *val);
+ int (*signal_u64_read)(struct counter_device *counter,
+ struct counter_signal *signal, u64 *val);
+ };
+ union {
+ int (*action_write)(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action action);
+ int (*device_u8_write)(struct counter_device *counter, u8 val);
+ int (*count_u8_write)(struct counter_device *counter,
+ struct counter_count *count, u8 val);
+ int (*signal_u8_write)(struct counter_device *counter,
+ struct counter_signal *signal, u8 val);
+ int (*device_u32_write)(struct counter_device *counter,
+ u32 val);
+ int (*count_u32_write)(struct counter_device *counter,
+ struct counter_count *count, u32 val);
+ int (*signal_u32_write)(struct counter_device *counter,
+ struct counter_signal *signal, u32 val);
+ int (*device_u64_write)(struct counter_device *counter,
+ u64 val);
+ int (*count_u64_write)(struct counter_device *counter,
+ struct counter_count *count, u64 val);
+ int (*signal_u64_write)(struct counter_device *counter,
+ struct counter_signal *signal, u64 val);
+ };
};
/**
@@ -51,248 +193,52 @@ struct counter_signal_ext {
* as it appears in the datasheet documentation
* @ext: optional array of Counter Signal extensions
* @num_ext: number of Counter Signal extensions specified in @ext
- * @priv: optional private data supplied by driver
*/
struct counter_signal {
int id;
const char *name;
- const struct counter_signal_ext *ext;
+ struct counter_comp *ext;
size_t num_ext;
-
- void *priv;
-};
-
-/**
- * struct counter_signal_enum_ext - Signal enum extension attribute
- * @items: Array of strings
- * @num_items: Number of items specified in @items
- * @set: Set callback function; may be NULL
- * @get: Get callback function; may be NULL
- *
- * The counter_signal_enum_ext structure can be used to implement enum style
- * Signal extension attributes. Enum style attributes are those which have a set
- * of strings that map to unsigned integer values. The Generic Counter Signal
- * enum extension helper code takes care of mapping between value and string, as
- * well as generating a "_available" file which contains a list of all available
- * items. The get callback is used to query the currently active item; the index
- * of the item within the respective items array is returned via the 'item'
- * parameter. The set callback is called when the attribute is updated; the
- * 'item' parameter contains the index of the newly activated item within the
- * respective items array.
- */
-struct counter_signal_enum_ext {
- const char * const *items;
- size_t num_items;
- int (*get)(struct counter_device *counter,
- struct counter_signal *signal, size_t *item);
- int (*set)(struct counter_device *counter,
- struct counter_signal *signal, size_t item);
-};
-
-/**
- * COUNTER_SIGNAL_ENUM() - Initialize Signal enum extension
- * @_name: Attribute name
- * @_e: Pointer to a counter_signal_enum_ext structure
- *
- * This should usually be used together with COUNTER_SIGNAL_ENUM_AVAILABLE()
- */
-#define COUNTER_SIGNAL_ENUM(_name, _e) \
-{ \
- .name = (_name), \
- .read = counter_signal_enum_read, \
- .write = counter_signal_enum_write, \
- .priv = (_e) \
-}
-
-/**
- * COUNTER_SIGNAL_ENUM_AVAILABLE() - Initialize Signal enum available extension
- * @_name: Attribute name ("_available" will be appended to the name)
- * @_e: Pointer to a counter_signal_enum_ext structure
- *
- * Creates a read only attribute that lists all the available enum items in a
- * newline separated list. This should usually be used together with
- * COUNTER_SIGNAL_ENUM()
- */
-#define COUNTER_SIGNAL_ENUM_AVAILABLE(_name, _e) \
-{ \
- .name = (_name "_available"), \
- .read = counter_signal_enum_available_read, \
- .priv = (_e) \
-}
-
-enum counter_synapse_action {
- COUNTER_SYNAPSE_ACTION_NONE = 0,
- COUNTER_SYNAPSE_ACTION_RISING_EDGE,
- COUNTER_SYNAPSE_ACTION_FALLING_EDGE,
- COUNTER_SYNAPSE_ACTION_BOTH_EDGES
};
/**
* struct counter_synapse - Counter Synapse node
- * @action: index of current action mode
* @actions_list: array of available action modes
* @num_actions: number of action modes specified in @actions_list
* @signal: pointer to associated signal
*/
struct counter_synapse {
- size_t action;
const enum counter_synapse_action *actions_list;
size_t num_actions;
struct counter_signal *signal;
};
-struct counter_count;
-
-/**
- * struct counter_count_ext - Counter Count extension
- * @name: attribute name
- * @read: read callback for this attribute; may be NULL
- * @write: write callback for this attribute; may be NULL
- * @priv: data private to the driver
- */
-struct counter_count_ext {
- const char *name;
- ssize_t (*read)(struct counter_device *counter,
- struct counter_count *count, void *priv, char *buf);
- ssize_t (*write)(struct counter_device *counter,
- struct counter_count *count, void *priv,
- const char *buf, size_t len);
- void *priv;
-};
-
-enum counter_function {
- COUNTER_FUNCTION_INCREASE = 0,
- COUNTER_FUNCTION_DECREASE,
- COUNTER_FUNCTION_PULSE_DIRECTION,
- COUNTER_FUNCTION_QUADRATURE_X1_A,
- COUNTER_FUNCTION_QUADRATURE_X1_B,
- COUNTER_FUNCTION_QUADRATURE_X2_A,
- COUNTER_FUNCTION_QUADRATURE_X2_B,
- COUNTER_FUNCTION_QUADRATURE_X4
-};
-
/**
* struct counter_count - Counter Count node
* @id: unique ID used to identify Count
* @name: device-specific Count name; ideally, this should match
* the name as it appears in the datasheet documentation
- * @function: index of current function mode
* @functions_list: array available function modes
* @num_functions: number of function modes specified in @functions_list
* @synapses: array of synapses for initialization
* @num_synapses: number of synapses specified in @synapses
* @ext: optional array of Counter Count extensions
* @num_ext: number of Counter Count extensions specified in @ext
- * @priv: optional private data supplied by driver
*/
struct counter_count {
int id;
const char *name;
- size_t function;
const enum counter_function *functions_list;
size_t num_functions;
struct counter_synapse *synapses;
size_t num_synapses;
- const struct counter_count_ext *ext;
+ struct counter_comp *ext;
size_t num_ext;
-
- void *priv;
-};
-
-/**
- * struct counter_count_enum_ext - Count enum extension attribute
- * @items: Array of strings
- * @num_items: Number of items specified in @items
- * @set: Set callback function; may be NULL
- * @get: Get callback function; may be NULL
- *
- * The counter_count_enum_ext structure can be used to implement enum style
- * Count extension attributes. Enum style attributes are those which have a set
- * of strings that map to unsigned integer values. The Generic Counter Count
- * enum extension helper code takes care of mapping between value and string, as
- * well as generating a "_available" file which contains a list of all available
- * items. The get callback is used to query the currently active item; the index
- * of the item within the respective items array is returned via the 'item'
- * parameter. The set callback is called when the attribute is updated; the
- * 'item' parameter contains the index of the newly activated item within the
- * respective items array.
