path: root/drivers/regulator/pf0900-regulator.c

// SPDX-License-Identifier: GPL-2.0
// Copyright 2025 NXP.
// NXP PF0900 pmic driver

#include <linux/bitfield.h>
#include <linux/crc8.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>

enum pf0900_regulators {
	PF0900_SW1 = 0,
	PF0900_SW2,
	PF0900_SW3,
	PF0900_SW4,
	PF0900_SW5,
	PF0900_LDO1,
	PF0900_LDO2,
	PF0900_LDO3,
	PF0900_VAON,
	PF0900_REGULATOR_CNT,
};

enum {
	PF0900_DVS_LEVEL_RUN = 0,
	PF0900_DVS_LEVEL_STANDBY,
	PF0900_DVS_LEVEL_MAX,
};


#define PF0900_VAON_VOLTAGE_NUM 0x03
#define PF0900_SW_VOLTAGE_NUM   0x100
#define PF0900_LDO_VOLTAGE_NUM  0x20

#define REGU_SW_CNT             0x5
#define REGU_LDO_VAON_CNT       0x4

enum {
	PF0900_REG_DEV_ID	    = 0x00,
	PF0900_REG_DEV_FAM	    = 0x01,
	PF0900_REG_REV_ID	    = 0x02,
	PF0900_REG_PROG_ID1	    = 0x03,
	PF0900_REG_PROG_ID2	    = 0x04,
	PF0900_REG_SYSTEM_INT	    = 0x05,
	PF0900_REG_STATUS1_INT	    = 0x06,
	PF0900_REG_STATUS1_MSK      = 0x07,
	PF0900_REG_STATUS1_SNS	    = 0x08,
	PF0900_REG_STATUS2_INT      = 0x09,
	PF0900_REG_STATUS2_MSK      = 0x0A,
	PF0900_REG_STATUS2_SNS	    = 0x0B,
	PF0900_REG_STATUS3_INT      = 0x0C,
	PF0900_REG_STATUS3_MSK      = 0x0D,
	PF0900_REG_SW_MODE_INT      = 0x0E,
	PF0900_REG_SW_MODE_MSK      = 0x0F,
	PF0900_REG_SW_ILIM_INT      = 0x10,
	PF0900_REG_SW_ILIM_MSK      = 0x11,
	PF0900_REG_SW_ILIM_SNS      = 0x12,
	PF0900_REG_LDO_ILIM_INT     = 0x13,
	PF0900_REG_LDO_ILIM_MSK     = 0x14,
	PF0900_REG_LDO_ILIM_SNS     = 0x15,
	PF0900_REG_SW_UV_INT        = 0x16,
	PF0900_REG_SW_UV_MSK        = 0x17,
	PF0900_REG_SW_UV_SNS        = 0x18,
	PF0900_REG_SW_OV_INT        = 0x19,
	PF0900_REG_SW_OV_MSK        = 0x1A,
	PF0900_REG_SW_OV_SNS        = 0x1B,
	PF0900_REG_LDO_UV_INT       = 0x1C,
	PF0900_REG_LDO_UV_MSK       = 0x1D,
	PF0900_REG_LDO_UV_SNS       = 0x1E,
	PF0900_REG_LDO_OV_INT       = 0x1F,
	PF0900_REG_LDO_OV_MSK       = 0x20,
	PF0900_REG_LDO_OV_SNS       = 0x21,
	PF0900_REG_PWRON_INT        = 0x22,
	PF0900_REG_IO_INT           = 0x24,
	PF0900_REG_IO_MSK           = 0x25,
	PF0900_REG_IO_SNS           = 0x26,
	PF0900_REG_IOSHORT_SNS      = 0x27,
	PF0900_REG_ABIST_OV1        = 0x28,
	PF0900_REG_ABIST_OV2        = 0x29,
	PF0900_REG_ABIST_UV1        = 0x2A,
	PF0900_REG_ABIST_UV2        = 0x2B,
	PF0900_REG_ABIST_IO         = 0x2C,
	PF0900_REG_TEST_FLAGS       = 0x2D,
	PF0900_REG_HFAULT_FLAGS     = 0x2E,
	PF0900_REG_FAULT_FLAGS      = 0x2F,
	PF0900_REG_FS0B_CFG         = 0x30,
	PF0900_REG_FCCU_CFG         = 0x31,
	PF0900_REG_RSTB_CFG1        = 0x32,
	PF0900_REG_SYSTEM_CMD       = 0x33,
	PF0900_REG_FS0B_CMD         = 0x34,
	PF0900_REG_SECURE_WR1       = 0x35,
	PF0900_REG_SECURE_WR2       = 0x36,
	PF0900_REG_VMON_CFG1        = 0x37,
	PF0900_REG_SYS_CFG1         = 0x38,
	PF0900_REG_GPO_CFG          = 0x39,
	PF0900_REG_GPO_CTRL         = 0x3A,
	PF0900_REG_PWRUP_CFG        = 0x3B,
	PF0900_REG_RSTB_PWRUP       = 0x3C,
	PF0900_REG_GPIO1_PWRUP      = 0x3D,
	PF0900_REG_GPIO2_PWRUP      = 0x3E,
	PF0900_REG_GPIO3_PWRUP      = 0x3F,
	PF0900_REG_GPIO4_PWRUP      = 0x40,
	PF0900_REG_VMON1_PWRUP      = 0x41,
	PF0900_REG_VMON2_PWRUP      = 0x42,
	PF0900_REG_SW1_PWRUP        = 0x43,
	PF0900_REG_SW2_PWRUP        = 0x44,
	PF0900_REG_SW3_PWRUP        = 0x45,
	PF0900_REG_SW4_PWRUP        = 0x46,
	PF0900_REG_SW5_PWRUP        = 0x47,
	PF0900_REG_LDO1_PWRUP       = 0x48,
	PF0900_REG_LDO2_PWRUP       = 0x49,
	PF0900_REG_LDO3_PWRUP       = 0x4A,
	PF0900_REG_VAON_PWRUP       = 0x4B,
	PF0900_REG_FREQ_CTRL        = 0x4C,
	PF0900_REG_PWRON_CFG        = 0x4D,
	PF0900_REG_WD_CTRL1         = 0x4E,
	PF0900_REG_WD_CTRL2         = 0x4F,
	PF0900_REG_WD_CFG1          = 0x50,
	PF0900_REG_WD_CFG2          = 0x51,
	PF0900_REG_WD_CNT1          = 0x52,
	PF0900_REG_WD_CNT2          = 0x53,
	PF0900_REG_FAULT_CFG        = 0x54,
	PF0900_REG_FAULT_CNT        = 0x55,
	PF0900_REG_DFS_CNT          = 0x56,
	PF0900_REG_AMUX_CFG         = 0x57,
	PF0900_REG_VMON1_RUN_CFG    = 0x58,
	PF0900_REG_VMON1_STBY_CFG   = 0x59,
	PF0900_REG_VMON1_CTRL       = 0x5A,
	PF0900_REG_VMON2_RUN_CFG    = 0x5B,
	PF0900_REG_VMON2_STBY_CFG   = 0x5C,
	PF0900_REG_VMON2_CTRL       = 0x5D,
	PF0900_REG_SW1_VRUN         = 0x5E,
	PF0900_REG_SW1_VSTBY        = 0x5F,
	PF0900_REG_SW1_MODE         = 0x60,
	PF0900_REG_SW1_CFG1         = 0x61,
	PF0900_REG_SW1_CFG2         =