leds: Add backlight LED trigger
This allows LEDs to be controlled as a backlight device where
they turn off and on when the display is blanked and unblanked.
This is useful where you need various key backlight LEDs to
dim at the same time as the backlight.
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 14bb57b..2a72ce5 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -200,6 +200,15 @@
load average.
If unsure, say Y.
+config LEDS_TRIGGER_BACKLIGHT
+ tristate "LED backlight Trigger"
+ depends on LEDS_TRIGGERS
+ help
+ This allows LEDs to be controlled as a backlight device: they
+ turn off and on when the display is blanked and unblanked.
+
+ If unsure, say N.
+
config LEDS_TRIGGER_DEFAULT_ON
tristate "LED Default ON Trigger"
depends on LEDS_TRIGGERS