return ret;
}
+/**
+ * backlight_enable - Enable backlight
+ * @bd: the backlight device to enable
+ */
+static inline int backlight_enable(struct backlight_device *bd)
+{
+ if (!bd)
+ return 0;
+
+ bd->props.power = FB_BLANK_UNBLANK;
+ bd->props.fb_blank = FB_BLANK_UNBLANK;
+ bd->props.state &= ~BL_CORE_FBBLANK;
+
+ return backlight_update_status(bd);
+}
+
+/**
+ * backlight_disable - Disable backlight
+ * @bd: the backlight device to disable
+ */
+static inline int backlight_disable(struct backlight_device *bd)
+{
+ if (!bd)
+ return 0;
+
+ bd->props.power = FB_BLANK_POWERDOWN;
+ bd->props.fb_blank = FB_BLANK_POWERDOWN;
+ bd->props.state |= BL_CORE_FBBLANK;
+
+ return backlight_update_status(bd);
+}
+
extern struct backlight_device *backlight_device_register(const char *name,
struct device *dev, void *devdata, const struct backlight_ops *ops,
const struct backlight_properties *props);