leds: Convert led class driver from legacy pm ops to dev_pm_ops

Convert drivers/leds/led-class to use dev_pm_ops for power management and
remove Legacy PM ops hooks. With this change, led class registers
suspend/resume callbacks via class->pm (dev_pm_ops) instead of Legacy
class->suspend/resume. When __device_suspend() runs call-backs, it will
find class->pm ops for the led class.

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index a20752f562bc..4336e37a97f4 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -156,7 +156,7 @@ void led_classdev_resume(struct led_classdev *led_cdev)
 }
 EXPORT_SYMBOL_GPL(led_classdev_resume);
 
-static int led_suspend(struct device *dev, pm_message_t state)
+static int led_suspend(struct device *dev)
 {
         struct led_classdev *led_cdev = dev_get_drvdata(dev);
 
@@ -176,6 +176,11 @@ static int led_resume(struct device *dev)
         return 0;
 }
 
+static const struct dev_pm_ops leds_class_dev_pm_ops = {
+        .suspend        = led_suspend,
+        .resume         = led_resume,
+};
+
 /**
  * led_classdev_register - register a new object of led_classdev class.
  * @parent: The device to register.
@@ -252,8 +257,7 @@ static int __init leds_init(void)
         leds_class = class_create(THIS_MODULE, "leds");
         if (IS_ERR(leds_class))
                 return PTR_ERR(leds_class);
-        leds_class->suspend = led_suspend;
-        leds_class->resume = led_resume;
+        leds_class->pm = &leds_class_dev_pm_ops;
         leds_class->dev_attrs = led_class_attrs;
         return 0;
 }