The plane's atomic_check returns -EINVAL if the CRTC has not been set. This is the case for disabled planes, for which atomic_check should return 0. For disabled planes, it also omits the mandatory call to drm_atomic_helper_check_plane_state().
Replace the test with the boiler-plate code that first invokes drm_atomic_helper_check_plane_state() and then tests for the plane to be visible. Return early for non-visible planes. Signed-off-by: Thomas Zimmermann <[email protected]> Fixes: d51f9fbd98b6 ("drm/ssd130x: Store the HW buffer in the driver-private CRTC state") Cc: Geert Uytterhoeven <[email protected]> Cc: Javier Martinez Canillas <[email protected]> Cc: Maxime Ripard <[email protected]> --- drivers/gpu/drm/solomon/ssd130x.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c index 3dd8e8a444b6f..dccbfe33edb5e 100644 --- a/drivers/gpu/drm/solomon/ssd130x.c +++ b/drivers/gpu/drm/solomon/ssd130x.c @@ -639,21 +639,22 @@ static int ssd130x_primary_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane); struct ssd130x_plane_state *ssd130x_state = to_ssd130x_plane_state(plane_state); struct drm_crtc *crtc = plane_state->crtc; - struct drm_crtc_state *crtc_state; + struct drm_crtc_state *crtc_state = NULL; const struct drm_format_info *fi; unsigned int pitch; int ret; - if (!crtc) - return -EINVAL; - - crtc_state = drm_atomic_get_crtc_state(state, crtc); - if (IS_ERR(crtc_state)) - return PTR_ERR(crtc_state); + if (crtc) + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); - ret = drm_plane_helper_atomic_check(plane, state); + ret = drm_atomic_helper_check_plane_state(plane_state, crtc_state, + DRM_PLANE_NO_SCALING, + DRM_PLANE_NO_SCALING, + false, false); if (ret) return ret; + else if (!plane_state->visible) + return 0; fi = drm_format_info(DRM_FORMAT_R1); if (!fi) -- 2.42.0
