lkml.org 
[lkml]   [2019]   [Mar]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
SubjectRe: [PATCH] drm/stm: dw_mipi_dsi-stm: add sleep power management
Date
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,
> },
> };
>
>
\
 
 \ /
  Last update: 2019-03-26 13:53    [W:0.042 / U:2.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site