- */
-struct counter_count_enum_ext {
- const char * const *items;
- size_t num_items;
- int (*get)(struct counter_device *counter, struct counter_count *count,
- size_t *item);
- int (*set)(struct counter_device *counter, struct counter_count *count,
- size_t item);
-};
-
-/**
- * COUNTER_COUNT_ENUM() - Initialize Count enum extension
- * @_name: Attribute name
- * @_e: Pointer to a counter_count_enum_ext structure
- *
- * This should usually be used together with COUNTER_COUNT_ENUM_AVAILABLE()
- */
-#define COUNTER_COUNT_ENUM(_name, _e) \
-{ \
- .name = (_name), \
- .read = counter_count_enum_read, \
- .write = counter_count_enum_write, \
- .priv = (_e) \
-}
-
-/**
- * COUNTER_COUNT_ENUM_AVAILABLE() - Initialize Count enum available extension
- * @_name: Attribute name ("_available" will be appended to the name)
- * @_e: Pointer to a counter_count_enum_ext structure
- *
- * Creates a read only attribute that lists all the available enum items in a
- * newline separated list. This should usually be used together with
- * COUNTER_COUNT_ENUM()
- */
-#define COUNTER_COUNT_ENUM_AVAILABLE(_name, _e) \
-{ \
- .name = (_name "_available"), \
- .read = counter_count_enum_available_read, \
- .priv = (_e) \
-}
-
-/**
- * struct counter_device_attr_group - internal container for attribute group
- * @attr_group: Counter sysfs attributes group
- * @attr_list: list to keep track of created Counter sysfs attributes
- * @num_attr: number of Counter sysfs attributes
- */
-struct counter_device_attr_group {
- struct attribute_group attr_group;
- struct list_head attr_list;
- size_t num_attr;
-};
-
-/**
- * struct counter_device_state - internal state container for a Counter device
- * @id: unique ID used to identify the Counter
- * @dev: internal device structure
- * @groups_list: attribute groups list (for Signals, Counts, and ext)
- * @num_groups: number of attribute groups containers
- * @groups: Counter sysfs attribute groups (to populate @dev.groups)
- */
-struct counter_device_state {
- int id;
- struct device dev;
- struct counter_device_attr_group *groups_list;
- size_t num_groups;
- const struct attribute_group **groups;
-};
-
-enum counter_signal_level {
- COUNTER_SIGNAL_LEVEL_LOW,
- COUNTER_SIGNAL_LEVEL_HIGH,
};
/**
@@ -306,117 +252,47 @@ enum counter_signal_level {
* @count_write: optional write callback for Count attribute. The write
* value for the respective Count is passed in via the val
* parameter.
- * @function_get: function to get the current count function mode. Returns
- * 0 on success and negative error code on error. The index
- * of the respective Count's returned function mode should
- * be passed back via the function parameter.
- * @function_set: function to set the count function mode. function is the
- * index of the requested function mode from the respective
- * Count's functions_list array.
- * @action_get: function to get the current action mode. Returns 0 on
- * success and negative error code on error. The index of
- * the respective Synapse's returned action mode should be
- * passed back via the action parameter.
- * @action_set: function to set the action mode. action is the index of
- * the requested action mode from the respective Synapse's
- * actions_list array.
+ * @function_read: read callback the Count function modes. The read
+ * function mode of the respective Count should be passed
+ * back via the function parameter.
+ * @function_write: write callback for Count function modes. The function
+ * mode to write for the respective Count is passed in via
+ * the function parameter.
+ * @action_read: read callback the Synapse action modes. The read action
+ * mode of the respective Synapse should be passed back via
+ * the action parameter.
+ * @action_write: write callback for Synapse action modes. The action mode
+ * to write for the respective Synapse is passed in via the
+ * action parameter.
*/
struct counter_ops {
int (*signal_read)(struct counter_device *counter,
struct counter_signal *signal,
enum counter_signal_level *level);
int (*count_read)(struct counter_device *counter,
- struct counter_count *count, unsigned long *val);
+ struct counter_count *count, u64 *value);
int (*count_write)(struct counter_device *counter,
- struct counter_count *count, unsigned long val);
- int (*function_get)(struct counter_device *counter,
- struct counter_count *count, size_t *function);
- int (*function_set)(struct counter_device *counter,
- struct counter_count *count, size_t function);
- int (*action_get)(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse, size_t *action);
- int (*action_set)(struct counter_device *counter,
- struct counter_count *count,
- struct counter_synapse *synapse, size_t action);
-};
-
-/**
- * struct counter_device_ext - Counter device extension
- * @name: attribute name
- * @read: read callback for this attribute; may be NULL
- * @write: write callback for this attribute; may be NULL
- * @priv: data private to the driver
- */
-struct counter_device_ext {
- const char *name;
- ssize_t (*read)(struct counter_device *counter, void *priv, char *buf);
- ssize_t (*write)(struct counter_device *counter, void *priv,
- const char *buf, size_t len);
- void *priv;
+ struct counter_count *count, u64 value);
+ int (*function_read)(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function *function);
+ int (*function_write)(struct counter_device *counter,
+ struct counter_count *count,
+ enum counter_function function);
+ int (*action_read)(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action *action);
+ int (*action_write)(struct counter_device *counter,
+ struct counter_count *count,
+ struct counter_synapse *synapse,
+ enum counter_synapse_action action);
};
-/**
- * struct counter_device_enum_ext - Counter enum extension attribute
- * @items: Array of strings
- * @num_items: Number of items specified in @items
- * @set: Set callback function; may be NULL
- * @get: Get callback function; may be NULL
- *
- * The counter_device_enum_ext structure can be used to implement enum style
- * Counter extension attributes. Enum style attributes are those which have a
- * set of strings that map to unsigned integer values. The Generic Counter enum
- * extension helper code takes care of mapping between value and string, as well
- * as generating a "_available" file which contains a list of all available
- * items. The get callback is used to query the currently active item; the index
- * of the item within the respective items array is returned via the 'item'
- * parameter. The set callback is called when the attribute is updated; the
- * 'item' parameter contains the index of the newly activated item within the
- * respective items array.
