1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Device driver for regulators in MAX5970 and MAX5978 IC 4 * 5 * Copyright (c) 2022 9elements GmbH 6 * 7 * Author: Patrick Rudolph <[email protected]> 8 */ 9 10 #ifndef _MFD_MAX5970_H 11 #define _MFD_MAX5970_H 12 13 #include <linux/regmap.h> 14 15 #define MAX5970_NUM_SWITCHES 2 16 #define MAX5978_NUM_SWITCHES 1 17 #define MAX5970_NUM_LEDS 4 18 19 #define MAX5970_REG_CURRENT_L(ch) (0x01 + (ch) * 4) 20 #define MAX5970_REG_CURRENT_H(ch) (0x00 + (ch) * 4) 21 #define MAX5970_REG_VOLTAGE_L(ch) (0x03 + (ch) * 4) 22 #define MAX5970_REG_VOLTAGE_H(ch) (0x02 + (ch) * 4) 23 #define MAX5970_REG_MON_RANGE 0x18 24 #define MAX5970_MON_MASK 0x3 25 #define MAX5970_MON(reg, ch) (((reg) >> ((ch) * 2)) & MAX5970_MON_MASK) 26 #define MAX5970_MON_MAX_RANGE_UV 16000000 27 28 #define MAX5970_REG_CH_UV_WARN_H(ch) (0x1A + (ch) * 10) 29 #define MAX5970_REG_CH_UV_WARN_L(ch) (0x1B + (ch) * 10) 30 #define MAX5970_REG_CH_UV_CRIT_H(ch) (0x1C + (ch) * 10) 31 #define MAX5970_REG_CH_UV_CRIT_L(ch) (0x1D + (ch) * 10) 32 #define MAX5970_REG_CH_OV_WARN_H(ch) (0x1E + (ch) * 10) 33 #define MAX5970_REG_CH_OV_WARN_L(ch) (0x1F + (ch) * 10) 34 #define MAX5970_REG_CH_OV_CRIT_H(ch) (0x20 + (ch) * 10) 35 #define MAX5970_REG_CH_OV_CRIT_L(ch) (0x21 + (ch) * 10) 36 37 #define MAX5970_VAL2REG_H(x) (((x) >> 2) & 0xFF) 38 #define MAX5970_VAL2REG_L(x) ((x) & 0x3) 39 40 #define MAX5970_REG_DAC_FAST(ch) (0x2E + (ch)) 41 42 #define MAX5970_FAST2SLOW_RATIO 200 43 44 #define MAX5970_REG_STATUS0 0x31 45 #define MAX5970_CB_IFAULTF(ch) (1 << (ch)) 46 #define MAX5970_CB_IFAULTS(ch) (1 << ((ch) + 4)) 47 48 #define MAX5970_REG_STATUS1 0x32 49 #define STATUS1_PROT_MASK 0x3 50 #define STATUS1_PROT(reg) \ 51 (((reg) >> 6) & STATUS1_PROT_MASK) 52 #define STATUS1_PROT_SHUTDOWN 0 53 #define STATUS1_PROT_CLEAR_PG 1 54 #define STATUS1_PROT_ALERT_ONLY 2 55 56 #define MAX5970_REG_STATUS2 0x33 57 #define MAX5970_IRNG_MASK 0x3 58 #define MAX5970_IRNG(reg, ch) \ 59 (((reg) >> ((ch) * 2)) & MAX5970_IRNG_MASK) 60 61 #define MAX5970_REG_STATUS3 0x34 62 #define MAX5970_STATUS3_ALERT BIT(4) 63 #define MAX5970_STATUS3_PG(ch) BIT(ch) 64 65 #define MAX5970_REG_FAULT0 0x35 66 #define UV_STATUS_WARN(ch) (1 << (ch)) 67 #define UV_STATUS_CRIT(ch) (1 << ((ch) + 4)) 68 69 #define MAX5970_REG_FAULT1 0x36 70 #define OV_STATUS_WARN(ch) (1 << (ch)) 71 #define OV_STATUS_CRIT(ch) (1 << ((ch) + 4)) 72 73 #define MAX5970_REG_FAULT2 0x37 74 #define OC_STATUS_WARN(ch) (1 << (ch)) 75 76 #define MAX5970_REG_CHXEN 0x3b 77 #define CHXEN(ch) (3 << ((ch) * 2)) 78 79 #define MAX5970_REG_LED_FLASH 0x43 80 81 #define MAX_REGISTERS 0x49 82 #define ADC_MASK 0x3FF 83 84 #endif /* _MFD_MAX5970_H */ 85