]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/leds/led-class.c
iwlwifi-5000: add build_addsta_hcmd handler for 5000 HW
[linux-2.6-omap-h63xx.git] / drivers / leds / led-class.c
index 4a938780dfc380e187b058afcd4da96be6cdf3f8..b3c54be745568863f8eb5a271ba3e85d4f441f1f 100644 (file)
 
 static struct class *leds_class;
 
+static void led_update_brightness(struct led_classdev *led_cdev)
+{
+       if (led_cdev->brightness_get)
+               led_cdev->brightness = led_cdev->brightness_get(led_cdev);
+}
+
 static ssize_t led_brightness_show(struct device *dev, 
                struct device_attribute *attr, char *buf)
 {
@@ -31,6 +37,7 @@ static ssize_t led_brightness_show(struct device *dev,
        ssize_t ret = 0;
 
        /* no lock needed for this */
+       led_update_brightness(led_cdev);
        sprintf(buf, "%u\n", led_cdev->brightness);
        ret = strlen(buf) + 1;
 
@@ -51,6 +58,9 @@ static ssize_t led_brightness_store(struct device *dev,
 
        if (count == size) {
                ret = count;
+
+               if (state == LED_OFF)
+                       led_trigger_remove(led_cdev);
                led_set_brightness(led_cdev, state);
        }
 
@@ -95,7 +105,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
 
        led_cdev->dev = device_create(leds_class, parent, 0, "%s",
                                            led_cdev->name);
-       if (unlikely(IS_ERR(led_cdev->dev)))
+       if (IS_ERR(led_cdev->dev))
                return PTR_ERR(led_cdev->dev);
 
        dev_set_drvdata(led_cdev->dev, led_cdev);
@@ -110,6 +120,8 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
        list_add_tail(&led_cdev->node, &leds_list);
        up_write(&leds_list_lock);
 
+       led_update_brightness(led_cdev);
+
 #ifdef CONFIG_LEDS_TRIGGERS
        init_rwsem(&led_cdev->trigger_lock);
 
@@ -139,12 +151,10 @@ EXPORT_SYMBOL_GPL(led_classdev_register);
 /**
  * __led_classdev_unregister - unregisters a object of led_properties class.
  * @led_cdev: the led device to unregister
- * @suspended: indicates whether system-wide suspend or resume is in progress
  *
  * Unregisters a previously registered via led_classdev_register object.
  */
-void __led_classdev_unregister(struct led_classdev *led_cdev,
-                                     bool suspended)
+void led_classdev_unregister(struct led_classdev *led_cdev)
 {
        device_remove_file(led_cdev->dev, &dev_attr_brightness);
 #ifdef CONFIG_LEDS_TRIGGERS
@@ -155,16 +165,13 @@ void __led_classdev_unregister(struct led_classdev *led_cdev,
        up_write(&led_cdev->trigger_lock);
 #endif
 
-       if (suspended)
-               device_pm_schedule_removal(led_cdev->dev);
-       else
-               device_unregister(led_cdev->dev);
+       device_unregister(led_cdev->dev);
 
        down_write(&leds_list_lock);
        list_del(&led_cdev->node);
        up_write(&leds_list_lock);
 }
-EXPORT_SYMBOL_GPL(__led_classdev_unregister);
+EXPORT_SYMBOL_GPL(led_classdev_unregister);
 
 static int __init leds_init(void)
 {