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Subject[PATCH 10/36] leds: convert class code to use dev_groups
Date
The dev_attrs field of struct class is going away soon, dev_groups
should be used instead. This converts the led class code to use the
correct field.

Cc: Bryan Wu <cooloney@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

Bryan and Richard, feel free to take this through your tree, or ACK it and I
can take it through mine.

drivers/leds/led-class.c | 38 ++++++++++++++++++++++++++++++--------
1 file changed, 30 insertions(+), 8 deletions(-)

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 4336e37a..f37d63cf 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
+
+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
- __ATTR_NULL,
+ NULL,
};

static void led_timer_function(unsigned long data)
@@ -258,7 +280,7 @@ static int __init leds_init(void)
if (IS_ERR(leds_class))
return PTR_ERR(leds_class);
leds_class->pm = &leds_class_dev_pm_ops;
- leds_class->dev_attrs = led_class_attrs;
+ leds_class->dev_groups = led_groups;
return 0;
}

--
1.8.3.rc0.20.gb99dd2e


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