disp: msm: sde: update RSC when QSYNC property is updated

RSC is updated during encoder enable/disable/modeset or power-
collapse/wakeup. The RSC vote for primary display will change
depending on QSYNC status which might change without modeset or
power-collapse. Add a call to update the primary display's vote
when the QSYNC property is updated.

Change-Id: I664754e4aae689ef2db5b1ef7b8b55a4c5fad3be
Signed-off-by: Steve Cohen <cohens@codeaurora.org>

msm/sde/sde_encoder.c

@@ -4060,6 +4060,10 @@ int sde_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc,
 					sde_connector_is_qsync_updated(
 					sde_enc->cur_master->connector)) {
 				_helper_flush_qsync(phys);
+
+				if (is_cmd_mode)
+					_sde_encoder_update_rsc_client(drm_enc,
+							true);
 			}
 		}
 	}