diff mbox series

drm/stm: dw_mipi_dsi-stm: add sleep power management

Message ID 1553156033-13792-1-git-send-email-yannick.fertre@st.com (mailing list archive)
State New, archived
Headers show
Series drm/stm: dw_mipi_dsi-stm: add sleep power management | expand

Commit Message

Yannick FERTRE March 21, 2019, 8:13 a.m. UTC
Implements system sleep power management ops.

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
---
 drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

Comments

Philippe CORNU March 26, 2019, 12:52 p.m. UTC | #1
Dear Yannick,
Many thanks for your patch.

Acked-by: Philippe Cornu <philippe.cornu@st.com>

Philippe :-)


On 3/21/19 9:13 AM, Yannick Fertré wrote:
> Implements system sleep power management ops.
> 
> Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
> ---
>   drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 28 ++++++++++++++++++++++++++++
>   1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
> index a672b59..1bef73e 100644
> --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
> +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
> @@ -356,12 +356,40 @@ static int dw_mipi_dsi_stm_remove(struct platform_device *pdev)
>   	return 0;
>   }
>   
> +static int __maybe_unused dw_mipi_dsi_stm_suspend(struct device *dev)
> +{
> +	struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
> +
> +	DRM_DEBUG_DRIVER("\n");
> +
> +	clk_disable_unprepare(dsi->pllref_clk);
> +
> +	return 0;
> +}
> +
> +static int __maybe_unused dw_mipi_dsi_stm_resume(struct device *dev)
> +{
> +	struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
> +
> +	DRM_DEBUG_DRIVER("\n");
> +
> +	clk_prepare_enable(dsi->pllref_clk);
> +
> +	return 0;
> +}
> +
> +static const struct dev_pm_ops dw_mipi_dsi_stm_pm_ops = {
> +	SET_SYSTEM_SLEEP_PM_OPS(dw_mipi_dsi_stm_suspend,
> +				dw_mipi_dsi_stm_resume)
> +};
> +
>   static struct platform_driver dw_mipi_dsi_stm_driver = {
>   	.probe		= dw_mipi_dsi_stm_probe,
>   	.remove		= dw_mipi_dsi_stm_remove,
>   	.driver		= {
>   		.of_match_table = dw_mipi_dsi_stm_dt_ids,
>   		.name	= "stm32-display-dsi",
> +		.pm = &dw_mipi_dsi_stm_pm_ops,
>   	},
>   };
>   
>
Benjamin Gaignard April 1, 2019, 9:07 a.m. UTC | #2
Le mar. 26 mars 2019 à 13:57, Philippe CORNU <philippe.cornu@st.com> a écrit :
>
> Dear Yannick,
> Many thanks for your patch.
>
> Acked-by: Philippe Cornu <philippe.cornu@st.com>

Applied on drm-misc-next.

Benjamin

>
> Philippe :-)
>
>
> On 3/21/19 9:13 AM, Yannick Fertré wrote:
> > Implements system sleep power management ops.
> >
> > Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
> > ---
> >   drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 28 ++++++++++++++++++++++++++++
> >   1 file changed, 28 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
> > index a672b59..1bef73e 100644
> > --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
> > +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
> > @@ -356,12 +356,40 @@ static int dw_mipi_dsi_stm_remove(struct platform_device *pdev)
> >       return 0;
> >   }
> >
> > +static int __maybe_unused dw_mipi_dsi_stm_suspend(struct device *dev)
> > +{
> > +     struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
> > +
> > +     DRM_DEBUG_DRIVER("\n");
> > +
> > +     clk_disable_unprepare(dsi->pllref_clk);
> > +
> > +     return 0;
> > +}
> > +
> > +static int __maybe_unused dw_mipi_dsi_stm_resume(struct device *dev)
> > +{
> > +     struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
> > +
> > +     DRM_DEBUG_DRIVER("\n");
> > +
> > +     clk_prepare_enable(dsi->pllref_clk);
> > +
> > +     return 0;
> > +}
> > +
> > +static const struct dev_pm_ops dw_mipi_dsi_stm_pm_ops = {
> > +     SET_SYSTEM_SLEEP_PM_OPS(dw_mipi_dsi_stm_suspend,
> > +                             dw_mipi_dsi_stm_resume)
> > +};
> > +
> >   static struct platform_driver dw_mipi_dsi_stm_driver = {
> >       .probe          = dw_mipi_dsi_stm_probe,
> >       .remove         = dw_mipi_dsi_stm_remove,
> >       .driver         = {
> >               .of_match_table = dw_mipi_dsi_stm_dt_ids,
> >               .name   = "stm32-display-dsi",
> > +             .pm = &dw_mipi_dsi_stm_pm_ops,
> >       },
> >   };
> >
> >
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff mbox series

Patch

diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
index a672b59..1bef73e 100644
--- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
+++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
@@ -356,12 +356,40 @@  static int dw_mipi_dsi_stm_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static int __maybe_unused dw_mipi_dsi_stm_suspend(struct device *dev)
+{
+	struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
+
+	DRM_DEBUG_DRIVER("\n");
+
+	clk_disable_unprepare(dsi->pllref_clk);
+
+	return 0;
+}
+
+static int __maybe_unused dw_mipi_dsi_stm_resume(struct device *dev)
+{
+	struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
+
+	DRM_DEBUG_DRIVER("\n");
+
+	clk_prepare_enable(dsi->pllref_clk);
+
+	return 0;
+}
+
+static const struct dev_pm_ops dw_mipi_dsi_stm_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(dw_mipi_dsi_stm_suspend,
+				dw_mipi_dsi_stm_resume)
+};
+
 static struct platform_driver dw_mipi_dsi_stm_driver = {
 	.probe		= dw_mipi_dsi_stm_probe,
 	.remove		= dw_mipi_dsi_stm_remove,
 	.driver		= {
 		.of_match_table = dw_mipi_dsi_stm_dt_ids,
 		.name	= "stm32-display-dsi",
+		.pm = &dw_mipi_dsi_stm_pm_ops,
 	},
 };