From: Pascal Huerst <pascal.hue...@gmail.com>
This adds calls to pinctrl subsystem in order to switch pin states
on suspend/resume if you provide a "sleep" state in DT.
If no "sleep" state is provided in the DT, these calls turn
to NOPs, so we don't need error checking here.
Signed-off-by: Pascal Huerst <pascal.hue...@gmail.com>
---
drivers/i2c/busses/i2c-omap.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 0e89419..8261941 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -38,6 +38,7 @@
#include <linux/slab.h>
#include <linux/i2c-omap.h>
#include <linux/pm_runtime.h>
+#include <linux/pinctrl/consumer.h>
/* I2C controller revisions */
#define OMAP_I2C_OMAP1_REV_2 0x20
@@ -1423,6 +1424,8 @@ static int omap_i2c_runtime_suspend(struct device *dev)
omap_i2c_read_reg(_dev, OMAP_I2C_STAT_REG);
}
+ pinctrl_pm_select_sleep_state(dev);
+
return 0;
}
@@ -1431,6 +1434,8 @@ static int omap_i2c_runtime_resume(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct omap_i2c_dev *_dev = platform_get_drvdata(pdev);
+ pinctrl_pm_select_default_state(dev);
+
if (!_dev->regs)
return 0;
--
2.1.0
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