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drm/panel: sharp-ls043t1le01: 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/20191207140353.23967-22-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2019-12-07 15:03:49 +01:00
parent 8bc0b56098
commit 8cc8517721
1 changed files with 7 additions and 13 deletions
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20
drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
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@ -7,7 +7,6 @@
* Based on AUO panel driver by Rob Clark <robdclark@gmail.com>
*/
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
@ -25,7 +24,6 @@ struct sharp_nt_panel {
struct drm_panel base;
struct mipi_dsi_device *dsi;
struct backlight_device *backlight;
struct regulator *supply;
struct gpio_desc *reset_gpio;
@ -107,8 +105,6 @@ static int sharp_nt_panel_disable(struct drm_panel *panel)
if (!sharp_nt->enabled)
return 0;
backlight_disable(sharp_nt->backlight);
sharp_nt->enabled = false;
return 0;
@ -190,8 +186,6 @@ static int sharp_nt_panel_enable(struct drm_panel *panel)
if (sharp_nt->enabled)
return 0;
backlight_enable(sharp_nt->backlight);
sharp_nt->enabled = true;
return 0;
@ -244,6 +238,7 @@ static const struct drm_panel_funcs sharp_nt_panel_funcs = {
static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt)
{
struct device *dev = &sharp_nt->dsi->dev;
int ret;
sharp_nt->mode = &default_mode;
@ -260,14 +255,13 @@ static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt)
gpiod_set_value(sharp_nt->reset_gpio, 0);
}
sharp_nt->backlight = devm_of_find_backlight(dev);
if (IS_ERR(sharp_nt->backlight))
return PTR_ERR(sharp_nt->backlight);
drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev,
&sharp_nt_panel_funcs, DRM_MODE_CONNECTOR_DSI);
ret = drm_panel_of_backlight(&sharp_nt->base);
if (ret)
return ret;
return drm_panel_add(&sharp_nt->base);
}
@ -309,7 +303,7 @@ static int sharp_nt_panel_remove(struct mipi_dsi_device *dsi)
struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);
int ret;
ret = sharp_nt_panel_disable(&sharp_nt->base);
ret = drm_panel_disable(&sharp_nt->base);
if (ret < 0)
dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
@ -326,7 +320,7 @@ static void sharp_nt_panel_shutdown(struct mipi_dsi_device *dsi)
{
struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);
sharp_nt_panel_disable(&sharp_nt->base);
drm_panel_disable(&sharp_nt->base);
}
static const struct of_device_id sharp_nt_of_match[] = {