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Subject[PATCH 08/14] backlight: ep93xx: convert ep93xx to dev_pm_ops
Date
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>
---
drivers/video/backlight/ep93xx_bl.c | 18 ++++++++----------
1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
index ef3e21e..734b7fe 100644
--- a/drivers/video/backlight/ep93xx_bl.c
+++ b/drivers/video/backlight/ep93xx_bl.c
@@ -115,35 +115,33 @@ static int ep93xxbl_remove(struct platform_device *dev)
return 0;
}

-#ifdef CONFIG_PM
-static int ep93xxbl_suspend(struct platform_device *dev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+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);
}

-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);
return 0;
}
-#else
-#define ep93xxbl_suspend NULL
-#define ep93xxbl_resume NULL
#endif

+static SIMPLE_DEV_PM_OPS(ep93xxbl_pm_ops, ep93xxbl_suspend, ep93xxbl_resume);
+
static struct platform_driver ep93xxbl_driver = {
.driver = {
.name = "ep93xx-bl",
.owner = THIS_MODULE,
+ .pm = &ep93xxbl_pm_ops,
},
.probe = ep93xxbl_probe,
.remove = ep93xxbl_remove,
- .suspend = ep93xxbl_suspend,
- .resume = ep93xxbl_resume,
};

module_platform_driver(ep93xxbl_driver);
--
1.7.2.5



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