1*0bc752c9SSamuel Holland /* 2*0bc752c9SSamuel Holland * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved. 3*0bc752c9SSamuel Holland * 4*0bc752c9SSamuel Holland * SPDX-License-Identifier: BSD-3-Clause 5*0bc752c9SSamuel Holland */ 6*0bc752c9SSamuel Holland 7*0bc752c9SSamuel Holland #ifndef AXP_H 8*0bc752c9SSamuel Holland #define AXP_H 9*0bc752c9SSamuel Holland 10*0bc752c9SSamuel Holland #include <stdint.h> 11*0bc752c9SSamuel Holland 12*0bc752c9SSamuel Holland #define NA 0xff 13*0bc752c9SSamuel Holland 14*0bc752c9SSamuel Holland enum { 15*0bc752c9SSamuel Holland AXP803_CHIP_ID = 0x41, 16f6d9c4caSSamuel Holland AXP805_CHIP_ID = 0x40, 17*0bc752c9SSamuel Holland }; 18*0bc752c9SSamuel Holland 19*0bc752c9SSamuel Holland struct axp_regulator { 20*0bc752c9SSamuel Holland const char *dt_name; 21*0bc752c9SSamuel Holland uint16_t min_volt; 22*0bc752c9SSamuel Holland uint16_t max_volt; 23*0bc752c9SSamuel Holland uint16_t step; 24*0bc752c9SSamuel Holland unsigned char split; 25*0bc752c9SSamuel Holland unsigned char volt_reg; 26*0bc752c9SSamuel Holland unsigned char switch_reg; 27*0bc752c9SSamuel Holland unsigned char switch_bit; 28*0bc752c9SSamuel Holland }; 29*0bc752c9SSamuel Holland 30*0bc752c9SSamuel Holland extern const uint8_t axp_chip_id; 31*0bc752c9SSamuel Holland extern const char *const axp_compatible; 32*0bc752c9SSamuel Holland extern const struct axp_regulator axp_regulators[]; 33*0bc752c9SSamuel Holland 34*0bc752c9SSamuel Holland /* 35*0bc752c9SSamuel Holland * Since the PMIC can be connected to multiple bus types, 36*0bc752c9SSamuel Holland * low-level read/write functions must be provided by the platform 37*0bc752c9SSamuel Holland */ 38*0bc752c9SSamuel Holland int axp_read(uint8_t reg); 39*0bc752c9SSamuel Holland int axp_write(uint8_t reg, uint8_t val); 40*0bc752c9SSamuel Holland int axp_clrsetbits(uint8_t reg, uint8_t clr_mask, uint8_t set_mask); 41*0bc752c9SSamuel Holland #define axp_clrbits(reg, clr_mask) axp_clrsetbits(reg, clr_mask, 0) 42*0bc752c9SSamuel Holland #define axp_setbits(reg, set_mask) axp_clrsetbits(reg, 0, set_mask) 43*0bc752c9SSamuel Holland 44*0bc752c9SSamuel Holland int axp_check_id(void); 45*0bc752c9SSamuel Holland void axp_power_off(void); 46*0bc752c9SSamuel Holland void axp_setup_regulators(const void *fdt); 47*0bc752c9SSamuel Holland 48*0bc752c9SSamuel Holland #endif /* AXP_H */ 49