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SubjectRe: [PATCH] pinctrl: msm: Add sleep pinctrl state transitions
Date
Quoting Evan Green (2018-11-09 14:28:35)
> Add PM suspend callbacks to the msm core driver that select the
> sleep and default pinctrl states. Then wire those callbacks up
> in the sdm845 driver, for those boards that may have GPIO hogs
> that need to change state during suspend.
>
> Signed-off-by: Evan Green <evgreen@chromium.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>

>
> drivers/pinctrl/qcom/pinctrl-msm.c | 16 ++++++++++++++++
> drivers/pinctrl/qcom/pinctrl-msm.h | 2 ++
> drivers/pinctrl/qcom/pinctrl-sdm845.c | 4 ++++
> 3 files changed, 22 insertions(+)
>
> diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
> index 7c7d083e2c0dc..d505d0a50f0a5 100644
> --- a/drivers/pinctrl/qcom/pinctrl-msm.c
> +++ b/drivers/pinctrl/qcom/pinctrl-msm.c
> @@ -1072,6 +1072,22 @@ static void msm_pinctrl_setup_pm_reset(struct msm_pinctrl *pctrl)
> }
> }
>
> +int msm_pinctrl_suspend(struct device *dev)
> +{
> + struct msm_pinctrl *pctrl = dev_get_drvdata(dev);
> +
> + return pinctrl_force_sleep(pctrl->pctrl);
> +}
> +EXPORT_SYMBOL(msm_pinctrl_suspend);
> +
> +int msm_pinctrl_resume(struct device *dev)
> +{
> + struct msm_pinctrl *pctrl = dev_get_drvdata(dev);
> +
> + return pinctrl_force_default(pctrl->pctrl);
> +}
> +EXPORT_SYMBOL(msm_pinctrl_resume);

It's too bad this can't be installed by default into the driver somehow
so we don't have to repeat this for each device driver. O well!

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