add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/drivers/gpu/drm/exynos/exynos_dp.c
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@@ -1,33 +1,31 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Samsung SoC DP (Display Port) interface driver.
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  *
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  * Copyright (C) 2012 Samsung Electronics Co., Ltd.
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  * Author: Jingoo Han <jg1.han@samsung.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 as published by the
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- * Free Software Foundation; either version 2 of the License, or (at your
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- * option) any later version.
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  */
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8
 
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-#include <linux/module.h>
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-#include <linux/platform_device.h>
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-#include <linux/err.h>
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 #include <linux/clk.h>
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-#include <linux/of_graph.h>
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 #include <linux/component.h>
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+#include <linux/err.h>
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+#include <linux/module.h>
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+#include <linux/of_graph.h>
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+#include <linux/platform_device.h>
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 #include <linux/pm_runtime.h>
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 #include <video/of_display_timing.h>
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 #include <video/of_videomode.h>
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 #include <video/videomode.h>
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19
 
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-#include <drm/drmP.h>
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+#include <drm/bridge/analogix_dp.h>
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+#include <drm/drm_atomic_helper.h>
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+#include <drm/drm_bridge.h>
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 #include <drm/drm_crtc.h>
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-#include <drm/drm_crtc_helper.h>
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 #include <drm/drm_of.h>
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 #include <drm/drm_panel.h>
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-
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-#include <drm/bridge/analogix_dp.h>
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+#include <drm/drm_print.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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 #include <drm/exynos_drm.h>
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 #include "exynos_drm_crtc.h"
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@@ -82,7 +80,8 @@
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 	mode = drm_mode_create(connector->dev);
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 	if (!mode) {
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-		DRM_ERROR("failed to create a new display mode.\n");
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+		DRM_DEV_ERROR(dp->dev,
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+			      "failed to create a new display mode.\n");
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 		return num_modes;
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 	}
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@@ -108,10 +107,11 @@
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 	/* Pre-empt DP connector creation if there's a bridge */
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 	if (dp->ptn_bridge) {
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-		ret = drm_bridge_attach(&dp->encoder, dp->ptn_bridge, bridge);
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+		ret = drm_bridge_attach(&dp->encoder, dp->ptn_bridge, bridge,
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+					0);
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 		if (ret) {
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-			DRM_ERROR("Failed to attach bridge to drm\n");
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-			bridge->next = NULL;
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+			DRM_DEV_ERROR(dp->dev,
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+				      "Failed to attach bridge to drm\n");
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 			return ret;
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 		}
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 	}
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@@ -136,17 +136,14 @@
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 	.disable = exynos_dp_nop,
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 };
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-static const struct drm_encoder_funcs exynos_dp_encoder_funcs = {
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-	.destroy = drm_encoder_cleanup,
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-};
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-
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 static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
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 {
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 	int ret;
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142
 
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 	ret = of_get_videomode(dp->dev->of_node, &dp->vm, OF_USE_NATIVE_MODE);
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 	if (ret) {
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-		DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
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+		DRM_DEV_ERROR(dp->dev,
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+			      "failed: of_get_videomode() : %d\n", ret);
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 		return ret;
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 	}
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 	return 0;
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@@ -159,14 +156,7 @@
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 	struct drm_device *drm_dev = data;
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 	int ret;
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-	dp->dev = dev;
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 	dp->drm_dev = drm_dev;
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-
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-	dp->plat_data.dev_type = EXYNOS_DP;
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-	dp->plat_data.power_on_start = exynos_dp_poweron;
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-	dp->plat_data.power_off = exynos_dp_poweroff;
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-	dp->plat_data.attach = exynos_dp_bridge_attach;
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-	dp->plat_data.get_modes = exynos_dp_get_modes;
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 	if (!dp->plat_data.panel && !dp->ptn_bridge) {
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 		ret = exynos_dp_dt_parse_panel(dp);
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@@ -174,8 +164,7 @@
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 			return ret;
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 	}
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-	drm_encoder_init(drm_dev, encoder, &exynos_dp_encoder_funcs,
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-			 DRM_MODE_ENCODER_TMDS, NULL);
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+	drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_TMDS);
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 	drm_encoder_helper_add(encoder, &exynos_dp_encoder_helper_funcs);
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170
 
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@@ -185,13 +174,11 @@
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 	dp->plat_data.encoder = encoder;
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-	dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);
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-	if (IS_ERR(dp->adp)) {
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+	ret = analogix_dp_bind(dp->adp, dp->drm_dev);
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+	if (ret)
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 		dp->encoder.funcs->destroy(&dp->encoder);
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-		return PTR_ERR(dp->adp);
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-	}
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-	return 0;
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+	return ret;
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 }
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 static void exynos_dp_unbind(struct device *dev, struct device *master,
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@@ -222,6 +209,7 @@
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 	if (!dp)
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 		return -ENOMEM;
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+	dp->dev = dev;
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 	/*
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 	 * We just use the drvdata until driver run into component
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 	 * add function, and then we would set drvdata to null, so
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@@ -247,16 +235,29 @@
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 	/* The remote port can be either a panel or a bridge */
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 	dp->plat_data.panel = panel;
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+	dp->plat_data.dev_type = EXYNOS_DP;
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+	dp->plat_data.power_on_start = exynos_dp_poweron;
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+	dp->plat_data.power_off = exynos_dp_poweroff;
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+	dp->plat_data.attach = exynos_dp_bridge_attach;
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+	dp->plat_data.get_modes = exynos_dp_get_modes;
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 	dp->plat_data.skip_connector = !!bridge;
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+
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 	dp->ptn_bridge = bridge;
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 out:
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+	dp->adp = analogix_dp_probe(dev, &dp->plat_data);
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+	if (IS_ERR(dp->adp))
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+		return PTR_ERR(dp->adp);
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+
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 	return component_add(&pdev->dev, &exynos_dp_ops);
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 }
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 static int exynos_dp_remove(struct platform_device *pdev)
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 {
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+	struct exynos_dp_device *dp = platform_get_drvdata(pdev);
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+
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 	component_del(&pdev->dev, &exynos_dp_ops);
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+	analogix_dp_remove(dp->adp);
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 	return 0;
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 }