1/* SPDX-License-Identifier: GPL-2.0 */ 2/* LED Multicolor class interface 3 * Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/ 4 */ 5 6#ifndef _LINUX_MULTICOLOR_LEDS_H_INCLUDED 7#define _LINUX_MULTICOLOR_LEDS_H_INCLUDED 8 9#include <linux/leds.h> 10#include <dt-bindings/leds/common.h> 11 12struct mc_subled { 13 unsigned int color_index; 14 unsigned int brightness; 15 unsigned int intensity; 16 unsigned int channel; 17}; 18 19struct led_classdev_mc { 20 /* led class device */ 21 struct led_classdev led_cdev; 22 unsigned int num_colors; 23 24 struct mc_subled *subled_info; 25}; 26 27static inline struct led_classdev_mc *lcdev_to_mccdev( 28 struct led_classdev *led_cdev) 29{ 30 return container_of(led_cdev, struct led_classdev_mc, led_cdev); 31} 32 33/** 34 * led_classdev_multicolor_register_ext - register a new object of led_classdev 35 * class with support for multicolor LEDs 36 * @parent: the multicolor LED to register 37 * @mcled_cdev: the led_classdev_mc structure for this device 38 * @init_data: the LED class multicolor device initialization data 39 * 40 * Returns: 0 on success or negative error value on failure 41 */ 42int led_classdev_multicolor_register_ext(struct device *parent, 43 struct led_classdev_mc *mcled_cdev, 44 struct led_init_data *init_data); 45 46/** 47 * led_classdev_multicolor_unregister - unregisters an object of led_classdev 48 * class with support for multicolor LEDs 49 * @mcled_cdev: the multicolor LED to unregister 50 * 51 * Unregister a previously registered via led_classdev_multicolor_register 52 * object 53 */ 54void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev); 55 56/* Calculate brightness for the monochrome LED cluster */ 57int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, 58 enum led_brightness brightness); 59 60int devm_led_classdev_multicolor_register_ext(struct device *parent, 61 struct led_classdev_mc *mcled_cdev, 62 struct led_init_data *init_data); 63 64void devm_led_classdev_multicolor_unregister(struct device *parent, 65 struct led_classdev_mc *mcled_cdev); 66 67static inline int led_classdev_multicolor_register(struct device *parent, 68 struct led_classdev_mc *mcled_cdev) 69{ 70 return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL); 71} 72 73static inline int devm_led_classdev_multicolor_register(struct device *parent, 74 struct led_classdev_mc *mcled_cdev) 75{ 76 return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev, 77 NULL); 78} 79 80#endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */ 81