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drm/panel: ronbo-rb070d30: use drm_panel backlight support

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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/20191207140353.23967-19-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2019-12-07 15:03:46 +01:00
parent 83d4ed8634
commit d2895af5dc
1 changed files with 3 additions and 16 deletions
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19
drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
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@ -7,7 +7,6 @@
* This file based on panel-ilitek-ili9881c.c
*/
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
@ -29,7 +28,6 @@
struct rb070d30_panel {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct backlight_device *backlight;
struct regulator *supply;
struct {
@ -84,22 +82,13 @@ static int rb070d30_panel_enable(struct drm_panel *panel)
if (ret)
return ret;
ret = backlight_enable(ctx->backlight);
if (ret)
goto out;
return 0;
out:
mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
return ret;
}
static int rb070d30_panel_disable(struct drm_panel *panel)
{
struct rb070d30_panel *ctx = panel_to_rb070d30_panel(panel);
backlight_disable(ctx->backlight);
return mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
}
@ -208,11 +197,9 @@ static int rb070d30_panel_dsi_probe(struct mipi_dsi_device *dsi)
return PTR_ERR(ctx->gpios.shlr);
}
ctx->backlight = devm_of_find_backlight(&dsi->dev);
if (IS_ERR(ctx->backlight)) {
DRM_DEV_ERROR(&dsi->dev, "Couldn't get our backlight\n");
return PTR_ERR(ctx->backlight);
}
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)
return ret;
ret = drm_panel_add(&ctx->panel);
if (ret < 0)