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path: root/drivers/leds/led-class.c
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Diffstat (limited to 'drivers/leds/led-class.c')
-rw-r--r--drivers/leds/led-class.c50
1 files changed, 38 insertions, 12 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 48cce18e9d6..f37d63cf726 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -29,7 +29,7 @@ static void led_update_brightness(struct led_classdev *led_cdev)
led_cdev->brightness = led_cdev->brightness_get(led_cdev);
}
-static ssize_t led_brightness_show(struct device *dev,
+static ssize_t brightness_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
@@ -40,7 +40,7 @@ static ssize_t led_brightness_show(struct device *dev,
return sprintf(buf, "%u\n", led_cdev->brightness);
}
-static ssize_t led_brightness_store(struct device *dev,
+static ssize_t brightness_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
@@ -57,6 +57,7 @@ static ssize_t led_brightness_store(struct device *dev,
return size;
}
+static DEVICE_ATTR_RW(brightness);
static ssize_t led_max_brightness_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -65,14 +66,35 @@ static ssize_t led_max_brightness_show(struct device *dev,
return sprintf(buf, "%u\n", led_cdev->max_brightness);
}
+static DEVICE_ATTR(max_brightness, 0444, led_max_brightness_show, NULL);
-static struct device_attribute led_class_attrs[] = {
- __ATTR(brightness, 0644, led_brightness_show, led_brightness_store),
- __ATTR(max_brightness, 0444, led_max_brightness_show, NULL),
#ifdef CONFIG_LEDS_TRIGGERS
- __ATTR(trigger, 0644, led_trigger_show, led_trigger_store),
+static DEVICE_ATTR(trigger, 0644, led_trigger_show, led_trigger_store);
+static struct attribute *led_trigger_attrs[] = {
+ &dev_attr_trigger.attr,
+ NULL,
+};
+static const struct attribute_group led_trigger_group = {
+ .attrs = led_trigger_attrs,
+};
#endif
- __ATTR_NULL,
+
+static struct attribute *led_class_attrs[] = {
+ &dev_attr_brightness.attr,
+ &dev_attr_max_brightness.attr,
+ NULL,
+};
+
+static const struct attribute_group led_group = {
+ .attrs = led_class_attrs,
+};
+
+static const struct attribute_group *led_groups[] = {
+ &led_group,
+#ifdef CONFIG_LEDS_TRIGGERS
+ &led_trigger_group,
+#endif
+ NULL,
};
static void led_timer_function(unsigned long data)
@@ -156,7 +178,7 @@ 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 +198,11 @@ 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.
@@ -211,7 +238,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
led_trigger_set_default(led_cdev);
#endif
- printk(KERN_DEBUG "Registered led device: %s\n",
+ dev_dbg(parent, "Registered led device: %s\n",
led_cdev->name);
return 0;
@@ -252,9 +279,8 @@ 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->dev_attrs = led_class_attrs;
+ leds_class->pm = &leds_class_dev_pm_ops;
+ leds_class->dev_groups = led_groups;
return 0;
}