drm/panel: seiko-43wvf1g: use drm_panel backlight support (5a3e5161) · Commits · 戴 / test

drivers/gpu/drm/panel/panel-seiko-43wvf1g.c

+6 −30

Original line number	Diff line number	Diff line
		@@ -6,7 +6,6 @@
		* Based on Panel Simple driver by Thierry Reding <treding@nvidia.com>
		*/

		#include <linux/backlight.h>
		#include <linux/delay.h>
		#include <linux/module.h>
		#include <linux/of.h>
		@@ -46,7 +45,6 @@ struct seiko_panel {
		bool prepared;
		bool enabled;
		const struct seiko_panel_desc *desc;
		struct backlight_device *backlight;
		struct regulator *dvdd;
		struct regulator *avdd;
		};
		@@ -127,12 +125,6 @@ static int seiko_panel_disable(struct drm_panel *panel)
		if (!p->enabled)
		return 0;

		if (p->backlight) {
		p->backlight->props.power = FB_BLANK_POWERDOWN;
		p->backlight->props.state \|= BL_CORE_FBBLANK;
		backlight_update_status(p->backlight);
		}

		p->enabled = false;

		return 0;
		@@ -196,12 +188,6 @@ static int seiko_panel_enable(struct drm_panel *panel)
		if (p->enabled)
		return 0;

		if (p->backlight) {
		p->backlight->props.state &= ~BL_CORE_FBBLANK;
		p->backlight->props.power = FB_BLANK_UNBLANK;
		backlight_update_status(p->backlight);
		}

		p->enabled = true;

		return 0;
		@@ -245,7 +231,6 @@ static const struct drm_panel_funcs seiko_panel_funcs = {
		static int seiko_panel_probe(struct device *dev,
		const struct seiko_panel_desc *desc)
		{
		struct device_node *backlight;
		struct seiko_panel *panel;
		int err;

		@@ -265,18 +250,13 @@ static int seiko_panel_probe(struct device *dev,
		if (IS_ERR(panel->avdd))
		return PTR_ERR(panel->avdd);

		backlight = of_parse_phandle(dev->of_node, "backlight", 0);
		if (backlight) {
		panel->backlight = of_find_backlight_by_node(backlight);
		of_node_put(backlight);

		if (!panel->backlight)
		return -EPROBE_DEFER;
		}

		drm_panel_init(&panel->base, dev, &seiko_panel_funcs,
		DRM_MODE_CONNECTOR_DPI);

		err = drm_panel_of_backlight(&panel->base);
		if (err)
		return err;

		err = drm_panel_add(&panel->base);
		if (err < 0)
		return err;
		@@ -291,11 +271,7 @@ static int seiko_panel_remove(struct platform_device *pdev)
		struct seiko_panel *panel = dev_get_drvdata(&pdev->dev);

		drm_panel_remove(&panel->base);

		seiko_panel_disable(&panel->base);

		if (panel->backlight)
		put_device(&panel->backlight->dev);
		drm_panel_disable(&panel->base);

		return 0;
		}
		@@ -304,7 +280,7 @@ static void seiko_panel_shutdown(struct platform_device *pdev)
		{
		struct seiko_panel *panel = dev_get_drvdata(&pdev->dev);

		seiko_panel_disable(&panel->base);
		drm_panel_disable(&panel->base);
		}

		static const struct display_timing seiko_43wvf1g_timing = {

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