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Hi, Shawn:
On Fri, 2024-03-22 at 13:28 +0800, Shawn Sung wrote:
> From: Hsiao Chien Sung <shawn.sung@mediatek.com>
>
> Always add DRM_MODE_ROTATE_0 to rotation property to meet
> IGT's (Intel GPU Tools) requirement.
Reviewed-by: CK Hu <ck.hu@mediatek.com>
>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@collabora.com>
> Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_ddp_comp.h | 6 +++++-
> drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 21 +++++++++------------
> drivers/gpu/drm/mediatek/mtk_plane.c | 2 +-
> 3 files changed, 15 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
> b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
> index 26236691ce4c2..f7fe2e08dc8e2 100644
> --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
> @@ -192,7 +192,11 @@ unsigned int
> mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp *comp)
> if (comp->funcs && comp->funcs->supported_rotations)
> return comp->funcs->supported_rotations(comp->dev);
>
> -return 0;
> +/*
> + * In order to pass IGT tests, DRM_MODE_ROTATE_0 is required
> when
> + * rotation is not supported.
> + */
> +return DRM_MODE_ROTATE_0;
> }
>
> static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp
> *comp)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index 0ebeaf9830d83..2a767a823c83a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -288,6 +288,10 @@ unsigned int mtk_ovl_layer_nr(struct device
> *dev)
>
> unsigned int mtk_ovl_supported_rotations(struct device *dev)
> {
> +/*
> + * although currently OVL can only do reflection,
> + * reflect x + reflect y = rotate 180
> + */
> return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
> DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
> }
> @@ -296,27 +300,20 @@ int mtk_ovl_layer_check(struct device *dev,
> unsigned int idx,
> struct mtk_plane_state *mtk_state)
> {
> struct drm_plane_state *state = &mtk_state->base;
> -unsigned int rotation = 0;
>
> -rotation = drm_rotation_simplify(state->rotation,
> - DRM_MODE_ROTATE_0 |
> - DRM_MODE_REFLECT_X |
> - DRM_MODE_REFLECT_Y);
> -rotation &= ~DRM_MODE_ROTATE_0;
> -
> -/* We can only do reflection, not rotation */
> -if ((rotation & DRM_MODE_ROTATE_MASK) != 0)
> +/* check if any unsupported rotation is set */
> +if (state->rotation & ~mtk_ovl_supported_rotations(dev))
> return -EINVAL;
>
> /*
> * TODO: Rotating/reflecting YUV buffers is not supported at
> this time.
> * Only RGB[AX] variants are supported.
> + * Since DRM_MODE_ROTATE_0 means "no rotation", we
> should not
> + * reject layers with this property.
> */
> -if (state->fb->format->is_yuv && rotation != 0)
> +if (state->fb->format->is_yuv && (state->rotation &
> ~DRM_MODE_ROTATE_0))
> return -EINVAL;
>
> -state->rotation = rotation;
> -
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c
> b/drivers/gpu/drm/mediatek/mtk_plane.c
> index a74b26d359857..1723d4333f371 100644
> --- a/drivers/gpu/drm/mediatek/mtk_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_plane.c
> @@ -338,7 +338,7 @@ int mtk_plane_init(struct drm_device *dev, struct
> drm_plane *plane,
> return err;
> }
>
> -if (supported_rotations & ~DRM_MODE_ROTATE_0) {
> +if (supported_rotations) {
> err = drm_plane_create_rotation_property(plane,
> DRM_MODE_ROTAT
> E_0,
> supported_rota
> tions);
</pre>
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