We have special helpers to access MMIO. Use them.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
.../staging/media/atomisp/pci/atomisp_cmd.c | 13 +++---
.../media/atomisp/pci/atomisp_compat.h | 2 -
.../media/atomisp/pci/atomisp_compat_css20.c | 43 ++++++++++---------
.../media/atomisp/pci/atomisp_internal.h | 1 +
.../staging/media/atomisp/pci/atomisp_v4l2.c | 16 +++----
5 files changed, 35 insertions(+), 40 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index db3c3542457c..ed01a0987da7 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -21,6 +21,7 @@
#include <linux/firmware.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
+#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/kfifo.h>
#include <linux/pm_runtime.h>
@@ -669,11 +670,10 @@ bool atomisp_buffers_queued_pipe(struct atomisp_video_pipe *pipe)
void dump_sp_dmem(struct atomisp_device *isp, unsigned int addr,
unsigned int size)
{
- u32 __iomem *io_virt_addr;
unsigned int data = 0;
unsigned int size32 = DIV_ROUND_UP(size, sizeof(u32));
- dev_dbg(isp->dev, "atomisp_io_base:%p\n", atomisp_io_base);
+ dev_dbg(isp->dev, "atomisp mmio base: %p\n", isp->base);
dev_dbg(isp->dev, "%s, addr:0x%x, size: %d, size32: %d\n", __func__,
addr, size, size32);
if (size32 * 4 + addr > 0x4000) {
@@ -682,13 +682,12 @@ void dump_sp_dmem(struct atomisp_device *isp, unsigned int addr,
return;
}
addr += SP_DMEM_BASE;
- io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ addr &= 0x003FFFFF;
do {
- data = *io_virt_addr;
+ data = readl(isp->base + addr);
dev_dbg(isp->dev, "%s, \t [0x%x]:0x%x\n", __func__, addr, data);
- io_virt_addr += sizeof(u32);
- size32 -= 1;
- } while (size32 > 0);
+ addr += sizeof(u32);
+ } while (--size32);
}
static struct videobuf_buffer *atomisp_css_frame_to_vbuf(
diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat.h b/drivers/staging/media/atomisp/pci/atomisp_compat.h
index b2ed83c2f337..6a2a81a3eb23 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat.h
@@ -29,8 +29,6 @@ struct atomisp_sub_device;
struct video_device;
enum atomisp_input_stream_id;
-extern void __iomem *atomisp_io_base;
-
struct atomisp_metadata_buf {
struct ia_css_metadata *metadata;
void *md_vptr;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
index df352be06474..010b2b19d811 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
@@ -38,6 +38,7 @@
#include "sh_css_hrt.h"
#include "ia_css_isys.h"
+#include <linux/io.h>
#include <linux/pm_runtime.h>
/* Assume max number of ACC stages */
@@ -67,92 +68,94 @@ struct bayer_ds_factor {
static void atomisp_css2_hw_store_8(hrt_address addr, uint8_t data)
{
- s8 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
spin_lock_irqsave(&mmio_lock, flags);
- *io_virt_addr = data;
+ writeb(data, isp->base + (addr & 0x003FFFFF));
spin_unlock_irqrestore(&mmio_lock, flags);
}
static void atomisp_css2_hw_store_16(hrt_address addr, uint16_t data)
{
- s16 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
spin_lock_irqsave(&mmio_lock, flags);
- *io_virt_addr = data;
+ writew(data, isp->base + (addr & 0x003FFFFF));
spin_unlock_irqrestore(&mmio_lock, flags);
}
void atomisp_css2_hw_store_32(hrt_address addr, uint32_t data)
{
- s32 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
spin_lock_irqsave(&mmio_lock, flags);
- *io_virt_addr = data;
+ writel(data, isp->base + (addr & 0x003FFFFF));
spin_unlock_irqrestore(&mmio_lock, flags);
}
static uint8_t atomisp_css2_hw_load_8(hrt_address addr)
{
- s8 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
u8 ret;
spin_lock_irqsave(&mmio_lock, flags);
- ret = *io_virt_addr;
+ ret = readb(isp->base + (addr & 0x003FFFFF));
spin_unlock_irqrestore(&mmio_lock, flags);
return ret;
}
static uint16_t atomisp_css2_hw_load_16(hrt_address addr)
