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/*
* Functions to access LP873X power management chip.
*
* Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __LINUX_MFD_LP873X_H
#define __LINUX_MFD_LP873X_H
#include <linux/i2c.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
/* LP873x chip id list */
#define LP873X 0x00
/* All register addresses */
#define LP873X_REG_DEV_REV 0X00
#define LP873X_REG_OTP_REV 0X01
#define LP873X_REG_BUCK0_CTRL_1 0X02
#define LP873X_REG_BUCK0_CTRL_2 0X03
#define LP873X_REG_BUCK1_CTRL_1 0X04
#define LP873X_REG_BUCK1_CTRL_2 0X05
#define LP873X_REG_BUCK0_VOUT 0X06
#define LP873X_REG_BUCK1_VOUT 0X07
#define LP873X_REG_LDO0_CTRL 0X08
#define LP873X_REG_LDO1_CTRL 0X09
#define LP873X_REG_LDO0_VOUT 0X0A
#define LP873X_REG_LDO1_VOUT 0X0B
#define LP873X_REG_BUCK0_DELAY 0X0C
#define LP873X_REG_BUCK1_DELAY 0X0D
#define LP873X_REG_LDO0_DELAY 0X0E
#define LP873X_REG_LDO1_DELAY 0X0F
#define LP873X_REG_GPO_DELAY 0X10
#define LP873X_REG_GPO2_DELAY 0X11
#define LP873X_REG_GPO_CTRL 0X12
#define LP873X_REG_CONFIG 0X13
#define LP873X_REG_PLL_CTRL 0X14
#define LP873X_REG_PGOOD_CTRL1 0X15
#define LP873X_REG_PGOOD_CTRL2 0X16
#define LP873X_REG_PG_FAULT 0X17
#define LP873X_REG_RESET 0X18
#define LP873X_REG_INT_TOP_1 0X19
#define LP873X_REG_INT_TOP_2 0X1A
#define LP873X_REG_INT_BUCK 0X1B
#define LP873X_REG_INT_LDO 0X1C
#define LP873X_REG_TOP_STAT 0X1D
#define LP873X_REG_BUCK_STAT 0X1E
#define LP873X_REG_LDO_STAT 0x1F
#define LP873X_REG_TOP_MASK_1 0x20
#define LP873X_REG_TOP_MASK_2 0x21
#define LP873X_REG_BUCK_MASK 0x22
#define LP873X_REG_LDO_MASK 0x23
#define LP873X_REG_SEL_I_LOAD 0x24
#define LP873X_REG_I_LOAD_2 0x25
#define LP873X_REG_I_LOAD_1 0x26
#define LP873X_REG_MAX LP873X_REG_I_LOAD_1
/* Register field definitions */
#define LP873X_DEV_REV_DEV_ID 0xC0
#define LP873X_DEV_REV_ALL_LAYER 0x30
#define LP873X_DEV_REV_METAL_LAYER 0x0F
#define LP873X_OTP_REV_OTP_ID 0xFF
#define LP873X_BUCK0_CTRL_1_BUCK0_FPWM BIT(3)
#define LP873X_BUCK0_CTRL_1_BUCK0_RDIS_EN BIT(2)
#define LP873X_BUCK0_CTRL_1_BUCK0_EN_PIN_CTRL BIT(1)
#define LP873X_BUCK0_CTRL_1_BUCK0_EN BIT(0)
#define LP873X_BUCK0_CTRL_2_BUCK0_ILIM 0x38
#define LP873X_BUCK0_CTRL_2_BUCK0_SLEW_RATE 0x07
#define LP873X_BUCK1_CTRL_1_BUCK1_FPWM BIT(3)
#define LP873X_BUCK1_CTRL_1_BUCK1_RDIS_EN BIT(2)
#define LP873X_BUCK1_CTRL_1_BUCK1_EN_PIN_CTRL BIT(1)
#define LP873X_BUCK1_CTRL_1_BUCK1_EN BIT(0)
#define LP873X_BUCK1_CTRL_2_BUCK1_ILIM 0x38
#define LP873X_BUCK1_CTRL_2_BUCK1_SLEW_RATE 0x07
#define LP873X_BUCK0_VOUT_BUCK0_VSET 0xFF
#define LP873X_BUCK1_VOUT_BUCK1_VSET 0xFF
#define LP873X_LDO0_CTRL_LDO0_RDIS_EN BIT(2)
#define LP873X_LDO0_CTRL_LDO0_EN_PIN_CTRL BIT(1)
#define LP873X_LDO0_CTRL_LDO0_EN BIT(0)
#define LP873X_LDO1_CTRL_LDO1_RDIS_EN BIT(2)
#define LP873X_LDO1_CTRL_LDO1_EN_PIN_CTRL BIT(1)
