The plane size must match the CRTC already (enforced by not setting the CAN_POSTION flag). However, the controller also requires the framebuffer to be exactly the CRTC size. Make use of the new flag DRM_PLANE_REQUIRE_MATCHING_FB to match the plane size.
Signed-off-by: Stefan Agner stefan@agner.ch --- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c index c24ef330718e..7091da1c73cc 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c @@ -410,7 +410,8 @@ static int mxsfb_plane_atomic_check(struct drm_plane *plane, return drm_atomic_helper_check_plane_state(plane_state, crtc_state, DRM_PLANE_HELPER_NO_SCALING, DRM_PLANE_HELPER_NO_SCALING, - DRM_PLANE_CAN_UPDATE_DISABLED); + DRM_PLANE_CAN_UPDATE_DISABLED | + DRM_PLANE_REQUIRE_MATCHING_FB); }
static void mxsfb_plane_primary_atomic_update(struct drm_plane *plane,