- */
-struct counter_device_enum_ext {
- const char * const *items;
- size_t num_items;
- int (*get)(struct counter_device *counter, size_t *item);
- int (*set)(struct counter_device *counter, size_t item);
-};
-
-/**
- * COUNTER_DEVICE_ENUM() - Initialize Counter enum extension
- * @_name: Attribute name
- * @_e: Pointer to a counter_device_enum_ext structure
- *
- * This should usually be used together with COUNTER_DEVICE_ENUM_AVAILABLE()
- */
-#define COUNTER_DEVICE_ENUM(_name, _e) \
-{ \
- .name = (_name), \
- .read = counter_device_enum_read, \
- .write = counter_device_enum_write, \
- .priv = (_e) \
-}
-
-/**
- * COUNTER_DEVICE_ENUM_AVAILABLE() - Initialize Counter enum available extension
- * @_name: Attribute name ("_available" will be appended to the name)
- * @_e: Pointer to a counter_device_enum_ext structure
- *
- * Creates a read only attribute that lists all the available enum items in a
- * newline separated list. This should usually be used together with
- * COUNTER_DEVICE_ENUM()
- */
-#define COUNTER_DEVICE_ENUM_AVAILABLE(_name, _e) \
-{ \
- .name = (_name "_available"), \
- .read = counter_device_enum_available_read, \
- .priv = (_e) \
-}
-
/**
* struct counter_device - Counter data structure
* @name: name of the device as it appears in the datasheet
* @parent: optional parent device providing the counters
- * @device_state: internal device state container
* @ops: callbacks from driver
* @signals: array of Signals
* @num_signals: number of Signals specified in @signals
@@ -425,11 +301,11 @@ struct counter_device_enum_ext {
* @ext: optional array of Counter device extensions
* @num_ext: number of Counter device extensions specified in @ext
* @priv: optional private data supplied by driver
+ * @dev: internal device structure
*/
struct counter_device {
const char *name;
struct device *parent;
- struct counter_device_state *device_state;
const struct counter_ops *ops;
@@ -438,17 +314,159 @@ struct counter_device {
struct counter_count *counts;
size_t num_counts;
- const struct counter_device_ext *ext;
+ struct counter_comp *ext;
size_t num_ext;
void *priv;
+
+ struct device dev;
};
int counter_register(struct counter_device *const counter);
void counter_unregister(struct counter_device *const counter);
int devm_counter_register(struct device *dev,
struct counter_device *const counter);
-void devm_counter_unregister(struct device *dev,
- struct counter_device *const counter);
+
+#define COUNTER_COMP_DEVICE_U8(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_U8, \
+ .name = (_name), \
+ .device_u8_read = (_read), \
+ .device_u8_write = (_write), \
+}
+#define COUNTER_COMP_COUNT_U8(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_U8, \
+ .name = (_name), \
+ .count_u8_read = (_read), \
+ .count_u8_write = (_write), \
+}
+#define COUNTER_COMP_SIGNAL_U8(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_U8, \
+ .name = (_name), \
+ .signal_u8_read = (_read), \
+ .signal_u8_write = (_write), \
+}
+
+#define COUNTER_COMP_DEVICE_U64(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_U64, \
+ .name = (_name), \
+ .device_u64_read = (_read), \
+ .device_u64_write = (_write), \
+}
+#define COUNTER_COMP_COUNT_U64(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_U64, \
+ .name = (_name), \
+ .count_u64_read = (_read), \
+ .count_u64_write = (_write), \
+}
+#define COUNTER_COMP_SIGNAL_U64(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_U64, \
+ .name = (_name), \
+ .signal_u64_read = (_read), \
+ .signal_u64_write = (_write), \
+}
+
+#define COUNTER_COMP_DEVICE_BOOL(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_BOOL, \
+ .name = (_name), \
+ .device_u8_read = (_read), \
+ .device_u8_write = (_write), \
+}
+#define COUNTER_COMP_COUNT_BOOL(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_BOOL, \
+ .name = (_name), \
+ .count_u8_read = (_read), \
+ .count_u8_write = (_write), \
+}
+#define COUNTER_COMP_SIGNAL_BOOL(_name, _read, _write) \
+{ \
+ .type = COUNTER_COMP_BOOL, \
+ .name = (_name), \
+ .signal_u8_read = (_read), \
+ .signal_u8_write = (_write), \
+}
+
+struct counter_available {
+ union {
+ const u32 *enums;
+ const char *const *strs;
+ };
+ size_t num_items;
+};
+
+#define DEFINE_COUNTER_AVAILABLE(_name, _enums) \
+ struct counter_available _name = { \
+ .enums = (_enums), \
+ .num_items = ARRAY_SIZE(_enums), \
+ }
+
+#define DEFINE_COUNTER_ENUM(_name, _strs) \
+ struct counter_available _name = { \
+ .strs = (_strs), \
+ .num_items = ARRAY_SIZE(_strs), \
+ }
+
+#define COUNTER_COMP_DEVICE_ENUM(_name, _get, _set, _available) \
+{ \
+ .type = COUNTER_COMP_ENUM, \
+ .name = (_name), \
+ .device_u32_read = (_get), \
+ .device_u32_write = (_set), \
+ .priv = &(_available), \
+}
+#define COUNTER_COMP_COUNT_ENUM(_name, _get, _set, _available) \
+{ \
+ .type = COUNTER_COMP_ENUM, \
+ .name = (_name), \
+ .count_u32_read = (_get), \
+ .count_u32_write = (_set), \
+ .priv = &(_available), \
+}
+#define COUNTER_COMP_SIGNAL_ENUM(_name, _get, _set, _available) \
+{ \
+ .type = COUNTER_COMP_ENUM, \
+ .name = (_name), \
+ .signal_u32_read = (_get), \
+ .signal_u32_write = (_set), \
+ .priv = &(_available), \
+}
+
+#define COUNTER_COMP_CEILING(_read, _write) \
+ COUNTER_COMP_COUNT_U64("ceiling", _read, _write)
+
+#define COUNTER_COMP_COUNT_MODE(_read, _write, _available) \
+{ \
+ .type = COUNTER_COMP_COUNT_MODE, \
+ .name = "count_mode", \
+ .count_u32_read = (_read), \
+ .count_u32_write = (_write), \
+ .priv = &(_available), \
+}
+
+#define COUNTER_COMP_DIRECTION(_read) \
+{ \
+ .type = COUNTER_COMP_COUNT_DIRECTION, \
+ .name = "direction", \
+ .count_u32_read = (_read), \
+}
+
+#define COUNTER_COMP_ENABLE(_read, _write) \
+ COUNTER_COMP_COUNT_BOOL("enable", _read, _write)
+
