On Tue, 2025-12-30 at 11:03 -0300, Nícolas F. R. A. Prado wrote:
> Commit 9882a4064003 ("drm/mediatek: Disable AFBC support on Mediatek DRM
> driver") disabled AFBC support on the MediaTek DRM driver since it was
> broken.
>
> With the bugs in the AFBC support now fixed, re-enable the support.
>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> ---
> drivers/gpu/drm/mediatek/mtk_plane.c | 24 +++++++++++++++++++++++-
> 1 file changed, 23 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediatek/mtk_plane.c
> index 8fb08768e8ce..38dd94cdd665 100644
> --- a/drivers/gpu/drm/mediatek/mtk_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_plane.c
> @@ -22,6 +22,9 @@
>
> static const u64 modifiers[] = {
> DRM_FORMAT_MOD_LINEAR,
> + DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
> + AFBC_FORMAT_MOD_SPLIT |
> + AFBC_FORMAT_MOD_SPARSE),
> DRM_FORMAT_MOD_INVALID,
> };
>
> @@ -69,7 +72,26 @@ static bool mtk_plane_format_mod_supported(struct drm_plane *plane,
> uint32_t format,
> uint64_t modifier)
> {
> - return modifier == DRM_FORMAT_MOD_LINEAR;
> + if (modifier == DRM_FORMAT_MOD_LINEAR)
> + return true;
> +
> + if (modifier != DRM_FORMAT_MOD_ARM_AFBC(
> + AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
> + AFBC_FORMAT_MOD_SPLIT |
> + AFBC_FORMAT_MOD_SPARSE))
> + return false;
> +
> + if (format != DRM_FORMAT_XRGB8888 &&
> + format != DRM_FORMAT_ARGB8888 &&
> + format != DRM_FORMAT_BGRX8888 &&
> + format != DRM_FORMAT_BGRA8888 &&
> + format != DRM_FORMAT_ABGR8888 &&
> + format != DRM_FORMAT_XBGR8888 &&
> + format != DRM_FORMAT_RGB888 &&
> + format != DRM_FORMAT_BGR888)
> + return false;
> +
> + return true;
> }
>
> static void mtk_plane_destroy_state(struct drm_plane *plane,
>