drm/msm/dsi: Split mode_flags out of msm_dsi_host_get_panel()

We use the flags in more places than just get_panel, so split them out
into a separate function.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-4-sean@poorly.run

drivers/gpu/drm/msm/dsi/dsi.h

@@ -169,8 +169,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host,
 int msm_dsi_host_power_off(struct mipi_dsi_host *host);
 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 				  const struct drm_display_mode *mode);
-struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
-					unsigned long *panel_flags);
+struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host);
+unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
 int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer);
 void msm_dsi_host_unregister(struct mipi_dsi_host *host);

drivers/gpu/drm/msm/dsi/dsi_host.c

@@ -2442,17 +2442,14 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 	return 0;
 }
 
-struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host,
-				unsigned long *panel_flags)
+struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host)
 {
-	struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
-	struct drm_panel *panel;
-
-	panel = of_drm_find_panel(msm_host->device_node);
-	if (panel_flags)
-			*panel_flags = msm_host->mode_flags;
+	return of_drm_find_panel(to_msm_dsi_host(host)->device_node);
+}
 
-	return panel;
+unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host)
+{
+	return to_msm_dsi_host(host)->mode_flags;
 }
 
 struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host)

drivers/gpu/drm/msm/dsi/dsi_manager.c

@@ -244,8 +244,9 @@ static enum drm_connector_status dsi_mgr_connector_detect(
 
 	DBG("id=%d", id);
 	if (!msm_dsi->panel) {
-		msm_dsi->panel = msm_dsi_host_get_panel(msm_dsi->host,
-						&msm_dsi->device_flags);
+		msm_dsi->panel = msm_dsi_host_get_panel(msm_dsi->host);
+		msm_dsi->device_flags = msm_dsi_host_get_mode_flags(
+						msm_dsi->host);
 
 		/* There is only 1 panel in the global panel list
 		 * for dual DSI mode. Therefore slave dsi should get
@@ -255,7 +256,7 @@ static enum drm_connector_status dsi_mgr_connector_detect(
 		if (!msm_dsi->panel && IS_DUAL_DSI() &&
 			!IS_MASTER_DSI_LINK(id) && other_dsi)
 			msm_dsi->panel = msm_dsi_host_get_panel(
-					other_dsi->host, NULL);
+						other_dsi->host);
 
 
 		if (msm_dsi->panel && kms->funcs->set_encoder_mode) {