1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* LED Multicolor class interface
3 * Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/
6 #ifndef _LINUX_MULTICOLOR_LEDS_H_INCLUDED
7 #define _LINUX_MULTICOLOR_LEDS_H_INCLUDED
9 #include <linux/leds.h>
10 #include <dt-bindings/leds/common.h>
13 unsigned int color_index;
14 unsigned int brightness;
15 unsigned int intensity;
19 struct led_classdev_mc {
20 /* led class device */
21 struct led_classdev led_cdev;
22 unsigned int num_colors;
24 struct mc_subled *subled_info;
27 static inline struct led_classdev_mc *lcdev_to_mccdev(
28 struct led_classdev *led_cdev)
30 return container_of(led_cdev, struct led_classdev_mc, led_cdev);
33 #if IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR)
35 * led_classdev_multicolor_register_ext - register a new object of led_classdev
36 * class with support for multicolor LEDs
37 * @parent: the multicolor LED to register
38 * @mcled_cdev: the led_classdev_mc structure for this device
39 * @init_data: the LED class multicolor device initialization data
41 * Returns: 0 on success or negative error value on failure
43 int led_classdev_multicolor_register_ext(struct device *parent,
44 struct led_classdev_mc *mcled_cdev,
45 struct led_init_data *init_data);
48 * led_classdev_multicolor_unregister - unregisters an object of led_classdev
49 * class with support for multicolor LEDs
50 * @mcled_cdev: the multicolor LED to unregister
52 * Unregister a previously registered via led_classdev_multicolor_register
55 void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev);
57 /* Calculate brightness for the monochrome LED cluster */
58 int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
59 enum led_brightness brightness);
61 int devm_led_classdev_multicolor_register_ext(struct device *parent,
62 struct led_classdev_mc *mcled_cdev,
63 struct led_init_data *init_data);
65 void devm_led_classdev_multicolor_unregister(struct device *parent,
66 struct led_classdev_mc *mcled_cdev);
69 static inline int led_classdev_multicolor_register_ext(struct device *parent,
70 struct led_classdev_mc *mcled_cdev,
71 struct led_init_data *init_data)
76 static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {};
77 static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
78 enum led_brightness brightness)
83 static inline int devm_led_classdev_multicolor_register_ext(struct device *parent,
84 struct led_classdev_mc *mcled_cdev,
85 struct led_init_data *init_data)
90 static inline void devm_led_classdev_multicolor_unregister(struct device *parent,
91 struct led_classdev_mc *mcled_cdev)
94 #endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */
96 static inline int led_classdev_multicolor_register(struct device *parent,
97 struct led_classdev_mc *mcled_cdev)
99 return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
102 static inline int devm_led_classdev_multicolor_register(struct device *parent,
103 struct led_classdev_mc *mcled_cdev)
105 return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev,
109 #endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */