// SPDX-License-Identifier: GPL-2.0 // TI LM3692x LED chip family driver // Copyright (C) 2017-18 Texas Instruments Incorporated - https://www.ti.com/ #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/leds.h> #include <linux/log2.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #define LM36922_MODEL … #define LM36923_MODEL … #define LM3692X_REV … #define LM3692X_RESET … #define LM3692X_EN … #define LM3692X_BRT_CTRL … #define LM3692X_PWM_CTRL … #define LM3692X_BOOST_CTRL … #define LM3692X_AUTO_FREQ_HI … #define LM3692X_AUTO_FREQ_LO … #define LM3692X_BL_ADJ_THRESH … #define LM3692X_BRT_LSB … #define LM3692X_BRT_MSB … #define LM3692X_FAULT_CTRL … #define LM3692X_FAULT_FLAGS … #define LM3692X_SW_RESET … #define LM3692X_DEVICE_EN … #define LM3692X_LED1_EN … #define LM3692X_LED2_EN … #define LM36923_LED3_EN … #define LM3692X_ENABLE_MASK … /* Brightness Control Bits */ #define LM3692X_BL_ADJ_POL … #define LM3692X_RAMP_RATE_125us … #define LM3692X_RAMP_RATE_250us … #define LM3692X_RAMP_RATE_500us … #define LM3692X_RAMP_RATE_1ms … #define LM3692X_RAMP_RATE_2ms … #define LM3692X_RAMP_RATE_4ms … #define LM3692X_RAMP_RATE_8ms … #define LM3692X_RAMP_RATE_16ms … #define LM3692X_RAMP_EN … #define LM3692X_BRHT_MODE_REG … #define LM3692X_BRHT_MODE_PWM … #define LM3692X_BRHT_MODE_MULTI_RAMP … #define LM3692X_BRHT_MODE_RAMP_MULTI … #define LM3692X_MAP_MODE_EXP … /* PWM Register Bits */ #define LM3692X_PWM_FILTER_100 … #define LM3692X_PWM_FILTER_150 … #define LM3692X_PWM_FILTER_200 … #define LM3692X_PWM_HYSTER_1LSB … #define LM3692X_PWM_HYSTER_2LSB … #define LM3692X_PWM_HYSTER_3LSB … #define LM3692X_PWM_HYSTER_4LSB … #define LM3692X_PWM_HYSTER_5LSB … #define LM3692X_PWM_HYSTER_6LSB … #define LM3692X_PWM_POLARITY … #define LM3692X_PWM_SAMP_4MHZ … #define LM3692X_PWM_SAMP_24MHZ … /* Boost Control Bits */ #define LM3692X_OCP_PROT_1A … #define LM3692X_OCP_PROT_1_25A … #define LM3692X_OCP_PROT_1_5A … #define LM3692X_OVP_21V … #define LM3692X_OVP_25V … #define LM3692X_OVP_29V … #define LM3692X_MIN_IND_22UH … #define LM3692X_BOOST_SW_1MHZ … #define LM3692X_BOOST_SW_NO_SHIFT … /* Fault Control Bits */ #define LM3692X_FAULT_CTRL_OVP … #define LM3692X_FAULT_CTRL_OCP … #define LM3692X_FAULT_CTRL_TSD … #define LM3692X_FAULT_CTRL_OPEN … /* Fault Flag Bits */ #define LM3692X_FAULT_FLAG_OVP … #define LM3692X_FAULT_FLAG_OCP … #define LM3692X_FAULT_FLAG_TSD … #define LM3692X_FAULT_FLAG_SHRT … #define LM3692X_FAULT_FLAG_OPEN … /** * struct lm3692x_led * @lock: Lock for reading/writing the device * @client: Pointer to the I2C client * @led_dev: LED class device pointer * @regmap: Devices register map * @enable_gpio: VDDIO/EN gpio to enable communication interface * @regulator: LED supply regulator pointer * @led_enable: LED sync to be enabled * @model_id: Current device model ID enumerated */ struct lm3692x_led { … }; static const struct reg_default lm3692x_reg_defs[] = …; static const struct regmap_config lm3692x_regmap_config = …; static int lm3692x_fault_check(struct lm3692x_led *led) { … } static int lm3692x_leds_enable(struct lm3692x_led *led) { … } static int lm3692x_leds_disable(struct lm3692x_led *led) { … } static int lm3692x_brightness_set(struct led_classdev *led_cdev, enum led_brightness brt_val) { … } static enum led_brightness lm3692x_max_brightness(struct lm3692x_led *led, u32 max_cur) { … } static int lm3692x_probe_dt(struct lm3692x_led *led) { … } static int lm3692x_probe(struct i2c_client *client) { … } static void lm3692x_remove(struct i2c_client *client) { … } static const struct i2c_device_id lm3692x_id[] = …; MODULE_DEVICE_TABLE(i2c, lm3692x_id); static const struct of_device_id of_lm3692x_leds_match[] = …; MODULE_DEVICE_TABLE(of, of_lm3692x_leds_match); static struct i2c_driver lm3692x_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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