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authorKrzysztof Kozlowski <krzk@kernel.org>2019-01-09 15:44:46 +0100
committerJacek Anaszewski <jacek.anaszewski@gmail.com>2019-01-16 22:08:07 +0100
commit8e1f456129e61371fb190c71ea182a9f6e21282e (patch)
treec8bd7b1c9b5ff1301d832dd546064cd24ba4d7d6 /include/linux/leds.h
parent1dd7093742517b4aa362d22eaff8eef133d876ce (diff)
leds: Add helper for getting default pattern from Device Tree
Multiple LED triggers might need to access default pattern so add a helper for that. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'include/linux/leds.h')
-rw-r--r--include/linux/leds.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 5263f87e1d2c..78204650fe2a 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -219,6 +219,19 @@ extern int led_set_brightness_sync(struct led_classdev *led_cdev,
extern int led_update_brightness(struct led_classdev *led_cdev);
/**
+ * led_get_default_pattern - return default pattern
+ *
+ * @led_cdev: the LED to get default pattern for
+ * @size: pointer for storing the number of elements in returned array,
+ * modified only if return != NULL
+ *
+ * Return: Allocated array of integers with default pattern from device tree
+ * or NULL. Caller is responsible for kfree().
+ */
+extern u32 *led_get_default_pattern(struct led_classdev *led_cdev,
+ unsigned int *size);
+
+/**
* led_sysfs_disable - disable LED sysfs interface
* @led_cdev: the LED to set
*