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hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/gpu/drm/exynos/exynos_drm_dpi.c
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@@ -1,22 +1,20 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Exynos DRM Parallel output support.
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  *
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  * Copyright (c) 2014 Samsung Electronics Co., Ltd
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  *
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  * Contacts: Andrzej Hajda <a.hajda@samsung.com>
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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 version 2 as
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- * published by the Free Software Foundation.
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 */
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-
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-#include <drm/drmP.h>
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-#include <drm/drm_crtc_helper.h>
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-#include <drm/drm_panel.h>
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-#include <drm/drm_atomic_helper.h>
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 #include <linux/of_graph.h>
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 #include <linux/regulator/consumer.h>
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+
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+#include <drm/drm_atomic_helper.h>
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+#include <drm/drm_panel.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 <video/of_videomode.h>
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 #include <video/videomode.h>
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@@ -44,11 +42,6 @@
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 static enum drm_connector_status
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 exynos_dpi_detect(struct drm_connector *connector, bool force)
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 {
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-	struct exynos_dpi *ctx = connector_to_dpi(connector);
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-
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-	if (ctx->panel && !ctx->panel->connector)
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-		drm_panel_attach(ctx->panel, &ctx->connector);
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-
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 	return connector_status_connected;
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 }
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@@ -77,7 +70,8 @@
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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(ctx->dev,
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+				      "failed to create a new display mode\n");
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 			return 0;
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 		}
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 		drm_display_mode_from_videomode(ctx->vm, mode);
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@@ -87,7 +81,7 @@
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 	}
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 	if (ctx->panel)
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-		return ctx->panel->funcs->get_modes(ctx->panel);
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+		return drm_panel_get_modes(ctx->panel, connector);
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 	return 0;
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 }
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@@ -108,7 +102,8 @@
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 				 &exynos_dpi_connector_funcs,
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 				 DRM_MODE_CONNECTOR_VGA);
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 	if (ret) {
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-		DRM_ERROR("failed to initialize connector with drm\n");
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+		DRM_DEV_ERROR(ctx->dev,
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+			      "failed to initialize connector with drm\n");
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 		return ret;
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 	}
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@@ -148,10 +143,6 @@
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 	.mode_set = exynos_dpi_mode_set,
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 	.enable = exynos_dpi_enable,
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 	.disable = exynos_dpi_disable,
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-};
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-
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-static const struct drm_encoder_funcs exynos_dpi_encoder_funcs = {
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-	.destroy = drm_encoder_cleanup,
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 };
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 enum {
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@@ -202,8 +193,7 @@
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 {
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 	int ret;
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-	drm_encoder_init(dev, encoder, &exynos_dpi_encoder_funcs,
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-			 DRM_MODE_ENCODER_TMDS, NULL);
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+	drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
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 	drm_encoder_helper_add(encoder, &exynos_dpi_encoder_helper_funcs);
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@@ -213,7 +203,8 @@
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 	ret = exynos_dpi_create_connector(encoder);
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 	if (ret) {
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-		DRM_ERROR("failed to create connector ret = %d\n", ret);
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+		DRM_DEV_ERROR(encoder_to_dpi(encoder)->dev,
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+			      "failed to create connector ret = %d\n", ret);
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 		drm_encoder_cleanup(encoder);
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 		return ret;
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 	}
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@@ -252,9 +243,6 @@
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 	struct exynos_dpi *ctx = encoder_to_dpi(encoder);
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 	exynos_dpi_disable(&ctx->encoder);
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-
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-	if (ctx->panel)
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-		drm_panel_detach(ctx->panel);
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 	return 0;
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 }