This bug is found when running IGT tests. For CRTCs that doesn't support rotation should still return DRM_MODE_ROTATE_0. Since both OVL and OVL adaptor on MTK chip doesn't support rotation, return the capability of the hardware accordingly. Hsiao Chien Sung (1): drm/mediatek: Fix errors when reporting rotation capability drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 8 +------- drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 5 +++++ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 + drivers/gpu/drm/mediatek/mtk_drm_plane.c | 2 +- 5 files changed, 9 insertions(+), 8 deletions(-) -- 2.18.0