For systems instantiated from device tree struct platform_device id
field is always -1, add an 'id' argument to the s5p_csis_phy_enable()
function so the MIPI-CSIS hardware instance index can be passed in
by driver, for CONFIG_OF=y.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
arch/arm/plat-s5p/setup-mipiphy.c | 20 ++++++++------------
arch/arm/plat-samsung/include/plat/mipi_csis.h | 10 ++++++----
2 files changed, 14 insertions(+), 16 deletions(-)
diff --git a/arch/arm/plat-s5p/setup-mipiphy.c b/arch/arm/plat-s5p/setup-mipiphy.c
index 683c466..146ecc3 100644
--- a/arch/arm/plat-s5p/setup-mipiphy.c
+++ b/arch/arm/plat-s5p/setup-mipiphy.c
@@ -14,24 +14,19 @@
#include <linux/spinlock.h>
#include <mach/regs-clock.h>
-static int __s5p_mipi_phy_control(struct platform_device *pdev,
+static int __s5p_mipi_phy_control(struct platform_device *pdev, int id,
bool on, u32 reset)
{
static DEFINE_SPINLOCK(lock);
void __iomem *addr;
unsigned long flags;
- int pid;
u32 cfg;
- if (!pdev)
+ id = max(0, id);
+ if (id > 1)
return -EINVAL;
- pid = (pdev->id == -1) ? 0 : pdev->id;
-
- if (pid != 0 && pid != 1)
- return -EINVAL;
-
- addr = S5P_MIPI_DPHY_CONTROL(pid);
+ addr = S5P_MIPI_DPHY_CONTROL(id);
spin_lock_irqsave(&lock, flags);
@@ -52,12 +47,13 @@ static int __s5p_mipi_phy_control(struct platform_device *pdev,
return 0;
}
-int s5p_csis_phy_enable(struct platform_device *pdev, bool on)
+int s5p_csis_phy_enable(struct platform_device *pdev, int id, bool on)
{
- return __s5p_mipi_phy_control(pdev, on, S5P_MIPI_DPHY_SRESETN);
+ return __s5p_mipi_phy_control(pdev, on, id, S5P_MIPI_DPHY_SRESETN);
}
int s5p_dsim_phy_enable(struct platform_device *pdev, bool on)
{
- return __s5p_mipi_phy_control(pdev, on, S5P_MIPI_DPHY_MRESETN);
+ return __s5p_mipi_phy_control(pdev, pdev->id, on,
+ S5P_MIPI_DPHY_MRESETN);
}
diff --git a/arch/arm/plat-samsung/include/plat/mipi_csis.h b/arch/arm/plat-samsung/include/plat/mipi_csis.h
index c45b1e8..609cf1e 100644
--- a/arch/arm/plat-samsung/include/plat/mipi_csis.h
+++ b/arch/arm/plat-samsung/include/plat/mipi_csis.h
@@ -34,10 +34,12 @@ 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
+ * @pdev: MIPI-CSIS platform device
+ * @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(struct platform_device *pdev, int id, bool on);
#endif /* __PLAT_SAMSUNG_MIPI_CSIS_H_ */
--
1.7.10
--
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