+#define COUNTER_COMP_FLOOR(_read, _write) \
+ COUNTER_COMP_COUNT_U64("floor", _read, _write)
+
+#define COUNTER_COMP_PRESET(_read, _write) \
+ COUNTER_COMP_COUNT_U64("preset", _read, _write)
+
+#define COUNTER_COMP_PRESET_ENABLE(_read, _write) \
+ COUNTER_COMP_COUNT_BOOL("preset_enable", _read, _write)
#endif /* _COUNTER_H_ */
diff --git a/include/linux/counter_enum.h b/include/linux/counter_enum.h
deleted file mode 100644
index 9f917298a88f..000000000000
--- a/include/linux/counter_enum.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Counter interface enum functions
- * Copyright (C) 2018 William Breathitt Gray
- */
-#ifndef _COUNTER_ENUM_H_
-#define _COUNTER_ENUM_H_
-
-#include <linux/types.h>
-
-struct counter_device;
-struct counter_signal;
-struct counter_count;
-
-ssize_t counter_signal_enum_read(struct counter_device *counter,
- struct counter_signal *signal, void *priv,
- char *buf);
-ssize_t counter_signal_enum_write(struct counter_device *counter,
- struct counter_signal *signal, void *priv,
- const char *buf, size_t len);
-
-ssize_t counter_signal_enum_available_read(struct counter_device *counter,
- struct counter_signal *signal,
- void *priv, char *buf);
-
-ssize_t counter_count_enum_read(struct counter_device *counter,
- struct counter_count *count, void *priv,
- char *buf);
-ssize_t counter_count_enum_write(struct counter_device *counter,
- struct counter_count *count, void *priv,
- const char *buf, size_t len);
-
-ssize_t counter_count_enum_available_read(struct counter_device *counter,
- struct counter_count *count,
- void *priv, char *buf);
-
-ssize_t counter_device_enum_read(struct counter_device *counter, void *priv,
- char *buf);
-ssize_t counter_device_enum_write(struct counter_device *counter, void *priv,
- const char *buf, size_t len);
-
-ssize_t counter_device_enum_available_read(struct counter_device *counter,
- void *priv, char *buf);
-
-#endif /* _COUNTER_ENUM_H_ */
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index cf042d41c87b..88c289ce3039 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -390,8 +390,8 @@ extern note_buf_t __percpu *crash_notes;
extern bool kexec_in_progress;
int crash_shrink_memory(unsigned long new_size);
-size_t crash_get_memory_size(void);
void crash_free_reserved_phys_range(unsigned long begin, unsigned long end);
+ssize_t crash_get_memory_size(void);
void arch_kexec_protect_crashkres(void);
void arch_kexec_unprotect_crashkres(void);
diff --git a/include/linux/mfd/stm32-lptimer.h b/include/linux/mfd/stm32-lptimer.h
index 90b20550c1c8..06d3f11dc3c9 100644
--- a/include/linux/mfd/stm32-lptimer.h
+++ b/include/linux/mfd/stm32-lptimer.h
@@ -45,6 +45,11 @@
#define STM32_LPTIM_PRESC GENMASK(11, 9)
#define STM32_LPTIM_CKPOL GENMASK(2, 1)
+/* STM32_LPTIM_CKPOL */
+#define STM32_LPTIM_CKPOL_RISING_EDGE 0
+#define STM32_LPTIM_CKPOL_FALLING_EDGE 1
+#define STM32_LPTIM_CKPOL_BOTH_EDGES 2
+
/* STM32_LPTIM_ARR */
#define STM32_LPTIM_MAX_ARR 0xFFFF
diff --git a/include/linux/mfd/stm32-timers.h b/include/linux/mfd/stm32-timers.h
index f8db83aedb2b..5f5c43fd69dd 100644
--- a/include/linux/mfd/stm32-timers.h
+++ b/include/linux/mfd/stm32-timers.h
@@ -82,6 +82,10 @@
#define MAX_TIM_ICPSC 0x3
#define TIM_CR2_MMS_SHIFT 4
#define TIM_CR2_MMS2_SHIFT 20
+#define TIM_SMCR_SMS_SLAVE_MODE_DISABLED 0 /* counts on internal clock when CEN=1 */
+#define TIM_SMCR_SMS_ENCODER_MODE_1 1 /* counts TI1FP1 edges, depending on TI2FP2 level */
+#define TIM_SMCR_SMS_ENCODER_MODE_2 2 /* counts TI2FP2 edges, depending on TI1FP1 level */
+#define TIM_SMCR_SMS_ENCODER_MODE_3 3 /* counts on both TI1FP1 and TI2FP2 edges */
#define TIM_SMCR_TS_SHIFT 4
#define TIM_BDTR_BKF_MASK 0xF
#define TIM_BDTR_BKF_SHIFT(x) (16 + (x) * 4)
diff --git a/include/linux/trace.h b/include/linux/trace.h
index 80ffda871749..2a70a447184c 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -33,6 +33,18 @@ struct trace_array;
int register_ftrace_export(struct trace_export *export);
int unregister_ftrace_export(struct trace_export *export);
+/**
+ * trace_array_puts - write a constant string into the trace buffer.
+ * @tr: The trace array to write to
+ * @str: The constant string to write
+ */
+#define trace_array_puts(tr, str) \
+ ({ \
+ str ? __trace_array_puts(tr, _THIS_IP_, str, strlen(str)) : -1; \
+ })
+int __trace_array_puts(struct trace_array *tr, unsigned long ip,
+ const char *str, int size);
+
void trace_printk_init_buffers(void);
__printf(3, 4)
int trace_array_printk(struct trace_array *tr, unsigned long ip,
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 428820bf141d..fb895eaf3a7c 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -2225,11 +2225,15 @@ static int cpuset_can_attach(struct cgroup_taskset *tset)
static void cpuset_cancel_attach(struct cgroup_taskset *tset)
{
struct cgroup_subsys_state *css;
+ struct cpuset *cs;
cgroup_taskset_first(tset, &css);
+ cs = css_cs(css);
percpu_down_write(&cpuset_rwsem);
- css_cs(css)->attach_in_progress--;
+ cs->attach_in_progress--;
+ if (!cs->attach_in_progress)
+ wake_up(&cpuset_attach_wq);
percpu_up_write(&cpuset_rwsem);
}
diff --git a/kernel/kexec.c b/kernel/kexec.c
index b5e40f069768..cb8e6e6f983c 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -93,13 +93,10 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments,
/*
* Because we write directly to the reserved memory region when loading
- * crash kernels we need a mutex here to prevent multiple crash kernels
- * from attempting to load simultaneously, and to prevent a crash kernel
- * from loading over the top of a in use crash kernel.
- *
- * KISS: always take the mutex.
+ * crash kernels we need a serialization here to prevent multiple crash
+ * kernels from attempting to load simultaneously.
