leds: Add suspend/resume to the core class
Add suspend/resume to the core class and remove all the now unneeded
code from various drivers. Originally the class code couldn't support
suspend/resume but since class_device can there is no reason for
each driver doing its own suspend/resume anymore.
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 1553d93..52f82e3 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -91,6 +91,26 @@
}
EXPORT_SYMBOL_GPL(led_classdev_resume);
+static int led_suspend(struct device *dev, pm_message_t state)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+ if (led_cdev->flags & LED_CORE_SUSPENDRESUME)
+ led_classdev_suspend(led_cdev);
+
+ return 0;
+}
+
+static int led_resume(struct device *dev)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+ if (led_cdev->flags & LED_CORE_SUSPENDRESUME)
+ led_classdev_resume(led_cdev);
+
+ return 0;
+}
+
/**
* led_classdev_register - register a new object of led_classdev class.
* @parent: The device to register.
@@ -174,6 +194,8 @@
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;
return 0;
}