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backlight: ep93xx: convert ep93xx 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 16:17:42 -07:00 committed by Linus Torvalds
parent bb07471057
commit d7696aad5d
1 changed files with 8 additions and 10 deletions
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18
drivers/video/backlight/ep93xx_bl.c
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@ -115,35 +115,33 @@ static int ep93xxbl_remove(struct platform_device *dev)
return 0; return 0;
} }
#ifdef CONFIG_PM #ifdef CONFIG_PM_SLEEP
static int ep93xxbl_suspend(struct platform_device *dev, pm_message_t state) static int ep93xxbl_suspend(struct device *dev)
{ {
struct backlight_device *bl = platform_get_drvdata(dev); struct backlight_device *bl = dev_get_drvdata(dev);
return ep93xxbl_set(bl, 0); return ep93xxbl_set(bl, 0);
} }
static int ep93xxbl_resume(struct platform_device *dev) static int ep93xxbl_resume(struct device *dev)
{ {
struct backlight_device *bl = platform_get_drvdata(dev); struct backlight_device *bl = dev_get_drvdata(dev);
backlight_update_status(bl); backlight_update_status(bl);
return 0; return 0;
} }
#else
#define ep93xxbl_suspend NULL
#define ep93xxbl_resume NULL
#endif #endif
static SIMPLE_DEV_PM_OPS(ep93xxbl_pm_ops, ep93xxbl_suspend, ep93xxbl_resume);
static struct platform_driver ep93xxbl_driver = { static struct platform_driver ep93xxbl_driver = {
.driver = { .driver = {
.name = "ep93xx-bl", .name = "ep93xx-bl",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.pm = &ep93xxbl_pm_ops,
}, },
.probe = ep93xxbl_probe, .probe = ep93xxbl_probe,
.remove = ep93xxbl_remove, .remove = ep93xxbl_remove,
.suspend = ep93xxbl_suspend,
.resume = ep93xxbl_resume,
}; };
module_platform_driver(ep93xxbl_driver); module_platform_driver(ep93xxbl_driver);