// SPDX-License-Identifier: GPL-2.0-only /* * lp5523.c - LP5523, LP55231 LED Driver * * Copyright (C) 2010 Nokia Corporation * Copyright (C) 2012 Texas Instruments * * Contact: Samu Onkalo <[email protected]> * Milo(Woogyom) Kim <[email protected]> */ #include <linux/cleanup.h> #include <linux/delay.h> #include <linux/firmware.h> #include <linux/i2c.h> #include <linux/leds.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/platform_data/leds-lp55xx.h> #include <linux/slab.h> #include "leds-lp55xx-common.h" /* Memory is used like this: * 0x00 engine 1 program * 0x10 engine 2 program * 0x20 engine 3 program * 0x30 engine 1 muxing info * 0x40 engine 2 muxing info * 0x50 engine 3 muxing info */ #define LP5523_PAGES_PER_ENGINE … #define LP5523_MAX_LEDS … /* Registers */ #define LP5523_REG_ENABLE … #define LP5523_REG_OP_MODE … #define LP5523_REG_ENABLE_LEDS_MSB … #define LP5523_REG_ENABLE_LEDS_LSB … #define LP5523_REG_LED_CTRL_BASE … #define LP5523_REG_LED_PWM_BASE … #define LP5523_REG_LED_CURRENT_BASE … #define LP5523_REG_CONFIG … #define LP5523_REG_STATUS … #define LP5523_ENGINE_BUSY … #define LP5523_REG_RESET … #define LP5523_REG_LED_TEST_CTRL … #define LP5523_REG_LED_TEST_ADC … #define LP5523_REG_MASTER_FADER_BASE … #define LP5523_REG_CH1_PROG_START … #define LP5523_REG_CH2_PROG_START … #define LP5523_REG_CH3_PROG_START … #define LP5523_REG_PROG_PAGE_SEL … #define LP5523_REG_PROG_MEM … /* Bit description in registers */ #define LP5523_ENABLE … #define LP5523_AUTO_INC … #define LP5523_PWR_SAVE … #define LP5523_PWM_PWR_SAVE … #define LP5523_CP_MODE_MASK … #define LP5523_CP_MODE_SHIFT … #define LP5523_AUTO_CLK … #define LP5523_DEFAULT_CONFIG … #define LP5523_EN_LEDTEST … #define LP5523_LEDTEST_DONE … #define LP5523_RESET … #define LP5523_ADC_SHORTCIRC_LIM … #define LP5523_EXT_CLK_USED … #define LP5523_ENG_STATUS_MASK … static int lp5523_init_program_engine(struct lp55xx_chip *chip); static int lp5523_post_init_device(struct lp55xx_chip *chip) { … } static void lp5523_run_engine(struct lp55xx_chip *chip, bool start) { … } static int lp5523_init_program_engine(struct lp55xx_chip *chip) { … } static ssize_t lp5523_selftest(struct device *dev, struct device_attribute *attr, char *buf) { … } LP55XX_DEV_ATTR_ENGINE_MODE(…); LP55XX_DEV_ATTR_ENGINE_MODE(…); LP55XX_DEV_ATTR_ENGINE_MODE(…); LP55XX_DEV_ATTR_ENGINE_LEDS(…); LP55XX_DEV_ATTR_ENGINE_LEDS(…); LP55XX_DEV_ATTR_ENGINE_LEDS(…); LP55XX_DEV_ATTR_ENGINE_LOAD(…); LP55XX_DEV_ATTR_ENGINE_LOAD(…); LP55XX_DEV_ATTR_ENGINE_LOAD(…); static LP55XX_DEV_ATTR_RO(selftest, lp5523_selftest); LP55XX_DEV_ATTR_MASTER_FADER(…); LP55XX_DEV_ATTR_MASTER_FADER(…); LP55XX_DEV_ATTR_MASTER_FADER(…); static LP55XX_DEV_ATTR_RW(master_fader_leds, lp55xx_show_master_fader_leds, lp55xx_store_master_fader_leds); static struct attribute *lp5523_attributes[] = …; static const struct attribute_group lp5523_group = …; /* Chip specific configurations */ static struct lp55xx_device_config lp5523_cfg = …; static const struct i2c_device_id lp5523_id[] = …; MODULE_DEVICE_TABLE(i2c, lp5523_id); static const struct of_device_id of_lp5523_leds_match[] = …; MODULE_DEVICE_TABLE(of, of_lp5523_leds_match); static struct i2c_driver lp5523_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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