1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Device driver for regulators in MAX5970 and MAX5978 IC
5 * Copyright (c) 2022 9elements GmbH
10 #ifndef _MFD_MAX5970_H
11 #define _MFD_MAX5970_H
13 #include <linux/regmap.h>
15 #define MAX5970_NUM_SWITCHES 2
16 #define MAX5978_NUM_SWITCHES 1
17 #define MAX5970_NUM_LEDS 4
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
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)
37 #define MAX5970_VAL2REG_H(x) (((x) >> 2) & 0xFF)
38 #define MAX5970_VAL2REG_L(x) ((x) & 0x3)
40 #define MAX5970_REG_DAC_FAST(ch) (0x2E + (ch))
42 #define MAX5970_FAST2SLOW_RATIO 200
44 #define MAX5970_REG_STATUS0 0x31
45 #define MAX5970_CB_IFAULTF(ch) (1 << (ch))
46 #define MAX5970_CB_IFAULTS(ch) (1 << ((ch) + 4))
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
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)
61 #define MAX5970_REG_STATUS3 0x34
62 #define MAX5970_STATUS3_ALERT BIT(4)
63 #define MAX5970_STATUS3_PG(ch) BIT(ch)
65 #define MAX5970_REG_FAULT0 0x35
66 #define UV_STATUS_WARN(ch) (1 << (ch))
67 #define UV_STATUS_CRIT(ch) (1 << ((ch) + 4))
69 #define MAX5970_REG_FAULT1 0x36
70 #define OV_STATUS_WARN(ch) (1 << (ch))
71 #define OV_STATUS_CRIT(ch) (1 << ((ch) + 4))
73 #define MAX5970_REG_FAULT2 0x37
74 #define OC_STATUS_WARN(ch) (1 << (ch))
76 #define MAX5970_REG_CHXEN 0x3b
77 #define CHXEN(ch) (3 << ((ch) * 2))
79 #define MAX5970_REG_LED_FLASH 0x43
81 #define MAX_REGISTERS 0x49
82 #define ADC_MASK 0x3FF
84 #endif /* _MFD_MAX5970_H */