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authorJingoo Han <jg1.han@samsung.com>2013-04-29 16:17:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 18:28:17 -0700
commita71ed77b3ac5bb6ce3515fa9d0b9ad2c84919a2c (patch)
treeef941486c6cde9e71e60981a45ce4cea31518673
parent5a3778e2f57e5fb1f6e060586f5850dd87b5320f (diff)
downloadop-kernel-dev-a71ed77b3ac5bb6ce3515fa9d0b9ad2c84919a2c.zip
op-kernel-dev-a71ed77b3ac5bb6ce3515fa9d0b9ad2c84919a2c.tar.gz
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>
-rw-r--r--drivers/video/backlight/ltv350qv.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c
index c0b4b8f..ed1b392 100644
--- a/drivers/video/backlight/ltv350qv.c
+++ b/drivers/video/backlight/ltv350qv.c
@@ -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);
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