backlight: adp5520: convert adp5520_bl 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>

1 files changed, 10 insertions, 11 deletions

diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index a1e41d4faa71..962d120f6d0d 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -349,35 +349,34 @@ static int adp5520_bl_remove(struct platform_device *pdev)
         return 0;
 }
 
-#ifdef CONFIG_PM
-static int adp5520_bl_suspend(struct platform_device *pdev,
-                                 pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int adp5520_bl_suspend(struct device *dev)
 {
-        struct backlight_device *bl = platform_get_drvdata(pdev);
+        struct backlight_device *bl = dev_get_drvdata(dev);
+
         return adp5520_bl_set(bl, 0);
 }
 
-static int adp5520_bl_resume(struct platform_device *pdev)
+static int adp5520_bl_resume(struct device *dev)
 {
-        struct backlight_device *bl = platform_get_drvdata(pdev);
+        struct backlight_device *bl = dev_get_drvdata(dev);
 
         backlight_update_status(bl);
         return 0;
 }
-#else
-#define adp5520_bl_suspend      NULL
-#define adp5520_bl_resume       NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(adp5520_bl_pm_ops, adp5520_bl_suspend,
+                        adp5520_bl_resume);
+
 static struct platform_driver adp5520_bl_driver = {
         .driver         = {
                 .name   = "adp5520-backlight",
                 .owner  = THIS_MODULE,
+                .pm     = &adp5520_bl_pm_ops,
         },
         .probe          = adp5520_bl_probe,
         .remove         = adp5520_bl_remove,
-        .suspend        = adp5520_bl_suspend,
-        .resume         = adp5520_bl_resume,
 };
 
 module_platform_driver(adp5520_bl_driver);