leds: Futher document blink_set

Futher document blink_set function pointer

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/leds.h b/include/linux/leds.h
index 62af62915cf7..d8bf9665e70c 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -47,7 +47,8 @@ struct led_classdev {
 
         /* Activate hardware accelerated blink, delays are in
          * miliseconds and if none is provided then a sensible default
-         * should be chosen. */
+         * should be chosen. The call can adjust the timings if it can't
+         * match the values specified exactly. */
         int             (*blink_set)(struct led_classdev *led_cdev,
                                      unsigned long *delay_on,
                                      unsigned long *delay_off);