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backlight: ltv350qv: convert ltv350qv to dev_pm_ops 

Instead of using legacy suspend/resume methods, using newer dev_pm_ops
structure allows better control over power management.

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 2013-04-29 16:17:46 -07:00 committed by Linus Torvalds
parent 5a3778e2f5
commit a71ed77b3a
1 changed files with 8 additions and 10 deletions
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18
drivers/video/backlight/ltv350qv.c
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@ -271,25 +271,24 @@ static int ltv350qv_remove(struct spi_device *spi)
return 0;
}
#ifdef CONFIG_PM
static int ltv350qv_suspend(struct spi_device *spi, pm_message_t state)
#ifdef CONFIG_PM_SLEEP
static int ltv350qv_suspend(struct device *dev)
{
struct ltv350qv *lcd = spi_get_drvdata(spi);
struct ltv350qv *lcd = dev_get_drvdata(dev);
return ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
}
static int ltv350qv_resume(struct spi_device *spi)
static int ltv350qv_resume(struct device *dev)
{
struct ltv350qv *lcd = spi_get_drvdata(spi);
struct ltv350qv *lcd = dev_get_drvdata(dev);
return ltv350qv_power(lcd, FB_BLANK_UNBLANK);
}
#else
#define ltv350qv_suspend NULL
#define ltv350qv_resume NULL
#endif
static SIMPLE_DEV_PM_OPS(ltv350qv_pm_ops, ltv350qv_suspend, ltv350qv_resume);
/* Power down all displays on reboot, poweroff or halt */
static void ltv350qv_shutdown(struct spi_device *spi)
{
@ -302,13 +301,12 @@ static struct spi_driver ltv350qv_driver = {
.driver = {
.name = "ltv350qv",
.owner = THIS_MODULE,
.pm = &ltv350qv_pm_ops,
},
.probe = ltv350qv_probe,
.remove = ltv350qv_remove,
.shutdown = ltv350qv_shutdown,
.suspend = ltv350qv_suspend,
.resume = ltv350qv_resume,
};
module_spi_driver(ltv350qv_driver);