[PATCH v1.1 01/13] drm/atomic: Only update crtc->x/y if it's part of the state, v2.

[Maarten Lankhorst <maarten.lankhorst@linux.intel.com>]

Universal planes may not be assigned to the current crtc, so only
update crtc->x/y when the primary is part of the state and bound
to the current crtc.

Changes since v1:
- Add the crtc check.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index e52dfc828e60..9ede58365ae1 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -665,10 +665,16 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
 
 	/* set legacy state in the crtc structure */
 	for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
+		struct drm_plane *primary = crtc->primary;
+
 		crtc->mode = crtc->state->mode;
 		crtc->enabled = crtc->state->enable;
-		crtc->x = crtc->primary->state->src_x >> 16;
-		crtc->y = crtc->primary->state->src_y >> 16;
+
+		if (drm_atomic_get_existing_plane_state(old_state, primary) &&
+		    primary->state->crtc == crtc) {
+			crtc->x = primary->state->src_x >> 16;
+			crtc->y = primary->state->src_y >> 16;
+		}
 
 		if (crtc->state->enable)
 			drm_calc_timestamping_constants(crtc,

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