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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Device driver for regulators in MAX5970 and MAX5978 IC
*
* Copyright (c) 2022 9elements GmbH
*
* Author: Patrick Rudolph <patrick.rudolph@9elements.com>
*/
#ifndef _MFD_MAX5970_H
#define _MFD_MAX5970_H
#include <linux/regmap.h>
#define MAX5970_NUM_SWITCHES 2
#define MAX5978_NUM_SWITCHES 1
#define MAX5970_NUM_LEDS 4
struct max5970_data {
int num_switches;
u32 irng[MAX5970_NUM_SWITCHES];
u32 mon_rng[MAX5970_NUM_SWITCHES];
u32 shunt_micro_ohms[MAX5970_NUM_SWITCHES];
};
enum max5970_chip_type {
TYPE_MAX5978 = 1,
TYPE_MAX5970,
};
#define MAX5970_REG_CURRENT_L(ch) (0x01 + (ch) * 4)
#define MAX5970_REG_CURRENT_H(ch) (0x00 + (ch) * 4)
#define MAX5970_REG_VOLTAGE_L(ch) (0x03 + (ch) * 4)
#define MAX5970_REG_VOLTAGE_H(ch) (0x02 + (ch) * 4)
#define MAX5970_REG_MON_RANGE 0x18
#define MAX5970_MON_MASK 0x3
#define MAX5970_MON(reg, ch) (((reg) >> ((ch) * 2)) & MAX5970_MON_MASK)
#define MAX5970_MON_MAX_RANGE_UV 16000000
#define MAX5970_REG_CH_UV_WARN_H(ch) (0x1A + (ch) * 10)
#define MAX5970_REG_CH_UV_WARN_L(ch) (0x1B + (ch) * 10)
#define MAX5970_REG_CH_UV_CRIT_H(ch) (0x1C + (ch) * 10)
#define MAX5970_REG_CH_UV_CRIT_L(ch) (0x1D + (ch) * 10)
#define MAX5970_REG_CH_OV_WARN_H(ch) (0x1E + (ch) * 10)
#define MAX5970_REG_CH_OV_WARN_L(ch) (0x1F + (ch) * 10)
#define MAX5970_REG_CH_OV_CRIT_H(ch) (0x20 + (ch) * 10)
#define MAX5970_REG_CH_OV_CRIT_L(ch) (0x21 + (ch) * 10)
#define MAX5970_VAL2REG_H(x) (((x) >> 2) & 0xFF)
#define MAX5970_VAL2REG_L(x) ((x) & 0x3)
#define MAX5970_REG_DAC_FAST(ch) (0x2E + (ch))
#define MAX5970_FAST2SLOW_RATIO 200
#define MAX5970_REG_STATUS0 0x31
#define MAX5970_CB_IFAULTF(ch) (1 << (ch))
#define MAX5970_CB_IFAULTS(ch) (1 << ((ch) + 4))
#define MAX5970_REG_STATUS1 0x32
#define STATUS1_PROT_MASK 0x3
#define STATUS1_PROT(reg) \
(((reg) >> 6) & STATUS1_PROT_MASK)
#define STATUS1_PROT_SHUTDOWN 0
#define STATUS1_PROT_CLEAR_PG 1
#define STATUS1_PROT_ALERT_ONLY 2
#define MAX5970_REG_STATUS2 0x33
#define MAX5970_IRNG_MASK 0x3
#define MAX5970_IRNG(reg, ch) \
(((reg) >> ((ch) * 2)) & MAX5970_IRNG_MASK)
#define MAX5970_REG_STATUS3 0x34
#define MAX5970_STATUS3_ALERT BIT(4)
#define MAX5970_STATUS3_PG(ch) BIT(ch)
#define MAX5970_REG_FAULT0 0x35
#define UV_STATUS_WARN(ch) (1 << (ch))
#define UV_STATUS_CRIT(ch) (1 << ((ch) + 4))
#define MAX5970_REG_FAULT1 0x36
#define OV_STATUS_WARN(ch) (1 << (ch))
#define OV_STATUS_CRIT(ch) (1 << ((ch) + 4))
#define MAX5970_REG_FAULT2 0x37
#define OC_STATUS_WARN(ch) (1 << (ch))
#define MAX5970_REG_CHXEN 0x3b
#define CHXEN(ch) (3 << ((ch) * 2))
#define MAX5970_REG_LED_FLASH 0x43
#define MAX_REGISTERS 0x49
#define ADC_MASK 0x3FF
#endif /* _MFD_MAX5970_H */
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