From: Chris <zyw@xxxxxxxxxxxxxx>
support suspend/resume of pinctrl, it allows handling sleep mode
for hogged pins in pinctrl
Signed-off-by: Chris Zhong <zyw@xxxxxxxxxxxxxx>
---
Changes in v4:
- use SIMPLE_DEV_PM_OPS for suspend/resume struct
Changes in v3: None
Changes in v2: None
drivers/pinctrl/pinctrl-rockchip.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 016f457..c4a988d 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1770,6 +1770,25 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
return ctrl;
}
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_pinctrl_suspend(struct device *dev)
+{
+ struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+ return pinctrl_force_sleep(info->pctl_dev);
+}
+
+static int rockchip_pinctrl_resume(struct device *dev)
+{
+ struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+ return pinctrl_force_default(info->pctl_dev);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
+ rockchip_pinctrl_resume);
+
static int rockchip_pinctrl_probe(struct platform_device *pdev)
{
struct rockchip_pinctrl *info;
@@ -1983,6 +2002,7 @@ static struct platform_driver rockchip_pinctrl_driver = {
.driver = {
.name = "rockchip-pinctrl",
.owner = THIS_MODULE,
+ .pm = &rockchip_pinctrl_dev_pm_ops,
.of_match_table = rockchip_pinctrl_dt_match,
},
};
--
1.7.9.5
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