/*
 * linux/mfd/tps65218.h
 *
 * Functions to access TPS65219 power management chip.
 *
 * Copyright (C) 2014 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 version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether expressed or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License version 2 for more details.
 */

#ifndef __LINUX_MFD_TPS65218_H
#define __LINUX_MFD_TPS65218_H

#include <linux/i2c.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/bitops.h>

/* TPS chip id list */
#define TPS65218                        0xF0

/* I2C ID for TPS65218 part */
#define TPS65218_I2C_ID                 0x24

/* All register addresses */
#define TPS65218_REG_CHIPID             0x00
#define TPS65218_REG_INT1               0x01
#define TPS65218_REG_INT2               0x02
#define TPS65218_REG_INT_MASK1          0x03
#define TPS65218_REG_INT_MASK2          0x04
#define TPS65218_REG_STATUS             0x05
#define TPS65218_REG_CONTROL            0x06
#define TPS65218_REG_FLAG               0x07

#define TPS65218_REG_PASSWORD           0x10
#define TPS65218_REG_ENABLE1            0x11
#define TPS65218_REG_ENABLE2            0x12
#define TPS65218_REG_CONFIG1            0x13
#define TPS65218_REG_CONFIG2            0x14
#define TPS65218_REG_CONFIG3            0x15
#define TPS65218_REG_CONTROL_DCDC1      0x16
#define TPS65218_REG_CONTROL_DCDC2      0x17
#define TPS65218_REG_CONTROL_DCDC3      0x18
#define TPS65218_REG_CONTROL_DCDC4      0x19
#define TPS65218_REG_CONTRL_SLEW_RATE   0x1A
#define TPS65218_REG_CONTROL_LDO1       0x1B
#define TPS65218_REG_SEQ1               0x20
#define TPS65218_REG_SEQ2               0x21
#define TPS65218_REG_SEQ3               0x22
#define TPS65218_REG_SEQ4               0x23
#define TPS65218_REG_SEQ5               0x24
#define TPS65218_REG_SEQ6               0x25
#define TPS65218_REG_SEQ7               0x26

/* Register field definitions */
#define TPS65218_CHIPID_CHIP_MASK       0xF8
#define TPS65218_CHIPID_REV_MASK        0x07

#define TPS65218_REV_1_0                0x0
#define TPS65218_REV_1_1                0x1
#define TPS65218_REV_2_0                0x2
#define TPS65218_REV_2_1                0x3

#define TPS65218_INT1_VPRG              BIT(5)
#define TPS65218_INT1_AC                BIT(4)
#define TPS65218_INT1_PB                BIT(3)
#define TPS65218_INT1_HOT               BIT(2)
#define TPS65218_INT1_CC_AQC            BIT(1)
#define TPS65218_INT1_PRGC              BIT(0)

#define TPS65218_INT2_LS3_F             BIT(5)
#define TPS65218_INT2_LS2_F             BIT(4)
#define TPS65218_INT2_LS1_F             BIT(3)
#define TPS65218_INT2_LS3_I             BIT(2)
#define TPS65218_INT2_LS2_I             BIT(1)
#define TPS65218_INT2_LS1_I             BIT(0)

#define TPS65218_INT_MASK1_VPRG         BIT(5)
#define TPS65218_INT_MASK1_AC           BIT(4)
#define TPS65218_INT_MASK1_PB           BIT(3)
#define TPS65218_INT_MASK1_HOT          BIT(2)
#define TPS65218_INT_MASK1_CC_AQC       BIT(1)
#define TPS65218_INT_MASK1_PRGC         BIT(0)

#define TPS65218_INT_MASK2_LS3_F        BIT(5)
#define TPS65218_INT_MASK2_LS2_F        BIT(4)
#define TPS65218_INT_MASK2_LS1_F        BIT(3)
#define TPS65218_INT_MASK2_LS3_I        BIT(2)
#define TPS65218_INT_MASK2_LS2_I        BIT(1)
#define TPS65218_INT_MASK2_LS1_I        BIT(0)

#define TPS65218_STATUS_FSEAL           BIT(7)
#define TPS65218_STATUS_EE              BIT(6)
#define TPS65218_STATUS_AC_STATE        BIT(5)
#define TPS65218_STATUS_PB_STATE        BIT(4)
#define TPS65218_STATUS_STATE_MASK      0xC
#define TPS65218_STATUS_CC_STAT         0x3

#define TPS65218_CONTROL_OFFNPFO        BIT(1)
#define TPS65218_CONTROL_CC_AQ  BIT(0)

#define TPS65218_FLAG_GPO3_FLG          BIT(7)
#define TPS65218_FLAG_GPO2_FLG          BIT(6)
#define TPS65218_FLAG_GPO1_FLG          BIT(5)
#define TPS65218_FLAG_LDO1_FLG          BIT(4)
#define TPS65218_FLAG_DC4_FLG           BIT(3)
#define TPS65218_FLAG_DC3_FLG           BIT(2)
#define TPS65218_FLAG_DC2_FLG           BIT(1)
#define TPS65218_FLAG_DC1_FLG           BIT(0)