{
- s16 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
u16 ret;
spin_lock_irqsave(&mmio_lock, flags);
- ret = *io_virt_addr;
+ ret = readw(isp->base + (addr & 0x003FFFFF));
spin_unlock_irqrestore(&mmio_lock, flags);
return ret;
}
static uint32_t atomisp_css2_hw_load_32(hrt_address addr)
{
- s32 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
u32 ret;
spin_lock_irqsave(&mmio_lock, flags);
- ret = *io_virt_addr;
+ ret = readl(isp->base + (addr & 0x003FFFFF));
spin_unlock_irqrestore(&mmio_lock, flags);
return ret;
}
-static void atomisp_css2_hw_store(hrt_address addr,
- const void *from, uint32_t n)
+static void atomisp_css2_hw_store(hrt_address addr, const void *from, uint32_t n)
{
- s8 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
unsigned int i;
+ addr &= 0x003FFFFF;
spin_lock_irqsave(&mmio_lock, flags);
- for (i = 0; i < n; i++, io_virt_addr++, from++)
- *io_virt_addr = *(s8 *)from;
+ for (i = 0; i < n; i++, from++)
+ writeb(*(s8 *)from, isp->base + addr + i);
+
spin_unlock_irqrestore(&mmio_lock, flags);
}
static void atomisp_css2_hw_load(hrt_address addr, void *to, uint32_t n)
{
- s8 __iomem *io_virt_addr = atomisp_io_base + (addr & 0x003FFFFF);
+ struct atomisp_device *isp = dev_get_drvdata(atomisp_dev);
unsigned long flags;
unsigned int i;
+ addr &= 0x003FFFFF;
spin_lock_irqsave(&mmio_lock, flags);
- for (i = 0; i < n; i++, to++, io_virt_addr++)
- *(s8 *)to = *io_virt_addr;
+ for (i = 0; i < n; i++, to++)
+ *(s8 *)to = readb(isp->base + addr + i);
spin_unlock_irqrestore(&mmio_lock, flags);
}
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index 5af9bbce6284..c01db10bb735 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -221,6 +221,7 @@ struct atomisp_device {
struct media_device media_dev;
struct atomisp_platform_data *pdata;
void *mmu_l1_base;
+ void __iomem *base;
const struct firmware *firmware;
struct pm_qos_request pm_qos;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 731a683e82f1..17ca730aa358 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -127,8 +127,6 @@ MODULE_PARM_DESC(pad_h, "extra data for ISP processing");
struct device *atomisp_dev;
-void __iomem *atomisp_io_base;
-
static const struct atomisp_freq_scaling_rule dfs_rules_merr[] = {
{
.width = ISP_FREQ_RULE_ANY,
@@ -1531,7 +1529,6 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
const struct atomisp_platform_data *pdata;
struct atomisp_device *isp;
unsigned int start;
- void __iomem *base;
int err, val;
u32 irq;
@@ -1560,13 +1557,6 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
goto ioremap_fail;
}
- base = pcim_iomap_table(pdev)[ATOM_ISP_PCI_BAR];
- dev_dbg(&pdev->dev, "base: %p\n", base);
-
- atomisp_io_base = base;
-
- dev_dbg(&pdev->dev, "atomisp_io_base: %p\n", atomisp_io_base);
-
isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL);
if (!isp) {
err = -ENOMEM;
@@ -1574,9 +1564,12 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
}
isp->dev = &pdev->dev;
+ isp->base = pcim_iomap_table(pdev)[ATOM_ISP_PCI_BAR];
isp->sw_contex.power_state = ATOM_ISP_POWER_UP;
isp->saved_regs.ispmmadr = start;
+ dev_dbg(&pdev->dev, "atomisp mmio base: %p\n", isp->base);
+
rt_mutex_init(&isp->mutex);
mutex_init(&isp->streamoff_mutex);
spin_lock_init(&isp->lock);
@@ -1584,6 +1577,8 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
/* This is not a true PCI device on SoC, so the delay is not needed. */
pdev->d3_delay = 0;
+ pci_set_drvdata(pdev, isp);
+
switch (id->device & ATOMISP_PCI_DEVICE_SOC_MASK) {
case ATOMISP_PCI_DEVICE_SOC_MRFLD:
isp->media_dev.hw_revision =
@@ -1714,7 +1709,6 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
}
pci_set_master(pdev);
- pci_set_drvdata(pdev, isp);
err = pci_enable_msi(pdev);
if (err) {
--
2.27.0
