diff options
| author |   Chris Zhong <zyw@rock-chips.com> | 2014-10-29 19:51:59 +0800 |
|---|---|---|
| committer |   Heiko Stuebner <heiko@sntech.de> | 2014-10-31 23:50:31 +0100 |
| commit | 9198f509c888f1ca8f5a50047d702b1ab29459a5 (patch) | |
| tree | 07548f6dd2c62a10578754e184545069b65d8f0f /drivers/pinctrl | |
| parent | pinctrl: rockchip: Protect read-modify-write with the spinlock (diff) | |
| download | linux-dev-9198f509c888f1ca8f5a50047d702b1ab29459a5.tar.xz linux-dev-9198f509c888f1ca8f5a50047d702b1ab29459a5.zip | |
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.c | 18 |
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, }, }; |