backlight: kb3886_bl: convert kb3886bl 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/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 6c5ed6b..bca6ccc 100644 (file)
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -106,29 +106,28 @@ static int kb3886bl_send_intensity(struct backlight_device *bd)
        return 0;
 }
 
-#ifdef CONFIG_PM
-static int kb3886bl_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int kb3886bl_suspend(struct device *dev)
 {
-       struct backlight_device *bd = platform_get_drvdata(pdev);
+       struct backlight_device *bd = dev_get_drvdata(dev);
 
        kb3886bl_flags |= KB3886BL_SUSPENDED;
        backlight_update_status(bd);
        return 0;
 }
 
-static int kb3886bl_resume(struct platform_device *pdev)
+static int kb3886bl_resume(struct device *dev)
 {
-       struct backlight_device *bd = platform_get_drvdata(pdev);
+       struct backlight_device *bd = dev_get_drvdata(dev);
 
        kb3886bl_flags &= ~KB3886BL_SUSPENDED;
        backlight_update_status(bd);
        return 0;
 }
-#else
-#define kb3886bl_suspend       NULL
-#define kb3886bl_resume                NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(kb3886bl_pm_ops, kb3886bl_suspend, kb3886bl_resume);
+
 static int kb3886bl_get_intensity(struct backlight_device *bd)
 {
        return kb3886bl_intensity;
@@ -179,10 +178,9 @@ static int kb3886bl_remove(struct platform_device *pdev)
 static struct platform_driver kb3886bl_driver = {
        .probe          = kb3886bl_probe,
        .remove         = kb3886bl_remove,
-       .suspend        = kb3886bl_suspend,
-       .resume         = kb3886bl_resume,
        .driver         = {
                .name   = "kb3886-bl",
+               .pm     = &kb3886bl_pm_ops,
        },
 };