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| author | Sam Ravnborg <sam@ravnborg.org> | 2019-12-07 15:03:52 +0100 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2019-12-09 22:57:27 +0100 |
| commit | 3555339f6227ed0be2478f2993c5da825169ace8 (patch) | |
| tree | b62dcdeb3f09ce34ed067e2cafec2aa022f9545c /drivers/gpu/drm/panel/panel-tpo-td028ttec1.c | |
| parent | 31a59a9c04f0c85a459849ae06dbd10e1208471e (diff) | |
| download | lwn-3555339f6227ed0be2478f2993c5da825169ace8.tar.gz lwn-3555339f6227ed0be2478f2993c5da825169ace8.zip | |
drm/panel: tpo-td028ttec1: 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/20191207140353.23967-25-sam@ravnborg.org
Diffstat (limited to 'drivers/gpu/drm/panel/panel-tpo-td028ttec1.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-tpo-td028ttec1.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c index 37252590b541..cf29405a2dbe 100644 --- a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c +++ b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c @@ -17,7 +17,6 @@ * H. Nikolaus Schaller <hns@goldelico.com> */ -#include <linux/backlight.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/spi/spi.h> @@ -83,7 +82,6 @@ struct td028ttec1_panel { struct drm_panel panel; struct spi_device *spi; - struct backlight_device *backlight; }; #define to_td028ttec1_device(p) container_of(p, struct td028ttec1_panel, panel) @@ -243,8 +241,6 @@ static int td028ttec1_enable(struct drm_panel *panel) if (ret) return ret; - backlight_enable(lcd->backlight); - return 0; } @@ -252,8 +248,6 @@ static int td028ttec1_disable(struct drm_panel *panel) { struct td028ttec1_panel *lcd = to_td028ttec1_device(panel); - backlight_disable(lcd->backlight); - jbt_ret_write_0(lcd, JBT_REG_DISPLAY_OFF, NULL); return 0; @@ -334,10 +328,6 @@ static int td028ttec1_probe(struct spi_device *spi) spi_set_drvdata(spi, lcd); lcd->spi = spi; - lcd->backlight = devm_of_find_backlight(&spi->dev); - if (IS_ERR(lcd->backlight)) - return PTR_ERR(lcd->backlight); - spi->mode = SPI_MODE_3; spi->bits_per_word = 9; @@ -350,6 +340,10 @@ static int td028ttec1_probe(struct spi_device *spi) drm_panel_init(&lcd->panel, &lcd->spi->dev, &td028ttec1_funcs, DRM_MODE_CONNECTOR_DPI); + ret = drm_panel_of_backlight(&lcd->panel); + if (ret) + return ret; + return drm_panel_add(&lcd->panel); } |