From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
This structure is used to copy information from the 'sdw_slave'
structures, it's better to create a flexible array of 'sdw_slave'
pointers and directly access the information. This will also help
access additional information stored in the 'sdw_slave' structure,
such as an SDCA context.
This patch does not add new functionality, it only modified how the
information is retrieved.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
drivers/soundwire/amd_init.c | 12 ++++++------
drivers/soundwire/intel_init.c | 13 ++++++-------
include/linux/soundwire/sdw.h | 6 +++---
include/linux/soundwire/sdw_amd.h | 7 ++-----
include/linux/soundwire/sdw_intel.h | 7 ++-----
include/sound/soc-acpi.h | 3 +--
sound/soc/amd/ps/pci-ps.c | 3 +--
sound/soc/soc-acpi.c | 30 +++++++++++++++--------------
sound/soc/sof/amd/acp-common.c | 3 +--
sound/soc/sof/intel/hda.c | 16 ++++++++-------
10 files changed, 47 insertions(+), 53 deletions(-)
diff --git a/drivers/soundwire/amd_init.c b/drivers/soundwire/amd_init.c
index db040f435059..53d1d707ca1a 100644
--- a/drivers/soundwire/amd_init.c
+++ b/drivers/soundwire/amd_init.c
@@ -177,7 +177,7 @@ EXPORT_SYMBOL_NS(sdw_amd_probe, SOUNDWIRE_AMD_INIT);
void sdw_amd_exit(struct sdw_amd_ctx *ctx)
{
sdw_amd_cleanup(ctx);
- kfree(ctx->ids);
+ kfree(ctx->peripherals);
kfree(ctx);
}
EXPORT_SYMBOL_NS(sdw_amd_exit, SOUNDWIRE_AMD_INIT);
@@ -204,10 +204,11 @@ int sdw_amd_get_slave_info(struct sdw_amd_ctx *ctx)
num_slaves++;
}
- ctx->ids = kcalloc(num_slaves, sizeof(*ctx->ids), GFP_KERNEL);
- if (!ctx->ids)
+ ctx->peripherals = kmalloc(struct_size(ctx->peripherals, array, num_slaves),
+ GFP_KERNEL);
+ if (!ctx->peripherals)
return -ENOMEM;
- ctx->num_slaves = num_slaves;
+ ctx->peripherals->num_peripherals = num_slaves;
for (index = 0; index < ctx->count; index++) {
if (!(ctx->link_mask & BIT(index)))
continue;
@@ -215,8 +216,7 @@ int sdw_amd_get_slave_info(struct sdw_amd_ctx *ctx)
if (amd_manager) {
bus = &amd_manager->bus;
list_for_each_entry(slave, &bus->slaves, node) {
- ctx->ids[i].id = slave->id;
- ctx->ids[i].link_id = bus->link_id;
+ ctx->peripherals->array[i] = slave;
i++;
}
}
diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c
index a09134b97cd6..12e7a98f319f 100644
--- a/drivers/soundwire/intel_init.c
+++ b/drivers/soundwire/intel_init.c
@@ -252,17 +252,16 @@ static struct sdw_intel_ctx
num_slaves++;
}
- ctx->ids = kcalloc(num_slaves, sizeof(*ctx->ids), GFP_KERNEL);
- if (!ctx->ids)
+ ctx->peripherals = kmalloc(struct_size(ctx->peripherals, array, num_slaves),
+ GFP_KERNEL);
+ if (!ctx->peripherals)
goto err;
-
- ctx->num_slaves = num_slaves;
+ ctx->peripherals->num_peripherals = num_slaves;
i = 0;
list_for_each_entry(link, &ctx->link_list, list) {
bus = &link->cdns->bus;
list_for_each_entry(slave, &bus->slaves, node) {
- ctx->ids[i].id = slave->id;
- ctx->ids[i].link_id = bus->link_id;
+ ctx->peripherals->array[i] = slave;
i++;
}
}
@@ -371,7 +370,7 @@ void sdw_intel_exit(struct sdw_intel_ctx *ctx)
}
sdw_intel_cleanup(ctx);
- kfree(ctx->ids);
+ kfree(ctx->peripherals);
kfree(ctx->ldev);
kfree(ctx);
}
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 5e0dd47a0412..283c8bfdde49 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -488,9 +488,9 @@ struct sdw_slave_id {
__u8 sdw_version:4;
};
-struct sdw_extended_slave_id {
- int link_id;
- struct sdw_slave_id id;
+struct sdw_peripherals {
+ int num_peripherals;
+ struct sdw_slave *array[];
};
/*
diff --git a/include/linux/soundwire/sdw_amd.h b/include/linux/soundwire/sdw_amd.h
index 28a4eb77717f..585b4c58a8a6 100644
--- a/include/linux/soundwire/sdw_amd.h
+++ b/include/linux/soundwire/sdw_amd.h
@@ -115,19 +115,16 @@ struct sdw_amd_acpi_info {
* struct sdw_amd_ctx - context allocated by the controller driver probe
*
* @count: link count
- * @num_slaves: total number of devices exposed across all enabled links
* @link_mask: bit-wise mask listing SoundWire links reported by the
* Controller
- * @ids: array of slave_id, representing Slaves exposed across all enabled
- * links
* @pdev: platform device structure
+ * @peripherals: array representing Peripherals exposed across all enabled links
*/
struct sdw_amd_ctx {
int count;
- int num_slaves;
u32 link_mask;
- struct sdw_extended_slave_id *ids;
struct platform_device *pdev[AMD_SDW_MAX_MANAGER_COUNT];
+ struct sdw_peripherals *peripherals;
};
/**
diff --git a/include/linux/soundwire/sdw_intel.h b/include/linux/soundwire/sdw_intel.h
index fae345987b8c..491ddd27270f 100644
--- a/include/linux/soundwire/sdw_intel.h
+++ b/include/linux/soundwire/sdw_intel.h
@@ -287,31 +287,28 @@ struct hdac_bus;
* hardware capabilities after all power dependencies are settled.
