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drm/panel: raydium-rm68200: 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/20191207140353.23967-17-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2019-12-07 15:03:44 +01:00
parent 581ee32ede
commit 924735c40e
1 changed files with 5 additions and 10 deletions
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15
drivers/gpu/drm/panel/panel-raydium-rm68200.c
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@ -6,9 +6,9 @@
* Yannick Fertre <yannick.fertre@st.com>
*/
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regulator/consumer.h>
@ -78,7 +78,6 @@ struct rm68200 {
struct drm_panel panel;
struct gpio_desc *reset_gpio;
struct regulator *supply;
struct backlight_device *backlight;
bool prepared;
bool enabled;
};
@ -242,8 +241,6 @@ static int rm68200_disable(struct drm_panel *panel)
if (!ctx->enabled)
return 0;
backlight_disable(ctx->backlight);
ctx->enabled = false;
return 0;
@ -328,8 +325,6 @@ static int rm68200_enable(struct drm_panel *panel)
if (ctx->enabled)
return 0;
backlight_enable(ctx->backlight);
ctx->enabled = true;
return 0;
@ -392,10 +387,6 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
return ret;
}
ctx->backlight = devm_of_find_backlight(dev);
if (IS_ERR(ctx->backlight))
return PTR_ERR(ctx->backlight);
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
@ -408,6 +399,10 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
drm_panel_init(&ctx->panel, dev, &rm68200_drm_funcs,
DRM_MODE_CONNECTOR_DSI);
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)
return ret;
drm_panel_add(&ctx->panel);
ret = mipi_dsi_attach(dsi);