disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/sti/sti_dvo.c
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@@ -11,10 +11,12 @@
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 #include <linux/of_gpio.h>
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 #include <linux/platform_device.h>
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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_device.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 "sti_awg_utils.h"
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 #include "sti_drv.h"
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@@ -64,7 +66,7 @@
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 	.awg_fwgen_fct = sti_awg_generate_code_data_enable_mode,
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 };
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-/**
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+/*
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  * STI digital video output structure
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  *
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  * @dev: driver device
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@@ -194,16 +196,16 @@
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 	{ "dvo", dvo_dbg_show, 0, NULL },
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 };
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-static int dvo_debugfs_init(struct sti_dvo *dvo, struct drm_minor *minor)
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+static void dvo_debugfs_init(struct sti_dvo *dvo, struct drm_minor *minor)
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 {
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 	unsigned int i;
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 	for (i = 0; i < ARRAY_SIZE(dvo_debugfs_files); i++)
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 		dvo_debugfs_files[i].data = dvo;
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-	return drm_debugfs_create_files(dvo_debugfs_files,
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-					ARRAY_SIZE(dvo_debugfs_files),
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-					minor->debugfs_root, minor);
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+	drm_debugfs_create_files(dvo_debugfs_files,
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+				 ARRAY_SIZE(dvo_debugfs_files),
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+				 minor->debugfs_root, minor);
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 }
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 static void sti_dvo_disable(struct drm_bridge *bridge)
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@@ -220,8 +222,7 @@
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 	writel(0x00000000, dvo->regs + DVO_DOF_CFG);
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-	if (dvo->panel)
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-		dvo->panel->funcs->disable(dvo->panel);
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+	drm_panel_disable(dvo->panel);
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 	/* Disable/unprepare dvo clock */
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 	clk_disable_unprepare(dvo->clk_pix);
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@@ -261,8 +262,7 @@
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 	if (clk_prepare_enable(dvo->clk))
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 		DRM_ERROR("Failed to prepare/enable dvo clk\n");
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-	if (dvo->panel)
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-		dvo->panel->funcs->enable(dvo->panel);
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+	drm_panel_enable(dvo->panel);
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 	/* Set LUT */
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 	writel(config->lowbyte,  dvo->regs + DVO_LUT_PROG_LOW);
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@@ -277,8 +277,8 @@
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 }
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 static void sti_dvo_set_mode(struct drm_bridge *bridge,
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-			     struct drm_display_mode *mode,
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-			     struct drm_display_mode *adjusted_mode)
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+			     const struct drm_display_mode *mode,
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+			     const struct drm_display_mode *adjusted_mode)
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 {
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 	struct sti_dvo *dvo = bridge->driver_private;
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 	struct sti_mixer *mixer = to_sti_mixer(dvo->encoder->crtc);
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@@ -288,7 +288,7 @@
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 	DRM_DEBUG_DRIVER("\n");
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-	memcpy(&dvo->mode, mode, sizeof(struct drm_display_mode));
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+	drm_mode_copy(&dvo->mode, mode);
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 	/* According to the path used (main or aux), the dvo clocks should
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 	 * have a different parent clock. */
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@@ -339,15 +339,16 @@
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 	struct sti_dvo *dvo = dvo_connector->dvo;
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 	if (dvo->panel)
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-		return dvo->panel->funcs->get_modes(dvo->panel);
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+		return drm_panel_get_modes(dvo->panel, connector);
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 	return 0;
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 }
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 #define CLK_TOLERANCE_HZ 50
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-static int sti_dvo_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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+sti_dvo_connector_mode_valid(struct drm_connector *connector,
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+			     struct drm_display_mode *mode)
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 {
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 	int target = mode->clock * 1000;
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 	int target_min = target - CLK_TOLERANCE_HZ;
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@@ -389,8 +390,6 @@
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 		dvo->panel = of_drm_find_panel(dvo->panel_node);
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 		if (IS_ERR(dvo->panel))
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 			dvo->panel = NULL;
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-		else
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-			drm_panel_attach(dvo->panel, connector);
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 	}
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 	if (dvo->panel)
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@@ -405,10 +404,7 @@
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 		= to_sti_dvo_connector(connector);
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 	struct sti_dvo *dvo = dvo_connector->dvo;
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-	if (dvo_debugfs_init(dvo, dvo->drm_dev->primary)) {
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-		DRM_ERROR("DVO debugfs setup failed\n");
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-		return -EINVAL;
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-	}
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+	dvo_debugfs_init(dvo, dvo->drm_dev->primary);
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 	return 0;
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 }
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@@ -467,7 +463,7 @@
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 	bridge->of_node = dvo->dev.of_node;
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 	drm_bridge_add(bridge);
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-	err = drm_bridge_attach(encoder, bridge, NULL);
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+	err = drm_bridge_attach(encoder, bridge, NULL, 0);
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 	if (err) {
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 		DRM_ERROR("Failed to attach bridge\n");
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 		return err;
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@@ -534,7 +530,7 @@
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 		DRM_ERROR("Invalid dvo resource\n");
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 		return -ENOMEM;
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 	}
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-	dvo->regs = devm_ioremap_nocache(dev, res->start,
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+	dvo->regs = devm_ioremap(dev, res->start,
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 			resource_size(res));
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 	if (!dvo->regs)
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 		return -ENOMEM;