diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2013-02-21 16:43:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 17:22:22 -0800 |
| commit | b6bef463f5e42e959c46773806693c3277179bc4 (patch) | |
| tree | 0652a06f93b26c94f380c1413ca2fbccb01ee235 /drivers | |
| parent | 81c650e3accca9ca20232e96058aa759ceae06a5 (diff) | |
| download | linux-b6bef463f5e42e959c46773806693c3277179bc4.tar.bz2 | |
backlight: s6e63m0: remove redundant variable 'before_power'
'before_power' was used to check the previous status when resume() is
called. However, FB_BLANK_POWERDOWN was used in suspend() all the time,
so there is no need to check the previous status. Also, redundant return
variables are removed to reduce the code.
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/backlight/s6e63m0.c | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c index 87831bba7a89..92e53e20b2ea 100644 --- a/drivers/video/backlight/s6e63m0.c +++ b/drivers/video/backlight/s6e63m0.c @@ -827,44 +827,26 @@ static int s6e63m0_remove(struct spi_device *spi) } #if defined(CONFIG_PM) -static unsigned int before_power; - static int s6e63m0_suspend(struct spi_device *spi, pm_message_t mesg) { - int ret = 0; struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev); dev_dbg(&spi->dev, "lcd->power = %d\n", lcd->power); - before_power = lcd->power; - /* * when lcd panel is suspend, lcd panel becomes off * regardless of status. */ - ret = s6e63m0_power(lcd, FB_BLANK_POWERDOWN); - - return ret; + return s6e63m0_power(lcd, FB_BLANK_POWERDOWN); } static int s6e63m0_resume(struct spi_device *spi) { - int ret = 0; struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev); - /* - * after suspended, if lcd panel status is FB_BLANK_UNBLANK - * (at that time, before_power is FB_BLANK_UNBLANK) then - * it changes that status to FB_BLANK_POWERDOWN to get lcd on. - */ - if (before_power == FB_BLANK_UNBLANK) - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = FB_BLANK_POWERDOWN; - dev_dbg(&spi->dev, "before_power = %d\n", before_power); - - ret = s6e63m0_power(lcd, before_power); - - return ret; + return s6e63m0_power(lcd, FB_BLANK_UNBLANK); } #else #define s6e63m0_suspend NULL |