drm/sti: in crtc_atomic_flush, enable only planes of this crtc

crtc_atomic_flush performs some additional processing, like plane
enable at mixer level.
Enable only the planes attached to the CRTC.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Vincent Abriou <vincent.abriou@st.com>

diff --git a/drivers/gpu/drm/sti/sti_crtc.c b/drivers/gpu/drm/sti/sti_crtc.c
index 96afe68..bc1b186 100644 (file)
--- a/drivers/gpu/drm/sti/sti_crtc.c
+++ b/drivers/gpu/drm/sti/sti_crtc.c
@@ -165,6 +165,10 @@ static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
 
                switch (plane->status) {
                case STI_PLANE_UPDATED:
+                       /* ignore update for other CRTC */
+                       if (p->state->crtc != crtc)
+                               continue;
+
                        /* update planes tag as updated */
                        DRM_DEBUG_DRIVER("update plane %s\n",
                                         sti_plane_to_str(plane));