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drivers/video/backlight/ams369fg06.c: make power_on() call optional

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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>
This commit is contained in:
Jingoo Han 2013-02-27 17:02:39 -08:00 committed by Linus Torvalds
parent be987d9f80
commit f7a3c997af
1 changed files with 3 additions and 5 deletions
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8
drivers/video/backlight/ams369fg06.c
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@ -317,10 +317,7 @@ static int ams369fg06_power_on(struct ams369fg06 *lcd)
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 @@ static int ams369fg06_power_off(struct ams369fg06 *lcd)
msleep(pd->power_off_delay);
pd->power_on(lcd->ld, 0);
if (pd->power_on)
pd->power_on(lcd->ld, 0);
return 0;
}