drm/atomic: Don't set crtc_state->enable manually

The enable field needs to be kept in sync with the mode_blob field. Call
drm_atomic_set_mode_prop_for_crtc() instead of setting enable to false
in order to dereference the mode blob correctly.

v2:
- Check the return value of drm_atomic_set_mode_prop_for_crtc()
- Drop the num_connectors local variable

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index b06a607..5b59d5a 100644 (file)
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1555,10 +1555,14 @@ static int update_output_state(struct drm_atomic_state *state,
                if (crtc == set->crtc)
                        continue;
 
-               crtc_state->enable =
-                       drm_atomic_connectors_for_crtc(state, crtc);
-               if (!crtc_state->enable)
+               if (!drm_atomic_connectors_for_crtc(state, crtc)) {
+                       ret = drm_atomic_set_mode_prop_for_crtc(crtc_state,
+                                                               NULL);
+                       if (ret < 0)
+                               return ret;
+
                        crtc_state->active = false;
+               }
        }
 
        return 0;