[PATCH] drm/tilcdc: Convert drm_atomic_helper_suspend/resume()

[Souptick Joarder]

On Wed, Aug 8, 2018 at 9:43 PM Souptick Joarder <jrdr.linux at gmail.com> wrote:
>
> convert drm_atomic_helper_suspend/resume() to use
> drm_mode_config_helper_suspend/resume().
>
> saved_state in tilcdc_drm_private will not be used
> anymore, so it can be removed.

Any comment on this patch ?
>
> Signed-off-by: Ajit Negi <ajitn.linux at gmail.com>
> Signed-off-by: Souptick Joarder <jrdr.linux at gmail.com>
> ---
>  drivers/gpu/drm/tilcdc/tilcdc_drv.c | 14 ++++----------
>  drivers/gpu/drm/tilcdc/tilcdc_drv.h |  3 ---
>  2 files changed, 4 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index 0fb300d..33e5332 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -554,29 +554,23 @@ static int tilcdc_debugfs_init(struct drm_minor *minor)
>  static int tilcdc_pm_suspend(struct device *dev)
>  {
>         struct drm_device *ddev = dev_get_drvdata(dev);
> -       struct tilcdc_drm_private *priv = ddev->dev_private;
> +       int ret = 0;
>
> -       priv->saved_state = drm_atomic_helper_suspend(ddev);
> +       ret = drm_mode_config_helper_suspend(ddev);
>
>         /* Select sleep pin state */
>         pinctrl_pm_select_sleep_state(dev);
>
> -       return 0;
> +       return ret;
>  }
>
>  static int tilcdc_pm_resume(struct device *dev)
>  {
>         struct drm_device *ddev = dev_get_drvdata(dev);
> -       struct tilcdc_drm_private *priv = ddev->dev_private;
> -       int ret = 0;
>
>         /* Select default pin state */
>         pinctrl_pm_select_default_state(dev);
> -
> -       if (priv->saved_state)
> -               ret = drm_atomic_helper_resume(ddev, priv->saved_state);
> -
> -       return ret;
> +       return  drm_mode_config_helper_resume(ddev);
>  }
>  #endif
>
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> index ead5122..62cea5f 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> @@ -70,9 +70,6 @@ struct tilcdc_drm_private {
>         const uint32_t *pixelformats;
>         uint32_t num_pixelformats;
>
> -       /* The context for pm susped/resume cycle is stored here */
> -       struct drm_atomic_state *saved_state;
> -
>  #ifdef CONFIG_CPU_FREQ
>         struct notifier_block freq_transition;
>  #endif
> --
> 1.9.1
>