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| author | Sam Ravnborg <sam@ravnborg.org> | 2019-12-07 17:03:39 +0300 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2019-12-10 00:57:26 +0300 |
| commit | 5fd14f287997274d98c518831a43e521b3c6ec75 (patch) | |
| tree | 8a73c804c4cf285dc1344ef4e0a6ab4d7d9f6197 /drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c | |
| parent | 16793e00a3c17f639e0610549e62c1116a7da1f0 (diff) | |
| download | linux-5fd14f287997274d98c518831a43e521b3c6ec75.tar.xz | |
drm/panel: kingdisplay-kd097d04: use drm_panel backlight support
Use the backlight support in drm_panel to simplify the driver
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191207140353.23967-12-sam@ravnborg.org
Diffstat (limited to 'drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c index 353ee6caa01c..bac1a2a06c92 100644 --- a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c +++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c @@ -3,7 +3,6 @@ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd */ -#include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> @@ -23,7 +22,6 @@ struct kingdisplay_panel { struct drm_panel base; struct mipi_dsi_device *link; - struct backlight_device *backlight; struct regulator *supply; struct gpio_desc *enable_gpio; @@ -191,8 +189,6 @@ static int kingdisplay_panel_disable(struct drm_panel *panel) if (!kingdisplay->enabled) return 0; - backlight_disable(kingdisplay->backlight); - err = mipi_dsi_dcs_set_display_off(kingdisplay->link); if (err < 0) DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n", @@ -303,18 +299,10 @@ poweroff: static int kingdisplay_panel_enable(struct drm_panel *panel) { struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel); - int ret; if (kingdisplay->enabled) return 0; - ret = backlight_enable(kingdisplay->backlight); - if (ret) { - DRM_DEV_ERROR(panel->dev, - "Failed to enable backlight %d\n", ret); - return ret; - } - kingdisplay->enabled = true; return 0; @@ -388,13 +376,13 @@ static int kingdisplay_panel_add(struct kingdisplay_panel *kingdisplay) kingdisplay->enable_gpio = NULL; } - kingdisplay->backlight = devm_of_find_backlight(dev); - if (IS_ERR(kingdisplay->backlight)) - return PTR_ERR(kingdisplay->backlight); - drm_panel_init(&kingdisplay->base, &kingdisplay->link->dev, &kingdisplay_panel_funcs, DRM_MODE_CONNECTOR_DSI); + err = drm_panel_of_backlight(&kingdisplay->base); + if (err) + return err; + return drm_panel_add(&kingdisplay->base); } @@ -432,12 +420,12 @@ static int kingdisplay_panel_remove(struct mipi_dsi_device *dsi) struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi); int err; - err = kingdisplay_panel_unprepare(&kingdisplay->base); + err = drm_panel_unprepare(&kingdisplay->base); if (err < 0) DRM_DEV_ERROR(&dsi->dev, "failed to unprepare panel: %d\n", err); - err = kingdisplay_panel_disable(&kingdisplay->base); + err = drm_panel_disable(&kingdisplay->base); if (err < 0) DRM_DEV_ERROR(&dsi->dev, "failed to disable panel: %d\n", err); @@ -455,8 +443,8 @@ static void kingdisplay_panel_shutdown(struct mipi_dsi_device *dsi) { struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi); - kingdisplay_panel_unprepare(&kingdisplay->base); - kingdisplay_panel_disable(&kingdisplay->base); + drm_panel_unprepare(&kingdisplay->base); + drm_panel_disable(&kingdisplay->base); } static struct mipi_dsi_driver kingdisplay_panel_driver = { |