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>

diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
index fd073b2..3345582 100644 (file)
--- 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);