drivers/video/backlight/ams369fg06.c: make power_on() call optional
This patch makes power_on() call optional. The voltage source can be
provided to some boards using ams369fg06 panel, thus in this case, power
on/off sequence is not necessary.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index d29e494..c02aa2c 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -317,10 +317,7 @@
pd = lcd->lcd_pd;
bd = lcd->bd;
- if (!pd->power_on) {
- dev_err(lcd->dev, "power_on is NULL.\n");
- return -EINVAL;
- } else {
+ if (pd->power_on) {
pd->power_on(lcd->ld, 1);
msleep(pd->power_on_delay);
}
@@ -370,7 +367,8 @@
msleep(pd->power_off_delay);
- pd->power_on(lcd->ld, 0);
+ if (pd->power_on)
+ pd->power_on(lcd->ld, 0);
return 0;
}