[Intel-gfx] [PATCH 3/4] drm/atomic: Move enable/connector check up in check_modeset()

[Maarten Lankhorst]

Now that handle_conflicting_encoders no longer touches active state,
so there's no need to do the check quite that late any more.

Doing it with all the other checks makes it a lot more clear what the
below block tries to accomplish, and this feels like a better place to
put the check.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/drm_atomic_helper.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index d267f45d2c9a..543ac330a1ae 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -494,6 +494,9 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
 	int i, ret;
 
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		bool has_connectors =
+			!!new_crtc_state->connector_mask;
+
 		if (!drm_mode_equal(&old_crtc_state->mode, &new_crtc_state->mode)) {
 			DRM_DEBUG_ATOMIC("[CRTC:%d:%s] mode changed\n",
 					 crtc->base.id, crtc->name);
@@ -521,6 +524,13 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
 					 crtc->base.id, crtc->name);
 			new_crtc_state->active_changed = true;
 		}
+
+		if (new_crtc_state->enable != has_connectors) {
+			DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled/connectors mismatch\n",
+					 crtc->base.id, crtc->name);
+
+			return -EINVAL;
+		}
 	}
 
 	ret = handle_conflicting_encoders(state, false);
@@ -554,9 +564,6 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
 	 * crtc only changed its mode but has the same set of connectors.
 	 */
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
-		bool has_connectors =
-			!!new_crtc_state->connector_mask;
-
 		if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
 			continue;
 
@@ -572,13 +579,6 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
 		ret = drm_atomic_add_affected_planes(state, crtc);
 		if (ret != 0)
 			return ret;
-
-		if (new_crtc_state->enable != has_connectors) {
-			DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled/connectors mismatch\n",
-					 crtc->base.id, crtc->name);
-
-			return -EINVAL;
-		}
 	}
 
 	return mode_fixup(state);
-- 
2.7.4