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authorChris Zhong <zyw@rock-chips.com>2014-10-29 14:51:59 +0300
committerHeiko Stuebner <heiko@sntech.de>2014-11-01 01:50:31 +0300
commit9198f509c888f1ca8f5a50047d702b1ab29459a5 (patch)
tree07548f6dd2c62a10578754e184545069b65d8f0f /drivers/pinctrl
parentfab262f5000407ce86a010ab5bc683c01c02d1a6 (diff)
downloadlinux-9198f509c888f1ca8f5a50047d702b1ab29459a5.tar.xz
pinctrl: rockchip: add suspend/resume functions
support suspend/resume of pinctrl, it allows handling sleep mode for hogged pins in pinctrl Signed-off-by: Chris Zhong <zyw@rock-chips.com> Tested-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-rockchip.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 59a54617bf75..28b12187c2c1 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1796,6 +1796,23 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
return ctrl;
}
+static int __maybe_unused rockchip_pinctrl_suspend(struct device *dev)
+{
+ struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+ return pinctrl_force_sleep(info->pctl_dev);
+}
+
+static int __maybe_unused rockchip_pinctrl_resume(struct device *dev)
+{
+ struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+ return pinctrl_force_default(info->pctl_dev);
+}
+
+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;
@@ -2009,6 +2026,7 @@ 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,
},
};