lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

leds: allow led-drivers to use a variable range of brightness values

Browse Source 
This patch allows drivers to override the default maximum brightness value
of 255.  We take care to preserve backwards-compatibility as much as
possible, so that user-space ABI doesn't change for existing drivers.
LED trigger code has also been updated to use the per-LED maximum.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Guennadi Liakhovetski
2009-01-10 18:54:39 +00:00
committed by Richard Purdie
parent a7d878af94
commit 1bd465e6b0
7 changed files with 29 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/leds/ledtrig-heartbeat.c
View File

@@ -47,7 +47,7 @@ static void led_heartbeat_function(unsigned long data)
msecs_to_jiffies(heartbeat_data->period);
delay = msecs_to_jiffies(70);
heartbeat_data->phase++;
brightness = LED_FULL;
brightness = led_cdev->max_brightness;
break;
case 1:
delay = heartbeat_data->period / 4 - msecs_to_jiffies(70);
@@ -56,7 +56,7 @@ static void led_heartbeat_function(unsigned long data)
case 2:
delay = msecs_to_jiffies(70);
heartbeat_data->phase++;
brightness = LED_FULL;
brightness = led_cdev->max_brightness;
break;
default:
delay = heartbeat_data->period - heartbeat_data->period / 4 -