* Copyright (C) 2019, Paul Cercueil <paul@crapouillou.net>
*/
-#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gpio/consumer.h>
const struct nt39016_panel_info *panel_info;
struct gpio_desc *reset_gpio;
-
- struct backlight_device *backlight;
};
static inline struct nt39016 *to_nt39016(struct drm_panel *panel)
return ret;
}
- if (panel->backlight) {
+ if (drm_panel->backlight) {
/* Wait for the picture to be ready before enabling backlight */
msleep(150);
-
- ret = backlight_enable(panel->backlight);
}
- return ret;
+ return 0;
}
static int nt39016_disable(struct drm_panel *drm_panel)
struct nt39016 *panel = to_nt39016(drm_panel);
int err;
- backlight_disable(panel->backlight);
-
err = regmap_write(panel->map, NT39016_REG_SYSTEM,
NT39016_SYSTEM_RESET_N);
if (err) {
return PTR_ERR(panel->map);
}
- panel->backlight = devm_of_find_backlight(dev);
- if (IS_ERR(panel->backlight)) {
- err = PTR_ERR(panel->backlight);
+ err = drm_panel_of_backlight(&panel->drm_panel);
+ if (err) {
if (err != -EPROBE_DEFER)
dev_err(dev, "Failed to get backlight handle");
return err;