* @link_mask: bit-wise mask listing SoundWire links reported by the
* Controller
- * @num_slaves: total number of devices exposed across all enabled links
* @handle: ACPI parent handle
* @ldev: information for each link (controller-specific and kept
* opaque here)
- * @ids: array of slave_id, representing Slaves exposed across all enabled
- * links
* @link_list: list to handle interrupts across all links
* @shim_lock: mutex to handle concurrent rmw access to shared SHIM registers.
* @shim_mask: flags to track initialization of SHIM shared registers
* @shim_base: sdw shim base.
* @alh_base: sdw alh base.
+ * @peripherals: array representing Peripherals exposed across all enabled links
*/
struct sdw_intel_ctx {
int count;
void __iomem *mmio_base;
u32 link_mask;
- int num_slaves;
acpi_handle handle;
struct sdw_intel_link_dev **ldev;
- struct sdw_extended_slave_id *ids;
struct list_head link_list;
struct mutex shim_lock; /* lock for access to shared SHIM registers */
u32 shim_mask;
u32 shim_base;
u32 alh_base;
+ struct sdw_peripherals *peripherals;
};
/**
diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h
index 60d3b86a4660..ac7f9e791ee1 100644
--- a/include/sound/soc-acpi.h
+++ b/include/sound/soc-acpi.h
@@ -233,7 +233,6 @@ static inline bool snd_soc_acpi_sof_parent(struct device *dev)
bool snd_soc_acpi_sdw_link_slaves_found(struct device *dev,
const struct snd_soc_acpi_link_adr *link,
- struct sdw_extended_slave_id *ids,
- int num_slaves);
+ struct sdw_peripherals *peripherals);
#endif
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index c72d666d51bd..4365499c8f82 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -302,8 +302,7 @@ static struct snd_soc_acpi_mach *acp63_sdw_machine_select(struct device *dev)
link = mach->links;
for (i = 0; i < acp_data->info.count && link->num_adr; link++, i++) {
if (!snd_soc_acpi_sdw_link_slaves_found(dev, link,
- acp_data->sdw->ids,
- acp_data->sdw->num_slaves))
+ acp_data->sdw->peripherals))
break;
}
if (i == acp_data->info.count || !link->num_adr)
diff --git a/sound/soc/soc-acpi.c b/sound/soc/soc-acpi.c
index 6d693b2ad5a3..270f9777942f 100644
--- a/sound/soc/soc-acpi.c
+++ b/sound/soc/soc-acpi.c
@@ -131,8 +131,7 @@ EXPORT_SYMBOL_GPL(snd_soc_acpi_codec_list);
/* Check if all Slaves defined on the link can be found */
bool snd_soc_acpi_sdw_link_slaves_found(struct device *dev,
const struct snd_soc_acpi_link_adr *link,
- struct sdw_extended_slave_id *ids,
- int num_slaves)
+ struct sdw_peripherals *peripherals)
{
unsigned int part_id, link_id, unique_id, mfg_id, version;
int i, j, k;
@@ -146,22 +145,25 @@ bool snd_soc_acpi_sdw_link_slaves_found(struct device *dev,
link_id = SDW_DISCO_LINK_ID(adr);
version = SDW_VERSION(adr);
- for (j = 0; j < num_slaves; j++) {
+ for (j = 0; j < peripherals->num_peripherals; j++) {
+ struct sdw_slave *peripheral = peripherals->array[j];
+
/* find out how many identical parts were reported on that link */
- if (ids[j].link_id == link_id &&
- ids[j].id.part_id == part_id &&
- ids[j].id.mfg_id == mfg_id &&
- ids[j].id.sdw_version == version)
+ if (peripheral->bus->link_id == link_id &&
+ peripheral->id.part_id == part_id &&
+ peripheral->id.mfg_id == mfg_id &&
+ peripheral->id.sdw_version == version)
reported_part_count++;
}
- for (j = 0; j < num_slaves; j++) {
+ for (j = 0; j < peripherals->num_peripherals; j++) {
+ struct sdw_slave *peripheral = peripherals->array[j];
