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leds: core: add OF variants of LED registering functions

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These new functions allow passing an additional device_node argument
that will be internally set for created LED device. Thanks to this LED
core code and triggers will be able to access DT node for reading extra
info.

The easiest solution for achieving this was reworking old functions to
more generic ones & adding simple defines for API compatibility.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
This commit is contained in:
Rafał Miłecki
2017-03-06 06:19:44 +01:00
committed by Jacek Anaszewski
parent ab76838611
commit 442c609830
2 changed files with 26 additions and 14 deletions
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14
include/linux/leds.h
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@@ -122,10 +122,16 @@ struct led_classdev {
struct mutex led_access;
};
extern int led_classdev_register(struct device *parent,
struct led_classdev *led_cdev);
extern int devm_led_classdev_register(struct device *parent,
struct led_classdev *led_cdev);
extern int of_led_classdev_register(struct device *parent,
struct device_node *np,
struct led_classdev *led_cdev);
#define led_classdev_register(parent, led_cdev) \
of_led_classdev_register(parent, NULL, led_cdev)
extern int devm_of_led_classdev_register(struct device *parent,
struct device_node *np,
struct led_classdev *led_cdev);
#define devm_led_classdev_register(parent, led_cdev) \
devm_of_led_classdev_register(parent, NULL, led_cdev)
extern void led_classdev_unregister(struct led_classdev *led_cdev);
extern void devm_led_classdev_unregister(struct device *parent,
struct led_classdev *led_cdev);