Re: [PATCH] drm/mediatek: Find the cursor plane instead of hard coding it

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Apologies for the confusing thread. Please apply the above patch:
'drm/mediatek: Find the cursor plane instead of hard coding it'
before Sean Paul's original patch:
'drm/mediatek: Ensure the cursor plane is on top of other overlays'

This way authorship is correctly preserved, but we do not introduce the bug.

Thanks


On Fri, Feb 7, 2020 at 3:23 PM Evan Benn <evanbenn@xxxxxxxxxxxx> wrote:
>
> The cursor and primary planes were hard coded.
> Now search for them for passing to drm_crtc_init_with_planes
>
> Signed-off-by: Evan Benn <evanbenn@xxxxxxxxxxxx>
> ---
>
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 18 ++++++++++++------
>  1 file changed, 12 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index 7b392d6c71cc..935652990afa 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -658,10 +658,18 @@ static const struct drm_crtc_helper_funcs mtk_crtc_helper_funcs = {
>
>  static int mtk_drm_crtc_init(struct drm_device *drm,
>                              struct mtk_drm_crtc *mtk_crtc,
> -                            struct drm_plane *primary,
> -                            struct drm_plane *cursor, unsigned int pipe)
> +                            unsigned int pipe)
>  {
> -       int ret;
> +       struct drm_plane *primary = NULL;
> +       struct drm_plane *cursor = NULL;
> +       int i, ret;
> +
> +       for (i = 0; i < mtk_crtc->layer_nr; i++) {
> +               if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_PRIMARY)
> +                       primary = &mtk_crtc->planes[i];
> +               else if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_CURSOR)
> +                       cursor = &mtk_crtc->planes[i];
> +       }
>
>         ret = drm_crtc_init_with_planes(drm, &mtk_crtc->base, primary, cursor,
>                                         &mtk_crtc_funcs, NULL);
> @@ -830,9 +838,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
>                         return ret;
>         }
>
> -       ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, &mtk_crtc->planes[0],
> -                               mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] :
> -                               NULL, pipe);
> +       ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, pipe);
>         if (ret < 0)
>                 return ret;
>
> --
> 2.25.0.341.g760bfbb309-goog
>
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