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usr
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src
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linux-headers-6.8.0-36
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include
/
linux
/
mfd
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drwxr-xr-x
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lp8788.h
/* SPDX-License-Identifier: GPL-2.0-only */ /* * TI LP8788 MFD Device * * Copyright 2012 Texas Instruments * * Author: Milo(Woogyom) Kim <milo.kim@ti.com> */ #ifndef __MFD_LP8788_H__ #define __MFD_LP8788_H__ #include <linux/gpio.h> #include <linux/irqdomain.h> #include <linux/pwm.h> #include <linux/regmap.h> #define LP8788_DEV_BUCK "lp8788-buck" #define LP8788_DEV_DLDO "lp8788-dldo" #define LP8788_DEV_ALDO "lp8788-aldo" #define LP8788_DEV_CHARGER "lp8788-charger" #define LP8788_DEV_RTC "lp8788-rtc" #define LP8788_DEV_BACKLIGHT "lp8788-backlight" #define LP8788_DEV_VIBRATOR "lp8788-vibrator" #define LP8788_DEV_KEYLED "lp8788-keyled" #define LP8788_DEV_ADC "lp8788-adc" #define LP8788_NUM_BUCKS 4 #define LP8788_NUM_DLDOS 12 #define LP8788_NUM_ALDOS 10 #define LP8788_NUM_BUCK2_DVS 2 #define LP8788_CHG_IRQ "CHG_IRQ" #define LP8788_PRSW_IRQ "PRSW_IRQ" #define LP8788_BATT_IRQ "BATT_IRQ" #define LP8788_ALM_IRQ "ALARM_IRQ" enum lp8788_int_id { /* interrup register 1 : Addr 00h */ LP8788_INT_TSDL, LP8788_INT_TSDH, LP8788_INT_UVLO, LP8788_INT_FLAGMON, LP8788_INT_PWRON_TIME, LP8788_INT_PWRON, LP8788_INT_COMP1, LP8788_INT_COMP2, /* interrupt register 2 : Addr 01h */ LP8788_INT_CHG_INPUT_STATE, LP8788_INT_CHG_STATE, LP8788_INT_EOC, LP8788_INT_CHG_RESTART, LP8788_INT_RESTART_TIMEOUT, LP8788_INT_FULLCHG_TIMEOUT, LP8788_INT_PRECHG_TIMEOUT, /* interrupt register 3 : Addr 02h */ LP8788_INT_RTC_ALARM1 = 17, LP8788_INT_RTC_ALARM2, LP8788_INT_ENTER_SYS_SUPPORT, LP8788_INT_EXIT_SYS_SUPPORT, LP8788_INT_BATT_LOW, LP8788_INT_NO_BATT, LP8788_INT_MAX = 24, }; enum lp8788_dvs_sel { DVS_SEL_V0, DVS_SEL_V1, DVS_SEL_V2, DVS_SEL_V3, }; enum lp8788_ext_ldo_en_id { EN_ALDO1, EN_ALDO234, EN_ALDO5, EN_ALDO7, EN_DLDO7, EN_DLDO911, EN_LDOS_MAX, }; enum lp8788_charger_event { NO_CHARGER, CHARGER_DETECTED, }; enum lp8788_bl_ctrl_mode { LP8788_BL_REGISTER_ONLY, LP8788_BL_COMB_PWM_BASED, /* PWM + I2C, changed by PWM input */ LP8788_BL_COMB_REGISTER_BASED, /* PWM + I2C, changed by I2C */ }; enum lp8788_bl_dim_mode { LP8788_DIM_EXPONENTIAL, LP8788_DIM_LINEAR, }; enum lp8788_bl_full_scale_current { LP8788_FULLSCALE_5000uA, LP8788_FULLSCALE_8500uA, LP8788_FULLSCALE_1200uA, LP8788_FULLSCALE_1550uA, LP8788_FULLSCALE_1900uA, LP8788_FULLSCALE_2250uA, LP8788_FULLSCALE_2600uA, LP8788_FULLSCALE_2950uA, }; enum lp8788_bl_ramp_step { LP8788_RAMP_8us, LP8788_RAMP_1024us, LP8788_RAMP_2048us, LP8788_RAMP_4096us, LP8788_RAMP_8192us, LP8788_RAMP_16384us, LP8788_RAMP_32768us, LP8788_RAMP_65538us, }; enum lp8788_isink_scale { LP8788_ISINK_SCALE_100mA, LP8788_ISINK_SCALE_120mA, }; enum lp8788_isink_number { LP8788_ISINK_1, LP8788_ISINK_2, LP8788_ISINK_3, }; enum lp8788_alarm_sel { LP8788_ALARM_1, LP8788_ALARM_2, LP8788_ALARM_MAX, }; enum lp8788_adc_id { LPADC_VBATT_5P5, LPADC_VIN_CHG, LPADC_IBATT, LPADC_IC_TEMP, LPADC_VBATT_6P0, LPADC_VBATT_5P0, LPADC_ADC1, LPADC_ADC2, LPADC_VDD, LPADC_VCOIN, LPADC_VDD_LDO, LPADC_ADC3, LPADC_ADC4, LPADC_MAX, }; struct lp8788; /* * lp8788_buck1_dvs * @gpio : gpio pin number for dvs control * @vsel : dvs selector for buck v1 register */ struct lp8788_buck1_dvs { int gpio; enum lp8788_dvs_sel vsel; }; /* * lp8788_buck2_dvs * @gpio : two gpio pin numbers are used for dvs * @vsel : dvs selector for buck v2 register */ struct lp8788_buck2_dvs { int gpio[LP8788_NUM_BUCK2_DVS]; enum lp8788_dvs_sel vsel; }; /* * struct lp8788_chg_param * @addr : charging control register address (range : 0x11 ~ 0x1C) * @val : charging parameter value */ struct lp8788_chg_param { u8 addr; u8 val; }; /* * struct lp8788_charger_platform_data * @adc_vbatt : adc channel name for battery voltage * @adc_batt_temp : adc channel name for battery temperature * @max_vbatt_mv : used for calculating battery capacity * @chg_params : initial