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