*/
- if (!mutex_trylock(&kexec_mutex))
+ if (!kexec_trylock())
return -EBUSY;
if (flags & KEXEC_ON_CRASH) {
@@ -165,7 +162,7 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments,
kimage_free(image);
out_unlock:
- mutex_unlock(&kexec_mutex);
+ kexec_unlock();
return ret;
}
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 5a5d192a89ac..bdc2d952911c 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -46,7 +46,7 @@
#include <crypto/hash.h>
#include "kexec_internal.h"
-DEFINE_MUTEX(kexec_mutex);
+atomic_t __kexec_lock = ATOMIC_INIT(0);
/* Per cpu memory for storing cpu states in case of system crash. */
note_buf_t __percpu *crash_notes;
@@ -944,7 +944,7 @@ int kexec_load_disabled;
*/
void __noclone __crash_kexec(struct pt_regs *regs)
{
- /* Take the kexec_mutex here to prevent sys_kexec_load
+ /* Take the kexec_lock here to prevent sys_kexec_load
* running on one cpu from replacing the crash kernel
* we are using after a panic on a different cpu.
*
@@ -952,7 +952,7 @@ void __noclone __crash_kexec(struct pt_regs *regs)
* of memory the xchg(&kexec_crash_image) would be
* sufficient. But since I reuse the memory...
*/
- if (mutex_trylock(&kexec_mutex)) {
+ if (kexec_trylock()) {
if (kexec_crash_image) {
struct pt_regs fixed_regs;
@@ -961,7 +961,7 @@ void __noclone __crash_kexec(struct pt_regs *regs)
machine_crash_shutdown(&fixed_regs);
machine_kexec(kexec_crash_image);
}
- mutex_unlock(&kexec_mutex);
+ kexec_unlock();
}
}
STACK_FRAME_NON_STANDARD(__crash_kexec);
@@ -989,14 +989,17 @@ void crash_kexec(struct pt_regs *regs)
}
}
-size_t crash_get_memory_size(void)
+ssize_t crash_get_memory_size(void)
{
- size_t size = 0;
+ ssize_t size = 0;
+
+ if (!kexec_trylock())
+ return -EBUSY;
- mutex_lock(&kexec_mutex);
if (crashk_res.end != crashk_res.start)
size = resource_size(&crashk_res);
- mutex_unlock(&kexec_mutex);
+
+ kexec_unlock();
return size;
}
@@ -1016,7 +1019,8 @@ int crash_shrink_memory(unsigned long new_size)
unsigned long old_size;
struct resource *ram_res;
- mutex_lock(&kexec_mutex);
+ if (!kexec_trylock())
+ return -EBUSY;
if (kexec_crash_image) {
ret = -ENOENT;
@@ -1054,7 +1058,7 @@ int crash_shrink_memory(unsigned long new_size)
insert_resource(&iomem_resource, ram_res);
unlock:
- mutex_unlock(&kexec_mutex);
+ kexec_unlock();
return ret;
}
@@ -1126,7 +1130,7 @@ int kernel_kexec(void)
{
int error = 0;
- if (!mutex_trylock(&kexec_mutex))
+ if (!kexec_trylock())
return -EBUSY;
if (!kexec_image) {
error = -EINVAL;
@@ -1202,7 +1206,7 @@ int kernel_kexec(void)
#endif
Unlock:
- mutex_unlock(&kexec_mutex);
+ kexec_unlock();
return error;
}
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index f7a4fd4d243f..1fb7ff690577 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -343,7 +343,7 @@ SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
image = NULL;
- if (!mutex_trylock(&kexec_mutex))
+ if (!kexec_trylock())
return -EBUSY;
dest_image = &kexec_image;
@@ -415,7 +415,7 @@ SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
if ((flags & KEXEC_FILE_ON_CRASH) && kexec_crash_image)
arch_kexec_protect_crashkres();
- mutex_unlock(&kexec_mutex);
+ kexec_unlock();
kimage_free(image);
return ret;
}
diff --git a/kernel/kexec_internal.h b/kernel/kexec_internal.h
index 48aaf2ac0d0d..74da1409cd14 100644
--- a/kernel/kexec_internal.h
+++ b/kernel/kexec_internal.h
@@ -13,7 +13,20 @@ void kimage_terminate(struct kimage *image);
int kimage_is_destination_range(struct kimage *image,
unsigned long start, unsigned long end);
-extern struct mutex kexec_mutex;
+/*
+ * Whatever is used to serialize accesses to the kexec_crash_image needs to be
+ * NMI safe, as __crash_kexec() can happen during nmi_panic(), so here we use a
+ * "simple" atomic variable that is acquired with a cmpxchg().
+ */
+extern atomic_t __kexec_lock;
+static inline bool kexec_trylock(void)
+{
+ return atomic_cmpxchg_acquire(&__kexec_lock, 0, 1) == 0;
+}
+static inline void kexec_unlock(void)
+{
+ atomic_set_release(&__kexec_lock, 0);
+}
#ifdef CONFIG_KEXEC_FILE
#include <linux/purgatory.h>
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index 35859da8bd4f..e20c19e3ba49 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -106,7 +106,12 @@ KERNEL_ATTR_RO(kexec_crash_loaded);
static ssize_t kexec_crash_size_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
- return sprintf(buf, "%zu\n", crash_get_memory_size());
+ ssize_t size = crash_get_memory_size();
+
+ if (size < 0)
+ return size;
+
+ return sprintf(buf, "%zd\n", size);
}
static ssize_t kexec_crash_size_store(struct kobject *kobj,
struct kobj_attribute *attr,
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8f5a5e72bdb3..7ac00dede846 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -9636,8 +9636,6 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
local->avg_load = (local->group_load * SCHED_CAPACITY_SCALE) /
local->group_capacity;
- sds->avg_load = (sds->total_load * SCHED_CAPACITY_SCALE) /
- sds->total_capacity;
/*
* If the local group is more loaded than the selected
* busiest group don't try to pull any tasks.
@@ -9646,6 +9644,19 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
env->imbalance = 0;
return;
}
+
+ sds->avg_load = (sds->total_load * SCHED_CAPACITY_SCALE) /
+ sds->total_capacity;
+
+ /*
+ * If the local group is more loaded than the average system
+ * load, don't try to pull any tasks.
+ */
+ if (local->avg_load >= sds->avg_load) {
+ env->imbalance = 0;
+ return;
+ }
+
}
/*
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index dc097bd23dc3..e2277cba4817 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -990,13 +990,8 @@ __buffer_unlock_commit(struct trace_buffer *buffer, struct ring_buffer_event *ev
ring_buffer_unlock_commit(buffer, event);
}
-/**
- * __trace_puts - write a constant string into the trace buffer.
- * @ip: The address of the caller
- * @str: The constant string to write
- * @size: The size of the string.