charging parameters * @num_chg_params : numbers of charging parameters * @charger_event : the charger event can be reported to the platform side */ struct lp8788_charger_platform_data { const char *adc_vbatt; const char *adc_batt_temp; unsigned int max_vbatt_mv; struct lp8788_chg_param *chg_params; int num_chg_params; void (*charger_event) (struct lp8788 *lp, enum lp8788_charger_event event); }; /* * struct lp8788_backlight_platform_data * @name : backlight driver name. (default: "lcd-backlight") * @initial_brightness : initial value of backlight brightness * @bl_mode : brightness control by pwm or lp8788 register * @dim_mode : dimming mode selection * @full_scale : full scale current setting * @rise_time : brightness ramp up step time * @fall_time : brightness ramp down step time * @pwm_pol : pwm polarity setting when bl_mode is pwm based * @period_ns : platform specific pwm period value. unit is nano. Only valid when bl_mode is LP8788_BL_COMB_PWM_BASED */ struct lp8788_backlight_platform_data { char *name; int initial_brightness; enum lp8788_bl_ctrl_mode bl_mode; enum lp8788_bl_dim_mode dim_mode; enum lp8788_bl_full_scale_current full_scale; enum lp8788_bl_ramp_step rise_time; enum lp8788_bl_ramp_step fall_time; enum pwm_polarity pwm_pol; unsigned int period_ns; }; /* * struct lp8788_led_platform_data * @name : led driver name. (default: "keyboard-backlight") * @scale : current scale * @num : current sink number * @iout_code : current output value (Addr 9Ah ~ 9Bh) */ struct lp8788_led_platform_data { char *name; enum lp8788_isink_scale scale; enum lp8788_isink_number num; int iout_code; }; /* * struct lp8788_vib_platform_data * @name : vibrator driver name * @scale : current scale * @num : current sink number * @iout_code : current output value (Addr 9Ah ~ 9Bh) * @pwm_code : PWM code value (Addr 9Ch ~ 9Eh) */ struct lp8788_vib_platform_data { char *name; enum lp8788_isink_scale scale; enum lp8788_isink_number num; int iout_code; int pwm_code; }; /* * struct lp8788_platform_data * @init_func : used for initializing registers * before mfd driver is registered * @buck_data : regulator initial data for buck * @dldo_data : regulator initial data for digital ldo * @aldo_data : regulator initial data for analog ldo * @buck1_dvs : gpio configurations for buck1 dvs * @buck2_dvs : gpio configurations for buck2 dvs * @chg_pdata : platform data for charger driver * @alarm_sel : rtc alarm selection (1 or 2) * @bl_pdata : configurable data for backlight driver * @led_pdata : configurable data for led driver * @vib_pdata : configurable data for vibrator driver * @adc_pdata : iio map data for adc driver */ struct lp8788_platform_data { /* general system information */ int (*init_func) (struct lp8788 *lp); /* regulators */ struct regulator_init_data *buck_data[LP8788_NUM_BUCKS]; struct regulator_init_data *dldo_data[LP8788_NUM_DLDOS]; struct regulator_init_data *aldo_data[LP8788_NUM_ALDOS]; struct lp8788_buck1_dvs *buck1_dvs; struct lp8788_buck2_dvs *buck2_dvs; /* charger */ struct lp8788_charger_platform_data *chg_pdata; /* rtc alarm */ enum lp8788_alarm_sel alarm_sel; /* backlight */ struct lp8788_backlight_platform_data *bl_pdata; /* current sinks */ struct lp8788_led_platform_data *led_pdata; struct lp8788_vib_platform_data *vib_pdata; /* adc iio map data */ struct iio_map *adc_pdata; }; /* * struct lp8788 * @dev : parent device pointer * @regmap : used for i2c communcation on accessing registers * @irqdm : interrupt domain for handling nested interrupt * @irq : pin number of IRQ_N * @pdata : lp8788 platform specific data */ struct lp8788 { struct device *dev; struct regmap *regmap; struct irq_domain *irqdm; int irq; struct lp8788_platform_data *pdata; }; int lp8788_irq_init(struct lp8788 *lp, int chip_irq); void lp8788_irq_exit(struct lp8788 *lp); int lp8788_read_byte(struct lp8788 *lp, u8 reg, u8 *data); int lp8788_read_multi_bytes(struct lp8788 *lp, u8 reg, u8 *data, size_t count); int lp8788_write_byte(struct lp8788 *lp, u8 reg, u8 data); int lp8788_update_bits(struct lp8788 *lp, u8 reg, u8 mask, u8 data); #endif
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