The phy_enable callback is common for all Samsung SoC platforms,
replace it with direct function call so the MIPI-CSI2 DPHY control
is also possible on device tree instantiated platforms.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/s5p-fimc/mipi-csis.c | 13 +++++++------
include/linux/platform_data/mipi-csis.h | 11 +++++------
2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/media/video/s5p-fimc/mipi-csis.c b/drivers/media/video/s5p-fimc/mipi-csis.c
index c9afb05..1a2db5d 100644
--- a/drivers/media/video/s5p-fimc/mipi-csis.c
+++ b/drivers/media/video/s5p-fimc/mipi-csis.c
@@ -150,6 +150,7 @@ static const struct s5pcsis_event s5pcsis_events[] = {
* protecting @format and @flags members
* @pads: CSIS pads array
* @sd: v4l2_subdev associated with CSIS device instance
+ * @index: the hardware instance index
* @pdev: CSIS platform device
* @regs: mmaped I/O registers memory
* @supplies: CSIS regulator supplies
@@ -165,6 +166,7 @@ struct csis_state {
struct mutex lock;
struct media_pad pads[CSIS_PADS_NUM];
struct v4l2_subdev sd;
+ u8 index;
struct platform_device *pdev;
void __iomem *regs;
struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES];
@@ -619,14 +621,15 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
spin_lock_init(&state->slock);
state->pdev = pdev;
+ state->index = max(0, pdev->id);
pdata = pdev->dev.platform_data;
- if (pdata == NULL || pdata->phy_enable == NULL) {
+ if (pdata == NULL) {
dev_err(&pdev->dev, "Platform data not fully specified\n");
return -EINVAL;
}
- if ((pdev->id == 1 && pdata->lanes > CSIS1_MAX_LANES) ||
+ if ((state->index == 1 && pdata->lanes > CSIS1_MAX_LANES) ||
pdata->lanes > CSIS0_MAX_LANES) {
dev_err(&pdev->dev, "Unsupported number of data lanes: %d\n",
pdata->lanes);
@@ -709,7 +712,6 @@ e_clkput:
static int s5pcsis_pm_suspend(struct device *dev, bool runtime)
{
- struct s5p_platform_mipi_csis *pdata = dev->platform_data;
struct platform_device *pdev = to_platform_device(dev);
struct v4l2_subdev *sd = platform_get_drvdata(pdev);
struct csis_state *state = sd_to_csis_state(sd);
@@ -721,7 +723,7 @@ static int s5pcsis_pm_suspend(struct device *dev, bool runtime)
mutex_lock(&state->lock);
if (state->flags & ST_POWERED) {
s5pcsis_stop_stream(state);
- ret = pdata->phy_enable(state->pdev, false);
+ ret = s5p_csis_phy_enable(state->index, false);
if (ret)
goto unlock;
ret = regulator_bulk_disable(CSIS_NUM_SUPPLIES,
@@ -740,7 +742,6 @@ static int s5pcsis_pm_suspend(struct device *dev, bool runtime)
static int s5pcsis_pm_resume(struct device *dev, bool runtime)
{
- struct s5p_platform_mipi_csis *pdata = dev->platform_data;
struct platform_device *pdev = to_platform_device(dev);
struct v4l2_subdev *sd = platform_get_drvdata(pdev);
struct csis_state *state = sd_to_csis_state(sd);
@@ -758,7 +759,7 @@ static int s5pcsis_pm_resume(struct device *dev, bool runtime)
state->supplies);
if (ret)
goto unlock;
- ret = pdata->phy_enable(state->pdev, true);
+ ret = s5p_csis_phy_enable(state->index, true);
if (!ret) {
state->flags |= ST_POWERED;
} else {
diff --git a/include/linux/platform_data/mipi-csis.h b/include/linux/platform_data/mipi-csis.h
index c45b1e8..2e59e43 100644
--- a/include/linux/platform_data/mipi-csis.h
+++ b/include/linux/platform_data/mipi-csis.h
@@ -11,8 +11,6 @@
#ifndef __PLAT_SAMSUNG_MIPI_CSIS_H_
#define __PLAT_SAMSUNG_MIPI_CSIS_H_ __FILE__
-struct platform_device;
-
/**
* struct s5p_platform_mipi_csis - platform data for S5P MIPI-CSIS driver
* @clk_rate: bus clock frequency
@@ -34,10 +32,11 @@ struct s5p_platform_mipi_csis {
/**
* s5p_csis_phy_enable - global MIPI-CSI receiver D-PHY control
- * @pdev: MIPI-CSIS platform device
- * @on: true to enable D-PHY and deassert its reset
- * false to disable D-PHY
+ * @id: MIPI-CSIS harware instance index (0...1)
+ * @on: true to enable D-PHY and deassert its reset
+ * false to disable D-PHY
+ * @return: 0 on success, or negative error code on failure
*/
-int s5p_csis_phy_enable(struct platform_device *pdev, bool on);
+int s5p_csis_phy_enable(int id, bool on);
#endif /* __PLAT_SAMSUNG_MIPI_CSIS_H_ */
--
1.7.11.3
--
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