- */
-int __trace_puts(unsigned long ip, const char *str, int size)
+int __trace_array_puts(struct trace_array *tr, unsigned long ip,
+ const char *str, int size)
{
struct ring_buffer_event *event;
struct trace_buffer *buffer;
@@ -1004,7 +999,7 @@ int __trace_puts(unsigned long ip, const char *str, int size)
unsigned int trace_ctx;
int alloc;
- if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
+ if (!(tr->trace_flags & TRACE_ITER_PRINTK))
return 0;
if (unlikely(tracing_selftest_running || tracing_disabled))
@@ -1013,7 +1008,7 @@ int __trace_puts(unsigned long ip, const char *str, int size)
alloc = sizeof(*entry) + size + 2; /* possible \n added */
trace_ctx = tracing_gen_ctx();
- buffer = global_trace.array_buffer.buffer;
+ buffer = tr->array_buffer.buffer;
ring_buffer_nest_start(buffer);
event = __trace_buffer_lock_reserve(buffer, TRACE_PRINT, alloc,
trace_ctx);
@@ -1035,11 +1030,23 @@ int __trace_puts(unsigned long ip, const char *str, int size)
entry->buf[size] = '\0';
__buffer_unlock_commit(buffer, event);
- ftrace_trace_stack(&global_trace, buffer, trace_ctx, 4, NULL);
+ ftrace_trace_stack(tr, buffer, trace_ctx, 4, NULL);
out:
ring_buffer_nest_end(buffer);
return size;
}
+EXPORT_SYMBOL_GPL(__trace_array_puts);
+
+/**
+ * __trace_puts - write a constant string into the trace buffer.
+ * @ip: The address of the caller
+ * @str: The constant string to write
+ * @size: The size of the string.
+ */
+int __trace_puts(unsigned long ip, const char *str, int size)
+{
+ return __trace_array_puts(&global_trace, ip, str, size);
+}
EXPORT_SYMBOL_GPL(__trace_puts);
/**
@@ -1093,22 +1100,22 @@ static void tracing_snapshot_instance_cond(struct trace_array *tr,
unsigned long flags;
if (in_nmi()) {
- internal_trace_puts("*** SNAPSHOT CALLED FROM NMI CONTEXT ***\n");
- internal_trace_puts("*** snapshot is being ignored ***\n");
+ trace_array_puts(tr, "*** SNAPSHOT CALLED FROM NMI CONTEXT ***\n");
+ trace_array_puts(tr, "*** snapshot is being ignored ***\n");
return;
}
if (!tr->allocated_snapshot) {
- internal_trace_puts("*** SNAPSHOT NOT ALLOCATED ***\n");
- internal_trace_puts("*** stopping trace here! ***\n");
- tracing_off();
+ trace_array_puts(tr, "*** SNAPSHOT NOT ALLOCATED ***\n");
+ trace_array_puts(tr, "*** stopping trace here! ***\n");
+ tracer_tracing_off(tr);
return;
}
/* Note, snapshot can not be used when the tracer uses it */
if (tracer->use_max_tr) {
- internal_trace_puts("*** LATENCY TRACER ACTIVE ***\n");
- internal_trace_puts("*** Can not use snapshot (sorry) ***\n");
+ trace_array_puts(tr, "*** LATENCY TRACER ACTIVE ***\n");
+ trace_array_puts(tr, "*** Can not use snapshot (sorry) ***\n");
return;
}
diff --git a/net/9p/trans_xen.c b/net/9p/trans_xen.c
index 9e4da8c1b907..99e6b2483311 100644
--- a/net/9p/trans_xen.c
+++ b/net/9p/trans_xen.c
@@ -300,6 +300,10 @@ static void xen_9pfs_front_free(struct xen_9pfs_front_priv *priv)
write_unlock(&xen_9pfs_lock);
for (i = 0; i < priv->num_rings; i++) {
+ struct xen_9pfs_dataring *ring = &priv->rings[i];
+
+ cancel_work_sync(&ring->work);
+
if (!priv->rings[i].intf)
break;
if (priv->rings[i].irq > 0)
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 80848dfc01db..021ab957a5c4 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -433,7 +433,7 @@ static void hidp_set_timer(struct hidp_session *session)
static void hidp_del_timer(struct hidp_session *session)
{
if (session->idle_to > 0)
- del_timer(&session->timer);
+ del_timer_sync(&session->timer);
}
static void hidp_process_report(struct hidp_session *session, int type,
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0194c25b8dc5..446343348329 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4652,33 +4652,27 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
BT_DBG("scid 0x%4.4x dcid 0x%4.4x", scid, dcid);
- mutex_lock(&conn->chan_lock);
-
- chan = __l2cap_get_chan_by_scid(conn, dcid);
+ chan = l2cap_get_chan_by_scid(conn, dcid);
if (!chan) {
- mutex_unlock(&conn->chan_lock);
cmd_reject_invalid_cid(conn, cmd->ident, dcid, scid);
return 0;
}
- l2cap_chan_hold(chan);
- l2cap_chan_lock(chan);
-
rsp.dcid = cpu_to_le16(chan->scid);
rsp.scid = cpu_to_le16(chan->dcid);
l2cap_send_cmd(conn, cmd->ident, L2CAP_DISCONN_RSP, sizeof(rsp), &rsp);
chan->ops->set_shutdown(chan);
+ mutex_lock(&conn->chan_lock);
l2cap_chan_del(chan, ECONNRESET);
+ mutex_unlock(&conn->chan_lock);
chan->ops->close(chan);
l2cap_chan_unlock(chan);
l2cap_chan_put(chan);
- mutex_unlock(&conn->chan_lock);
-
return 0;
}
@@ -4698,33 +4692,27 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn,
BT_DBG("dcid 0x%4.4x scid 0x%4.4x", dcid, scid);
- mutex_lock(&conn->chan_lock);
-
- chan = __l2cap_get_chan_by_scid(conn, scid);
+ chan = l2cap_get_chan_by_scid(conn, scid);
if (!chan) {
mutex_unlock(&conn->chan_lock);
return 0;
}
- l2cap_chan_hold(chan);
- l2cap_chan_lock(chan);
-
if (chan->state != BT_DISCONN) {
l2cap_chan_unlock(chan);
l2cap_chan_put(chan);
- mutex_unlock(&conn->chan_lock);
return 0;
}
+ mutex_lock(&conn->chan_lock);
l2cap_chan_del(chan, 0);
+ mutex_unlock(&conn->chan_lock);
chan->ops->close(chan);
l2cap_chan_unlock(chan);
l2cap_chan_put(chan);
- mutex_unlock(&conn->chan_lock);
-
return 0;
}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2d3f82b62236..46cc3a7632f7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5397,18 +5397,18 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
if (skb_cloned(to))
return false;
- /* In general, avoid mixing slab allocated and page_pool allocated
- * pages within the same SKB. However when @to is not pp_recycle and
- * @from is cloned, we can transition frag pages from page_pool to
- * reference counted.