#define LP873X_LDO1_CTRL_LDO1_EN BIT(0)
#define LP873X_LDO0_VOUT_LDO0_VSET 0x1F
#define LP873X_LDO1_VOUT_LDO1_VSET 0x1F
#define LP873X_BUCK0_DELAY_BUCK0_SD_DELAY 0xF0
#define LP873X_BUCK0_DELAY_BUCK0_SU_DELAY 0x0F
#define LP873X_BUCK1_DELAY_BUCK1_SD_DELAY 0xF0
#define LP873X_BUCK1_DELAY_BUCK1_SU_DELAY 0x0F
#define LP873X_LDO0_DELAY_LDO0_SD_DELAY 0xF0
#define LP873X_LDO0_DELAY_LDO0_SU_DELAY 0x0F
#define LP873X_LDO1_DELAY_LDO1_SD_DELAY 0xF0
#define LP873X_LDO1_DELAY_LDO1_SU_DELAY 0x0F
#define LP873X_GPO_DELAY_GPO_SD_DELAY 0xF0
#define LP873X_GPO_DELAY_GPO_SU_DELAY 0x0F
#define LP873X_GPO2_DELAY_GPO2_SD_DELAY 0xF0
#define LP873X_GPO2_DELAY_GPO2_SU_DELAY 0x0F
#define LP873X_GPO_CTRL_GPO2_OD BIT(6)
#define LP873X_GPO_CTRL_GPO2_EN_PIN_CTRL BIT(5)
#define LP873X_GPO_CTRL_GPO2_EN BIT(4)
#define LP873X_GPO_CTRL_GPO_OD BIT(2)
#define LP873X_GPO_CTRL_GPO_EN_PIN_CTRL BIT(1)
#define LP873X_GPO_CTRL_GPO_EN BIT(0)
#define LP873X_CONFIG_SU_DELAY_SEL BIT(6)
#define LP873X_CONFIG_SD_DELAY_SEL BIT(5)
#define LP873X_CONFIG_CLKIN_PIN_SEL BIT(4)
#define LP873X_CONFIG_CLKIN_PD BIT(3)
#define LP873X_CONFIG_EN_PD BIT(2)
#define LP873X_CONFIG_TDIE_WARN_LEVEL BIT(1)
#define LP873X_EN_SPREAD_SPEC BIT(0)
#define LP873X_PLL_CTRL_EN_PLL BIT(6)
#define LP873X_EXT_CLK_FREQ 0x1F
#define LP873X_PGOOD_CTRL1_PGOOD_POL BIT(7)
#define LP873X_PGOOD_CTRL1_PGOOD_OD BIT(6)
#define LP873X_PGOOD_CTRL1_PGOOD_WINDOW_LDO BIT(5)
#define LP873X_PGOOD_CTRL1_PGOOD_WINDOWN_BUCK BIT(4)
#define LP873X_PGOOD_CTRL1_PGOOD_EN_PGOOD_LDO1 BIT(3)
#define LP873X_PGOOD_CTRL1_PGOOD_EN_PGOOD_LDO0 BIT(2)
#define LP873X_PGOOD_CTRL1_PGOOD_EN_PGOOD_BUCK1 BIT(1)
#define LP873X_PGOOD_CTRL1_PGOOD_EN_PGOOD_BUCK0 BIT(0)
#define LP873X_PGOOD_CTRL2_EN_PGOOD_TWARN BIT(2)
#define LP873X_PGOOD_CTRL2_EN_PG_FAULT_GATE BIT(1)
#define LP873X_PGOOD_CTRL2_PGOOD_MODE BIT(0)
#define LP873X_PG_FAULT_PG_FAULT_LDO1 BIT(3)
#define LP873X_PG_FAULT_PG_FAULT_LDO0 BIT(2)
#define LP873X_PG_FAULT_PG_FAULT_BUCK1 BIT(1)
#define LP873X_PG_FAULT_PG_FAULT_BUCK0 BIT(0)
#define LP873X_RESET_SW_RESET BIT(0)
#define LP873X_INT_TOP_1_PGOOD_INT BIT(7)
#define LP873X_INT_TOP_1_LDO_INT BIT(6)
#define LP873X_INT_TOP_1_BUCK_INT BIT(5)
#define LP873X_INT_TOP_1_SYNC_CLK_INT BIT(4)
#define LP873X_INT_TOP_1_TDIE_SD_INT BIT(3)
#define LP873X_INT_TOP_1_TDIE_WARN_INT BIT(2)
#define LP873X_INT_TOP_1_OVP_INT BIT(1)
#define LP873X_INT_TOP_1_I_MEAS_INT BIT(0)
#define LP873X_INT_TOP_2_RESET_REG_INT BIT(0)
#define LP873X_INT_BUCK_BUCK1_PG_INT BIT(6)
#define LP873X_INT_BUCK_BUCK1_SC_INT BIT(5)
#define LP873X_INT_BUCK_BUCK1_ILIM_INT BIT(4)
#define LP873X_INT_BUCK_BUCK0_PG_INT BIT(2)
#define LP873X_INT_BUCK_BUCK0_SC_INT BIT(1)
#define LP873X_INT_BUCK_BUCK0_ILIM_INT BIT(0)
#define LP873X_INT_LDO_LDO1_PG_INT BIT(6)
#define LP873X_INT_LDO_LDO1_SC_INT BIT(5)
