From 16793e00a3c17f639e0610549e62c1116a7da1f0 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 7 Dec 2019 15:03:38 +0100 Subject: [PATCH] drm/panel: innolux-p079zca: use drm_panel backlight support Use the backlight support in drm_panel to simplify the driver Signed-off-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Cc: Thierry Reding Cc: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20191207140353.23967-11-sam@ravnborg.org --- drivers/gpu/drm/panel/panel-innolux-p079zca.c | 28 ++++++++------------------- 1 file changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c index b9de37a..7419f1f0 100644 --- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c +++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c @@ -3,7 +3,6 @@ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd */ -#include #include #include #include @@ -52,7 +51,6 @@ struct innolux_panel { struct mipi_dsi_device *link; const struct panel_desc *desc; - struct backlight_device *backlight; struct regulator_bulk_data *supplies; struct gpio_desc *enable_gpio; @@ -72,8 +70,6 @@ static int innolux_panel_disable(struct drm_panel *panel) if (!innolux->enabled) return 0; - backlight_disable(innolux->backlight); - innolux->enabled = false; return 0; @@ -204,18 +200,10 @@ poweroff: static int innolux_panel_enable(struct drm_panel *panel) { struct innolux_panel *innolux = to_innolux_panel(panel); - int ret; if (innolux->enabled) return 0; - ret = backlight_enable(innolux->backlight); - if (ret) { - DRM_DEV_ERROR(panel->dev, - "Failed to enable backlight %d\n", ret); - return ret; - } - innolux->enabled = true; return 0; @@ -482,13 +470,13 @@ static int innolux_panel_add(struct mipi_dsi_device *dsi, innolux->enable_gpio = NULL; } - innolux->backlight = devm_of_find_backlight(dev); - if (IS_ERR(innolux->backlight)) - return PTR_ERR(innolux->backlight); - drm_panel_init(&innolux->base, dev, &innolux_panel_funcs, DRM_MODE_CONNECTOR_DSI); + err = drm_panel_of_backlight(&innolux->base); + if (err) + return err; + err = drm_panel_add(&innolux->base); if (err < 0) return err; @@ -526,12 +514,12 @@ static int innolux_panel_remove(struct mipi_dsi_device *dsi) struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi); int err; - err = innolux_panel_unprepare(&innolux->base); + err = drm_panel_unprepare(&innolux->base); if (err < 0) DRM_DEV_ERROR(&dsi->dev, "failed to unprepare panel: %d\n", err); - err = innolux_panel_disable(&innolux->base); + err = drm_panel_disable(&innolux->base); if (err < 0) DRM_DEV_ERROR(&dsi->dev, "failed to disable panel: %d\n", err); @@ -549,8 +537,8 @@ static void innolux_panel_shutdown(struct mipi_dsi_device *dsi) { struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi); - innolux_panel_unprepare(&innolux->base); - innolux_panel_disable(&innolux->base); + drm_panel_unprepare(&innolux->base); + drm_panel_disable(&innolux->base); } static struct mipi_dsi_driver innolux_panel_driver = { -- 2.7.4