diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_crtc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index 42c3b44f9689..2832dbffd873 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -414,7 +414,13 @@ static void omap_crtc_atomic_flush(struct drm_crtc *crtc, dispc_mgr_set_gamma(omap_crtc->channel, lut, length); } - /* Only flush the CRTC if it is currently enabled. */ + /* + * Only flush the CRTC if it is currently enabled. CRTCs that require a + * mode set are disabled prior plane updates and enabled afterwards. + * They are thus not active (regardless of what their CRTC core state + * reports) and the DRM core could thus call this function even though + * the CRTC is currently disabled. Do nothing in that case. + */ if (!omap_crtc->enabled) return; |