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-rw-r--r--include/linux/backlight.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 1ee9488ca2e4..79ca2da81c87 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -31,6 +31,10 @@ struct backlight_device;
31struct fb_info; 31struct fb_info;
32 32
33struct backlight_ops { 33struct backlight_ops {
34 unsigned int options;
35
36#define BL_CORE_SUSPENDRESUME (1 << 0)
37
34 /* Notify the backlight driver some property has changed */ 38 /* Notify the backlight driver some property has changed */
35 int (*update_status)(struct backlight_device *); 39 int (*update_status)(struct backlight_device *);
36 /* Return the current backlight brightness (accounting for power, 40 /* Return the current backlight brightness (accounting for power,
@@ -51,7 +55,19 @@ struct backlight_properties {
51 modes; 4: full off), see FB_BLANK_XXX */ 55 modes; 4: full off), see FB_BLANK_XXX */
52 int power; 56 int power;
53 /* FB Blanking active? (values as for power) */ 57 /* FB Blanking active? (values as for power) */
58 /* Due to be removed, please use (state & BL_CORE_FBBLANK) */
54 int fb_blank; 59 int fb_blank;
60 /* Flags used to signal drivers of state changes */
61 /* Upper 4 bits are reserved for driver internal use */
62 unsigned int state;
63
64#define BL_CORE_SUSPENDED (1 << 0) /* backlight is suspended */
65#define BL_CORE_FBBLANK (1 << 1) /* backlight is under an fb blank event */
66#define BL_CORE_DRIVER4 (1 << 28) /* reserved for driver specific use */
67#define BL_CORE_DRIVER3 (1 << 29) /* reserved for driver specific use */
68#define BL_CORE_DRIVER2 (1 << 30) /* reserved for driver specific use */
69#define BL_CORE_DRIVER1 (1 << 31) /* reserved for driver specific use */
70
55}; 71};
56 72
57struct backlight_device { 73struct backlight_device {