openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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
This commit is contained in:
Sam Ravnborg 2019-12-07 15:03:52 +01:00
parent 31a59a9c04
commit 3555339f62
1 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/panel/panel-tpo-td028ttec1.c
View File

@ -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);
}