Re: [PATCH] pinctrl: msm: Add sleep pinctrl state transitions

From: Evan Green
Date: Mon Nov 12 2018 - 13:27:32 EST


On Fri, Nov 9, 2018 at 11:20 PM Bjorn Andersson
<bjorn.andersson@xxxxxxxxxx> wrote:
>
> On Fri 09 Nov 14:28 PST 2018, Evan Green wrote:
>
> > 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@xxxxxxxxxxxx>
> > ---
> >
> > 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);
> > +
> > int msm_pinctrl_probe(struct platform_device *pdev,
> > const struct msm_pinctrl_soc_data *soc_data)
> > {
> > diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h
> > index 29172fdf5882c..e163ca600ecd3 100644
> > --- a/drivers/pinctrl/qcom/pinctrl-msm.h
> > +++ b/drivers/pinctrl/qcom/pinctrl-msm.h
> > @@ -123,6 +123,8 @@ struct msm_pinctrl_soc_data {
> > unsigned int ntiles;
> > };
> >
> > +int msm_pinctrl_suspend(struct device *dev);
> > +int msm_pinctrl_resume(struct device *dev);
> > int msm_pinctrl_probe(struct platform_device *pdev,
> > const struct msm_pinctrl_soc_data *soc_data);
> > int msm_pinctrl_remove(struct platform_device *pdev);
> > diff --git a/drivers/pinctrl/qcom/pinctrl-sdm845.c b/drivers/pinctrl/qcom/pinctrl-sdm845.c
> > index 2ab7a88857579..a3ac9cbeabad1 100644
> > --- a/drivers/pinctrl/qcom/pinctrl-sdm845.c
> > +++ b/drivers/pinctrl/qcom/pinctrl-sdm845.c
> > @@ -1287,6 +1287,9 @@ static const struct msm_pinctrl_soc_data sdm845_pinctrl = {
> > .ngpios = 150,
> > };
> >
> > +static SIMPLE_DEV_PM_OPS(sdm845_pinctrl_dev_pm_ops, msm_pinctrl_suspend,
> > + msm_pinctrl_resume);
>
> I don't expect this to differ between the various platforms, so how
> about moving it to pinctrl-msm?

Sounds good! Will spin.