- *
- * On the other hand, don't allow coalescing two pp_recycle SKBs if
- * @from is cloned, in case the SKB is using page_pool fragment
+ /* In general, avoid mixing page_pool and non-page_pool allocated
+ * pages within the same SKB. Additionally avoid dealing with clones
+ * with page_pool pages, in case the SKB is using page_pool fragment
* references (PP_FLAG_PAGE_FRAG). Since we only take full page
* references for cloned SKBs at the moment that would result in
* inconsistent reference counts.
+ * In theory we could take full references if @from is cloned and
+ * !@to->pp_recycle but its tricky (due to potential race with
+ * the clone disappearing) and rare, so not worth dealing with.
*/
- if (to->pp_recycle != (from->pp_recycle && !skb_cloned(from)))
+ if (to->pp_recycle != from->pp_recycle ||
+ (from->pp_recycle && skb_cloned(from)))
return false;
if (len <= skb_tailroom(to)) {
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 495c58e442e2..1f22e72074fd 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -38,6 +38,7 @@ static int ip_local_port_range_min[] = { 1, 1 };
static int ip_local_port_range_max[] = { 65535, 65535 };
static int tcp_adv_win_scale_min = -31;
static int tcp_adv_win_scale_max = 31;
+static int tcp_app_win_max = 31;
static int tcp_min_snd_mss_min = TCP_MIN_SND_MSS;
static int tcp_min_snd_mss_max = 65535;
static int ip_privileged_port_min;
@@ -1168,6 +1169,8 @@ static struct ctl_table ipv4_net_table[] = {
.maxlen = sizeof(u8),
.mode = 0644,
.proc_handler = proc_dou8vec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = &tcp_app_win_max,
},
{
.procname = "tcp_adv_win_scale",
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 0e1fbad17dbe..63472c9b39ae 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2760,7 +2760,7 @@ static int tcp_prog_seq_show(struct bpf_prog *prog, struct bpf_iter_meta *meta,
static void bpf_iter_tcp_put_batch(struct bpf_tcp_iter_state *iter)
{
while (iter->cur_sk < iter->end_sk)
- sock_put(iter->batch[iter->cur_sk++]);
+ sock_gen_put(iter->batch[iter->cur_sk++]);
}
static int bpf_iter_tcp_realloc_batch(struct bpf_tcp_iter_state *iter,
@@ -2919,7 +2919,7 @@ static void *bpf_iter_tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
* st->bucket. See tcp_seek_last_pos().
*/
st->offset++;
- sock_put(iter->batch[iter->cur_sk++]);
+ sock_gen_put(iter->batch[iter->cur_sk++]);
}
if (iter->cur_sk < iter->end_sk)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 9dfb4bb54344..921129c3df8a 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1359,9 +1359,11 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
msg->msg_name = &sin;
msg->msg_namelen = sizeof(sin);
do_udp_sendmsg:
- if (__ipv6_only_sock(sk))
- return -ENETUNREACH;
- return udp_sendmsg(sk, msg, len);
+ err = __ipv6_only_sock(sk) ?
+ -ENETUNREACH : udp_sendmsg(sk, msg, len);
+ msg->msg_name = sin6;
+ msg->msg_namelen = addr_len;
+ return err;
}
}
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 193f0fcce8d8..aa4b0cf7c638 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -1156,9 +1156,8 @@ bool mptcp_incoming_options(struct sock *sk, struct sk_buff *skb)
*/
if (TCP_SKB_CB(skb)->seq == TCP_SKB_CB(skb)->end_seq) {
if (mp_opt.data_fin && mp_opt.data_len == 1 &&
- mptcp_update_rcv_data_fin(msk, mp_opt.data_seq, mp_opt.dsn64) &&
- schedule_work(&msk->work))
- sock_hold(subflow->conn);
+ mptcp_update_rcv_data_fin(msk, mp_opt.data_seq, mp_opt.dsn64))
+ mptcp_schedule_work((struct sock *)msk);
return true;
}
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 5d05d85242bc..4c4577775c5d 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2448,7 +2448,7 @@ static void mptcp_worker(struct work_struct *work)
lock_sock(sk);
state = sk->sk_state;
- if (unlikely(state == TCP_CLOSE))
+ if (unlikely((1 << state) & (TCPF_CLOSE | TCPF_LISTEN)))
goto unlock;
mptcp_check_data_fin_ack(sk);
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 232f437770a6..9b89999062c9 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -360,9 +360,8 @@ void mptcp_subflow_reset(struct sock *ssk)
tcp_send_active_reset(ssk, GFP_ATOMIC);
tcp_done(ssk);
- if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags) &&
- schedule_work(&mptcp_sk(sk)->work))
- return; /* worker will put sk for us */
+ if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags))
+ mptcp_schedule_work(sk);
sock_put(sk);
}
@@ -1010,8 +1009,8 @@ static enum mapping_status get_mapping_status(struct sock *ssk,
skb_ext_del(skb, SKB_EXT_MPTCP);
return MAPPING_OK;
} else {
- if (updated && schedule_work(&msk->work))
- sock_hold((struct sock *)msk);
+ if (updated)
+ mptcp_schedule_work((struct sock *)msk);
return MAPPING_DATA_FIN;
}
@@ -1114,17 +1113,12 @@ static void mptcp_subflow_discard_data(struct sock *ssk, struct sk_buff *skb,
/* sched mptcp worker to remove the subflow if no more data is pending */
static void subflow_sched_work_if_closed(struct mptcp_sock *msk, struct sock *ssk)
{
- struct sock *sk = (struct sock *)msk;
-
if (likely(ssk->sk_state != TCP_CLOSE))
return;
if (skb_queue_empty(&ssk->sk_receive_queue) &&
- !test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &msk->flags)) {
- sock_hold(sk);
- if (!schedule_work(&msk->work))
- sock_put(sk);
- }
+ !test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &msk->flags))
+ mptcp_schedule_work((struct sock *)msk);
}
static bool subflow_can_fallback(struct mptcp_subflow_context *subflow)
diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c
index 6e88ba812d2a..e0a27a404404 100644
--- a/net/qrtr/af_qrtr.c
+++ b/net/qrtr/af_qrtr.c
@@ -498,6 +498,11 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len)
if (!size || len != ALIGN(size, 4) + hdrlen)
goto err;
+ if ((cb->type == QRTR_TYPE_NEW_SERVER ||
+ cb->type == QRTR_TYPE_RESUME_TX) &&
+ size < sizeof(struct qrtr_ctrl_pkt))
+ goto err;
+
if (cb->dst_port != QRTR_PORT_CTRL && cb->type != QRTR_TYPE_DATA &&
cb->type != QRTR_TYPE_RESUME_TX)
goto err;
@@ -510,9 +515,6 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len)
/* Remote node endpoint can bridge other distant nodes */
const struct qrtr_ctrl_pkt *pkt;
- if (size < sizeof(*pkt))
- goto err;
-
pkt = data + hdrlen;
qrtr_node_assign(node, le32_to_cpu(pkt->server.node));
}
diff --git a/net/sctp/stream_interleave.c b/net/sctp/stream_interleave.c
index 6b13f737ebf2..e3aad75cb11d 100644
--- a/net/sctp/stream_interleave.c
+++ b/net/sctp/stream_interleave.c
@@ -1162,7 +1162,8 @@ static void sctp_generate_iftsn(struct sctp_outq *q, __u32 ctsn)
#define _sctp_walk_ifwdtsn(pos, chunk, end) \
for (pos = chunk->subh.ifwdtsn_hdr->skip; \
- (void *)pos < (void *)chunk->subh.ifwdtsn_hdr->skip + (end); pos++)
+ (void *)pos <= (void *)chunk->subh.ifwdtsn_hdr->skip + (end) - \
+ sizeof(struct sctp_ifwdtsn_skip); pos++)
#define sctp_walk_ifwdtsn(pos, ch) \
_sctp_walk_ifwdtsn((pos), (ch), ntohs((ch)->chunk_hdr->length) - \
diff --git a/sound/firewire/tascam/tascam-stream.c b/sound/firewire/tascam/tascam-stream.c
index 53e094cc411f..dfe783d01d7d 100644
--- a/sound/firewire/tascam/tascam-stream.c
+++ b/sound/firewire/tascam/tascam-stream.c
@@ -490,7 +490,7 @@ int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate)
// packet is important for media clock recovery.
