[PATCH 02/14] drm/rockchip: analogix_dp: add runtime PM handling

[Robert Foss]

On Fri, May 3, 2024 at 5:12 PM Lucas Stach <l.stach at pengutronix.de> wrote:
>
> Hook up the runtime PM suspend/resume paths to make the rockchip
> glue behave more like the exynos one. The same suspend/resume
> functions are used for system sleep via the runtime PM force
> suspend/resume.
>
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 13 ++++---------
>  1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> index baeb41875a4b..8214265f1497 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -13,6 +13,7 @@
>  #include <linux/of.h>
>  #include <linux/of_graph.h>
>  #include <linux/platform_device.h>
> +#include <linux/pm_runtime.h>
>  #include <linux/regmap.h>
>  #include <linux/reset.h>
>  #include <linux/clk.h>
> @@ -430,7 +431,6 @@ static void rockchip_dp_remove(struct platform_device *pdev)
>         analogix_dp_remove(dp->adp);
>  }
>
> -#ifdef CONFIG_PM_SLEEP
>  static int rockchip_dp_suspend(struct device *dev)
>  {
>         struct rockchip_dp_device *dp = dev_get_drvdata(dev);
> @@ -450,14 +450,9 @@ static int rockchip_dp_resume(struct device *dev)
>
>         return analogix_dp_resume(dp->adp);
>  }
> -#endif
>
> -static const struct dev_pm_ops rockchip_dp_pm_ops = {
> -#ifdef CONFIG_PM_SLEEP
> -       .suspend_late = rockchip_dp_suspend,
> -       .resume_early = rockchip_dp_resume,
> -#endif
> -};
> +static DEFINE_RUNTIME_DEV_PM_OPS(rockchip_dp_pm_ops, rockchip_dp_suspend,
> +               rockchip_dp_resume, NULL);
>
>  static const struct rockchip_dp_chip_data rk3399_edp = {
>         .lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
> @@ -485,7 +480,7 @@ struct platform_driver rockchip_dp_driver = {
>         .remove_new = rockchip_dp_remove,
>         .driver = {
>                    .name = "rockchip-dp",
> -                  .pm = &rockchip_dp_pm_ops,
> +                  .pm = pm_ptr(&rockchip_dp_pm_ops),
>                    .of_match_table = rockchip_dp_dt_ids,
>         },
>  };
> --
> 2.39.2
>

Reviewed-by: Robert Foss <rfoss at kernel.org>