leds: Futher document blink_set

Futher document blink_set function pointer

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

diff --git a/include/linux/leds.h b/include/linux/leds.h
index 62af62915cf750a561e5231b0cb04b9a25f72e5d..d8bf9665e70cc09b40d781a82c638e1b95dd82af 100644 (file)
--- 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);