backlight: ams369fg06: 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>
diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index 22756dd..4794a9a 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -545,44 +545,26 @@
}
#if defined(CONFIG_PM)
-static unsigned int before_power;
-
static int ams369fg06_suspend(struct spi_device *spi, pm_message_t mesg)
{
- int ret = 0;
struct ams369fg06 *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 = ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
-
- return ret;
+ return ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
}
static int ams369fg06_resume(struct spi_device *spi)
{
- int ret = 0;
struct ams369fg06 *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 = ams369fg06_power(lcd, before_power);
-
- return ret;
+ return ams369fg06_power(lcd, FB_BLANK_UNBLANK);
}
#else
#define ams369fg06_suspend NULL