int expected_part_count = 0;
- if (ids[j].link_id != link_id ||
- ids[j].id.part_id != part_id ||
- ids[j].id.mfg_id != mfg_id ||
- ids[j].id.sdw_version != version)
+ if (peripheral->bus->link_id != link_id ||
+ peripheral->id.part_id != part_id ||
+ peripheral->id.mfg_id != mfg_id ||
+ peripheral->id.sdw_version != version)
continue;
/* find out how many identical parts are expected */
@@ -180,7 +182,7 @@ bool snd_soc_acpi_sdw_link_slaves_found(struct device *dev,
*/
unique_id = SDW_UNIQUE_ID(adr);
if (reported_part_count == 1 ||
- ids[j].id.unique_id == unique_id) {
+ peripheral->id.unique_id == unique_id) {
dev_dbg(dev, "found part_id %#x at link %d\n", part_id, link_id);
break;
}
@@ -189,7 +191,7 @@ bool snd_soc_acpi_sdw_link_slaves_found(struct device *dev,
part_id, reported_part_count, expected_part_count, link_id);
}
}
- if (j == num_slaves) {
+ if (j == peripherals->num_peripherals) {
dev_dbg(dev, "Slave part_id %#x not found\n", part_id);
return false;
}
diff --git a/sound/soc/sof/amd/acp-common.c b/sound/soc/sof/amd/acp-common.c
index dbcaac84cb73..fc792956bb97 100644
--- a/sound/soc/sof/amd/acp-common.c
+++ b/sound/soc/sof/amd/acp-common.c
@@ -145,8 +145,7 @@ static struct snd_soc_acpi_mach *amd_sof_sdw_machine_select(struct snd_sof_dev *
link = mach->links;
for (i = 0; i < acp_data->info.count && link->num_adr; link++, i++) {
if (!snd_soc_acpi_sdw_link_slaves_found(sdev->dev, link,
- acp_data->sdw->ids,
- acp_data->sdw->num_slaves))
+ acp_data->sdw->peripherals))
break;
}
if (i == acp_data->info.count || !link->num_adr)
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index e4cb4ffc7270..9abc4c071ae5 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -1064,7 +1064,7 @@ static struct snd_soc_acpi_mach *hda_sdw_machine_select(struct snd_sof_dev *sdev
{
struct snd_sof_pdata *pdata = sdev->pdata;
const struct snd_soc_acpi_link_adr *link;
- struct sdw_extended_slave_id *ids;
+ struct sdw_peripherals *peripherals;
struct snd_soc_acpi_mach *mach;
struct sof_intel_hda_dev *hdev;
u32 link_mask;
@@ -1083,7 +1083,7 @@ static struct snd_soc_acpi_mach *hda_sdw_machine_select(struct snd_sof_dev *sdev
return NULL;
}
- if (!hdev->sdw->num_slaves) {
+ if (!hdev->sdw->peripherals || !hdev->sdw->peripherals->num_peripherals) {
dev_warn(sdev->dev, "No SoundWire peripheral detected in ACPI tables\n");
return NULL;
}
@@ -1119,8 +1119,7 @@ static struct snd_soc_acpi_mach *hda_sdw_machine_select(struct snd_sof_dev *sdev
* are not found on this link.
*/
if (!snd_soc_acpi_sdw_link_slaves_found(sdev->dev, link,
- hdev->sdw->ids,
- hdev->sdw->num_slaves))
+ hdev->sdw->peripherals))
break;
}
/* Found if all Slaves are checked */
@@ -1136,10 +1135,13 @@ static struct snd_soc_acpi_mach *hda_sdw_machine_select(struct snd_sof_dev *sdev
}
dev_info(sdev->dev, "No SoundWire machine driver found for the ACPI-reported configuration:\n");
- ids = hdev->sdw->ids;
- for (i = 0; i < hdev->sdw->num_slaves; i++)
+ peripherals = hdev->sdw->peripherals;
+ for (i = 0; i < peripherals->num_peripherals; i++)
dev_info(sdev->dev, "link %d mfg_id 0x%04x part_id 0x%04x version %#x\n",
- ids[i].link_id, ids[i].id.mfg_id, ids[i].id.part_id, ids[i].id.sdw_version);
+ peripherals->array[i]->bus->link_id,
+ peripherals->array[i]->id.mfg_id,
+ peripherals->array[i]->id.part_id,
+ peripherals->array[i]->id.sdw_version);
return NULL;
}
--
2.43.0
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