drm/atomic-helper: Change parameter name of drm_atomic_helper_update_legacy_modeset_state()

drm_atomic_helper_update_legacy_modeset_state() updates all the legacy
modeset pointers a connector, encoder or CRTC might have with the ones
being setup by a given commit. It takes the drm_atomic_state being
committed as a parameter.

However, that parameter name is called (and documented) as old_state,
which is pretty confusing. Let's rename that variable as state.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-14-e71598f49c8f@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>

Author: mripard

drivers/gpu/drm/drm_atomic_helper.c

@@ -1277,7 +1277,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *state)
 /**
  * drm_atomic_helper_update_legacy_modeset_state - update legacy modeset state
  * @dev: DRM device
- * @old_state: atomic state object with old state structures
+ * @state: atomic state object being committed
  *
  * This function updates all the various legacy modeset state pointers in
  * connectors, encoders and CRTCs.
@@ -1293,7 +1293,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *state)
  */
 void
 drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
-					      struct drm_atomic_state *old_state)
+					      struct drm_atomic_state *state)
 {
 	struct drm_connector *connector;
 	struct drm_connector_state *old_conn_state, *new_conn_state;
@@ -1302,7 +1302,7 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
 	int i;
 
 	/* clear out existing links and update dpms */
-	for_each_oldnew_connector_in_state(old_state, connector, old_conn_state, new_conn_state, i) {
+	for_each_oldnew_connector_in_state(state, connector, old_conn_state, new_conn_state, i) {
 		if (connector->encoder) {
 			WARN_ON(!connector->encoder->crtc);
 
@@ -1323,7 +1323,7 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
 	}
 
 	/* set new links */
-	for_each_new_connector_in_state(old_state, connector, new_conn_state, i) {
+	for_each_new_connector_in_state(state, connector, new_conn_state, i) {
 		if (!new_conn_state->crtc)
 			continue;
 
@@ -1335,15 +1335,15 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
 	}
 
 	/* set legacy state in the crtc structure */
-	for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) {
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
 		struct drm_plane *primary = crtc->primary;
 		struct drm_plane_state *new_plane_state;
 
 		crtc->mode = new_crtc_state->mode;
 		crtc->enabled = new_crtc_state->enable;
 
 		new_plane_state =
-			drm_atomic_get_new_plane_state(old_state, primary);
+			drm_atomic_get_new_plane_state(state, primary);
 
 		if (new_plane_state && new_plane_state->crtc == crtc) {
 			crtc->x = new_plane_state->src_x >> 16;