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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 <patrick.rudolph@9elements.com>
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 */