err = amdtp_domain_start(&tscm->domain, tx_init_skip_cycles, true, true);
if (err < 0)
- return err;
+ goto error;
if (!amdtp_domain_wait_ready(&tscm->domain, READY_TIMEOUT_MS)) {
err = -ETIMEDOUT;
diff --git a/sound/i2c/cs8427.c b/sound/i2c/cs8427.c
index 65012af6a36e..f58b14b49045 100644
--- a/sound/i2c/cs8427.c
+++ b/sound/i2c/cs8427.c
@@ -561,10 +561,13 @@ int snd_cs8427_iec958_active(struct snd_i2c_device *cs8427, int active)
if (snd_BUG_ON(!cs8427))
return -ENXIO;
chip = cs8427->private_data;
- if (active)
+ if (active) {
memcpy(chip->playback.pcm_status,
chip->playback.def_status, 24);
- chip->playback.pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ chip->playback.pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ } else {
+ chip->playback.pcm_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ }
snd_ctl_notify(cs8427->bus->card,
SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
&chip->playback.pcm_ctl->id);
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index 48af77ae8020..6ec394fb1846 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -1236,7 +1236,7 @@ static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
- emu->capture_interrupt = NULL;
+ emu->capture_mic_interrupt = NULL;
emu->pcm_capture_mic_substream = NULL;
return 0;
}
@@ -1344,7 +1344,7 @@ static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream)
{
struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
- emu->capture_interrupt = NULL;
+ emu->capture_efx_interrupt = NULL;
emu->pcm_capture_efx_substream = NULL;
return 0;
}
@@ -1781,17 +1781,21 @@ int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device)
struct snd_kcontrol *kctl;
int err;
- err = snd_pcm_new(emu->card, "emu10k1 efx", device, 8, 1, &pcm);
+ err = snd_pcm_new(emu->card, "emu10k1 efx", device, emu->audigy ? 0 : 8, 1, &pcm);
if (err < 0)
return err;
pcm->private_data = emu;
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
+ if (!emu->audigy)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops);
pcm->info_flags = 0;
- strcpy(pcm->name, "Multichannel Capture/PT Playback");
+ if (emu->audigy)
+ strcpy(pcm->name, "Multichannel Capture");
+ else
+ strcpy(pcm->name, "Multichannel Capture/PT Playback");
emu->pcm_efx = pcm;
/* EFX capture - record the "FXBUS2" channels, by default we connect the EXTINs
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index a794a01a68ca..61258b0aac8d 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1707,6 +1707,7 @@ static const struct snd_pci_quirk stac925x_fixup_tbl[] = {
};
static const struct hda_pintbl ref92hd73xx_pin_configs[] = {
+ // Port A-H
{ 0x0a, 0x02214030 },
{ 0x0b, 0x02a19040 },
{ 0x0c, 0x01a19020 },
@@ -1715,9 +1716,12 @@ static const struct hda_pintbl ref92hd73xx_pin_configs[] = {
{ 0x0f, 0x01014010 },
{ 0x10, 0x01014020 },
{ 0x11, 0x01014030 },
+ // CD in
{ 0x12, 0x02319040 },
+ // Digial Mic ins
{ 0x13, 0x90a000f0 },
{ 0x14, 0x90a000f0 },
+ // Digital outs
{ 0x22, 0x01452050 },
{ 0x23, 0x01452050 },
{}
@@ -1758,6 +1762,7 @@ static const struct hda_pintbl alienware_m17x_pin_configs[] = {
};
static const struct hda_pintbl intel_dg45id_pin_configs[] = {
+ // Analog outputs
{ 0x0a, 0x02214230 },
{ 0x0b, 0x02A19240 },
{ 0x0c, 0x01013214 },
@@ -1765,6 +1770,9 @@ static const struct hda_pintbl intel_dg45id_pin_configs[] = {
{ 0x0e, 0x01A19250 },
{ 0x0f, 0x01011212 },
{ 0x10, 0x01016211 },
+ // Digital output
+ { 0x22, 0x01451380 },
+ { 0x23, 0x40f000f0 },
{}
};
@@ -1955,6 +1963,8 @@ static const struct snd_pci_quirk stac92hd73xx_fixup_tbl[] = {
"DFI LanParty", STAC_92HD73XX_REF),
SND_PCI_QUIRK(PCI_VENDOR_ID_DFI, 0x3101,
"DFI LanParty", STAC_92HD73XX_REF),
+ SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x5001,
+ "Intel DP45SG", STAC_92HD73XX_INTEL),
SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x5002,
"Intel DG45ID", STAC_92HD73XX_INTEL),
SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x5003,
diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index a9f974e5fb85..98cb3831aa18 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -1003,9 +1003,12 @@ static void btf_dump_emit_struct_def(struct btf_dump *d,
* Keep `struct empty {}` on a single line,
* only print newline when there are regular or padding fields.
*/
- if (vlen || t->size)
+ if (vlen || t->size) {
btf_dump_printf(d, "\n");
- btf_dump_printf(d, "%s}", pfx(lvl));
+ btf_dump_printf(d, "%s}", pfx(lvl));
+ } else {
+ btf_dump_printf(d, "}");
+ }
if (packed)
btf_dump_printf(d, " __attribute__((packed))");
}
