max5970.h

 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 */