add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/gpu/drm/msm/disp/mdp4/mdp4_lvds_connector.c
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@@ -1,22 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2014 Red Hat
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  * Author: Rob Clark <robdclark@gmail.com>
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  * Author: Vinay Simha <vinaysimha@inforcecomputing.com>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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-
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-#include <linux/gpio.h>
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 #include "mdp4_kms.h"
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..
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@@ -63,19 +50,15 @@
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 	struct drm_panel *panel = mdp4_lvds_connector->panel;
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 	int ret = 0;
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-	if (panel) {
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-		drm_panel_attach(panel, connector);
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-
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-		ret = panel->funcs->get_modes(panel);
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-
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-		drm_panel_detach(panel);
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-	}
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+	if (panel)
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+		ret = drm_panel_get_modes(panel, connector);
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 	return ret;
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 }
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-static int mdp4_lvds_connector_mode_valid(struct drm_connector *connector,
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-				 struct drm_display_mode *mode)
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+static enum drm_mode_status
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+mdp4_lvds_connector_mode_valid(struct drm_connector *connector,
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+			       struct drm_display_mode *mode)
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 {
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 	struct mdp4_lvds_connector *mdp4_lvds_connector =
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 			to_mdp4_lvds_connector(connector);