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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c
..
..
@@ -1,34 +1,22 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright 2015 Freescale Semiconductor, Inc.
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  *
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  * Freescale DCU drm device driver
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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  */
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7
 
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 #include <linux/backlight.h>
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 #include <linux/of_graph.h>
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10
 
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-#include <drm/drmP.h>
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 #include <drm/drm_atomic_helper.h>
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-#include <drm/drm_crtc_helper.h>
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+#include <drm/drm_bridge.h>
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 #include <drm/drm_of.h>
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 #include <drm/drm_panel.h>
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+#include <drm/drm_probe_helper.h>
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+#include <drm/drm_simple_kms_helper.h>
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17
 
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 #include "fsl_dcu_drm_drv.h"
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 #include "fsl_tcon.h"
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-
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-static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder)
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-{
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-	drm_encoder_cleanup(encoder);
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-}
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-
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-static const struct drm_encoder_funcs encoder_funcs = {
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-	.destroy = fsl_dcu_drm_encoder_destroy,
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-};
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 int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev,
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 			       struct drm_crtc *crtc)
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@@ -42,8 +30,8 @@
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 	if (fsl_dev->tcon)
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 		fsl_tcon_bypass_enable(fsl_dev->tcon);
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-	ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs,
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-			       DRM_MODE_ENCODER_LVDS, NULL);
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+	ret = drm_simple_encoder_init(fsl_dev->drm, encoder,
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+				      DRM_MODE_ENCODER_LVDS);
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 	if (ret < 0)
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 		return ret;
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37
 
..
..
@@ -52,10 +40,7 @@
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40
 
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 static void fsl_dcu_drm_connector_destroy(struct drm_connector *connector)
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 {
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-	struct fsl_dcu_drm_connector *fsl_con = to_fsl_dcu_connector(connector);
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-
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 	drm_connector_unregister(connector);
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-	drm_panel_detach(fsl_con->panel);
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 	drm_connector_cleanup(connector);
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 }
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46
 
..
..
@@ -70,17 +55,9 @@
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 static int fsl_dcu_drm_connector_get_modes(struct drm_connector *connector)
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 {
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 	struct fsl_dcu_drm_connector *fsl_connector;
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-	int (*get_modes)(struct drm_panel *panel);
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-	int num_modes = 0;
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 	fsl_connector = to_fsl_dcu_connector(connector);
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-	if (fsl_connector->panel && fsl_connector->panel->funcs &&
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-	    fsl_connector->panel->funcs->get_modes) {
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-		get_modes = fsl_connector->panel->funcs->get_modes;
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-		num_modes = get_modes(fsl_connector->panel);
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-	}
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-
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-	return num_modes;
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+	return drm_panel_get_modes(fsl_connector->panel, connector);
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 }
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 static int fsl_dcu_drm_connector_mode_valid(struct drm_connector *connector,
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@@ -121,12 +98,6 @@
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 	if (ret < 0)
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 		goto err_sysfs;
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-	ret = drm_panel_attach(panel, connector);
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-	if (ret) {
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-		dev_err(fsl_dev->dev, "failed to attach panel\n");
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-		goto err_sysfs;
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-	}
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-
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 	return 0;
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 err_sysfs:
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@@ -163,5 +134,5 @@
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 		return fsl_dcu_attach_panel(fsl_dev, panel);
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 	}
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-	return drm_bridge_attach(&fsl_dev->encoder, bridge, NULL);
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+	return drm_bridge_attach(&fsl_dev->encoder, bridge, NULL, 0);
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 }