#define LP873X_INT_LDO_LDO1_ILIM_INT BIT(4)
#define LP873X_INT_LDO_LDO0_PG_INT BIT(2)
#define LP873X_INT_LDO_LDO0_SC_INT BIT(1)
#define LP873X_INT_LDO_LDO0_ILIM_INT BIT(0)
#define LP873X_TOP_STAT_PGOOD_STAT BIT(7)
#define LP873X_TOP_STAT_SYNC_CLK_STAT BIT(4)
#define LP873X_TOP_STAT_TDIE_SD_STAT BIT(3)
#define LP873X_TOP_STAT_TDIE_WARN_STAT BIT(2)
#define LP873X_TOP_STAT_OVP_STAT BIT(1)
#define LP873X_BUCK_STAT_BUCK1_STAT BIT(7)
#define LP873X_BUCK_STAT_BUCK1_PG_STAT BIT(6)
#define LP873X_BUCK_STAT_BUCK1_ILIM_STAT BIT(4)
#define LP873X_BUCK_STAT_BUCK0_STAT BIT(3)
#define LP873X_BUCK_STAT_BUCK0_PG_STAT BIT(2)
#define LP873X_BUCK_STAT_BUCK0_ILIM_STAT BIT(0)
#define LP873X_LDO_STAT_LDO1_STAT BIT(7)
#define LP873X_LDO_STAT_LDO1_PG_STAT BIT(6)
#define LP873X_LDO_STAT_LDO1_ILIM_STAT BIT(4)
#define LP873X_LDO_STAT_LDO0_STAT BIT(3)
#define LP873X_LDO_STAT_LDO0_PG_STAT BIT(2)
#define LP873X_LDO_STAT_LDO0_ILIM_STAT BIT(0)
#define LP873X_TOP_MASK_1_PGOOD_INT_MASK BIT(7)
#define LP873X_TOP_MASK_1_SYNC_CLK_MASK BIT(4)
#define LP873X_TOP_MASK_1_TDIE_WARN_MASK BIT(2)
#define LP873X_TOP_MASK_1_I_MEAS_MASK BIT(0)
#define LP873X_TOP_MASK_2_RESET_REG_MASK BIT(0)
#define LP873X_BUCK_MASK_BUCK1_PGF_MASK BIT(7)
#define LP873X_BUCK_MASK_BUCK1_PGR_MASK BIT(6)
#define LP873X_BUCK_MASK_BUCK1_ILIM_MASK BIT(4)
#define LP873X_BUCK_MASK_BUCK0_PGF_MASK BIT(3)
#define LP873X_BUCK_MASK_BUCK0_PGR_MASK BIT(2)
#define LP873X_BUCK_MASK_BUCK0_ILIM_MASK BIT(0)
#define LP873X_LDO_MASK_LDO1_PGF_MASK BIT(7)
#define LP873X_LDO_MASK_LDO1_PGR_MASK BIT(6)
#define LP873X_LDO_MASK_LDO1_ILIM_MASK BIT(4)
#define LP873X_LDO_MASK_LDO0_PGF_MASK BIT(3)
#define LP873X_LDO_MASK_LDO0_PGR_MASK BIT(2)
#define LP873X_LDO_MASK_LDO0_ILIM_MASK BIT(0)
#define LP873X_SEL_I_LOAD_CURRENT_BUCK_SELECT BIT(0)
#define LP873X_I_LOAD_2_BUCK_LOAD_CURRENT BIT(0)
#define LP873X_I_LOAD_1_BUCK_LOAD_CURRENT 0xFF
#define LP873X_MAX_REG_ID LP873X_LDO_1
/* Number of step-down converters available */
#define LP873X_NUM_BUCK 2
/* Number of LDO voltage regulators available */
#define LP873X_NUM_LDO 2
/* Number of total regulators available */
#define LP873X_NUM_REGULATOR (LP873X_NUM_BUCK + LP873X_NUM_LDO)
enum lp873x_regulator_id {
/* BUCK's */
LP873X_BUCK_0,
LP873X_BUCK_1,
/* LDOs */
LP873X_LDO_0,
LP873X_LDO_1,
};
/**
* struct lp873x - state holder for the lp873x driver
* @dev: struct device pointer for MFD device
* @rev: revision of the lp873x
* @lock: lock guarding the data structure
* @regmap: register map of the lp873x PMIC
*
* Device data may be used to access the LP873X chip
*/
struct lp873x {
struct device *dev;
u8 rev;
struct mutex lock; /* lock guarding the data structure */
struct regmap *regmap;
};
#endif /* __LINUX_MFD_LP873X_H */
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