1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 4a3d52e545e1..5ffc6dda4675 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -32,6 +32,13 @@ enum backlight_update_reason {
         BACKLIGHT_UPDATE_SYSFS,
 };
 
+enum backlight_type {
+        BACKLIGHT_RAW = 1,
+        BACKLIGHT_PLATFORM,
+        BACKLIGHT_FIRMWARE,
+        BACKLIGHT_TYPE_MAX,
+};
+
 struct backlight_device;
 struct fb_info;
 
@@ -62,6 +69,8 @@ struct backlight_properties {
         /* FB Blanking active? (values as for power) */
         /* Due to be removed, please use (state & BL_CORE_FBBLANK) */
         int fb_blank;
+        /* Backlight type */
+        enum backlight_type type;
         /* Flags used to signal drivers of state changes */
         /* Upper 4 bits are reserved for driver internal use */
         unsigned int state;