#define TPS65218_ENABLE1_DC6_EN         BIT(5)
#define TPS65218_ENABLE1_DC5_EN         BIT(4)
#define TPS65218_ENABLE1_DC4_EN         BIT(3)
#define TPS65218_ENABLE1_DC3_EN         BIT(2)
#define TPS65218_ENABLE1_DC2_EN         BIT(1)
#define TPS65218_ENABLE1_DC1_EN         BIT(0)

#define TPS65218_ENABLE2_GPIO3          BIT(6)
#define TPS65218_ENABLE2_GPIO2          BIT(5)
#define TPS65218_ENABLE2_GPIO1          BIT(4)
#define TPS65218_ENABLE2_LS3_EN         BIT(3)
#define TPS65218_ENABLE2_LS2_EN         BIT(2)
#define TPS65218_ENABLE2_LS1_EN         BIT(1)
#define TPS65218_ENABLE2_LDO1_EN        BIT(0)


#define TPS65218_CONFIG1_TRST           BIT(7)
#define TPS65218_CONFIG1_GPO2_BUF       BIT(6)
#define TPS65218_CONFIG1_IO1_SEL        BIT(5)
#define TPS65218_CONFIG1_PGDLY_MASK     0x18
#define TPS65218_CONFIG1_STRICT         BIT(2)
#define TPS65218_CONFIG1_UVLO_MASK      0x3

#define TPS65218_CONFIG2_DC12_RST       BIT(7)
#define TPS65218_CONFIG2_UVLOHYS        BIT(6)
#define TPS65218_CONFIG2_LS3ILIM_MASK   0xC
#define TPS65218_CONFIG2_LS2ILIM_MASK   0x3

#define TPS65218_CONFIG3_LS3NPFO        BIT(5)
#define TPS65218_CONFIG3_LS2NPFO        BIT(4)
#define TPS65218_CONFIG3_LS1NPFO        BIT(3)
#define TPS65218_CONFIG3_LS3DCHRG       BIT(2)
#define TPS65218_CONFIG3_LS2DCHRG       BIT(1)
#define TPS65218_CONFIG3_LS1DCHRG       BIT(0)

#define TPS65218_CONTROL_DCDC1_PFM      BIT(7)
#define TPS65218_CONTROL_DCDC1_MASK     0x7F

#define TPS65218_CONTROL_DCDC2_PFM      BIT(7)
#define TPS65218_CONTROL_DCDC2_MASK     0x3F

#define TPS65218_CONTROL_DCDC3_PFM      BIT(7)
#define TPS65218_CONTROL_DCDC3_MASK     0x3F

#define TPS65218_CONTROL_DCDC4_PFM      BIT(7)
#define TPS65218_CONTROL_DCDC4_MASK     0x3F

#define TPS65218_SLEW_RATE_GO           BIT(7)
#define TPS65218_SLEW_RATE_GODSBL       BIT(6)
#define TPS65218_SLEW_RATE_SLEW_MASK    0x7

#define TPS65218_CONTROL_LDO1_MASK      0x3F

#define TPS65218_SEQ1_DLY8              BIT(7)
#define TPS65218_SEQ1_DLY7              BIT(6)
#define TPS65218_SEQ1_DLY6              BIT(5)
#define TPS65218_SEQ1_DLY5              BIT(4)
#define TPS65218_SEQ1_DLY4              BIT(3)
#define TPS65218_SEQ1_DLY3              BIT(2)
#define TPS65218_SEQ1_DLY2              BIT(1)
#define TPS65218_SEQ1_DLY1              BIT(0)

#define TPS65218_SEQ2_DLYFCTR           BIT(7)
#define TPS65218_SEQ2_DLY9              BIT(0)

#define TPS65218_SEQ3_DC2_SEQ_MASK      0xF0
#define TPS65218_SEQ3_DC1_SEQ_MASK      0xF

#define TPS65218_SEQ4_DC4_SEQ_MASK      0xF0
#define TPS65218_SEQ4_DC3_SEQ_MASK      0xF

#define TPS65218_SEQ5_DC6_SEQ_MASK      0xF0
#define TPS65218_SEQ5_DC5_SEQ_MASK      0xF

#define TPS65218_SEQ6_LS1_SEQ_MASK      0xF0
#define TPS65218_SEQ6_LDO1_SEQ_MASK     0xF

#define TPS65218_SEQ7_GPO3_SEQ_MASK     0xF0
#define TPS65218_SEQ7_GPO1_SEQ_MASK     0xF
#define TPS65218_PROTECT_NONE           0
#define TPS65218_PROTECT_L1             1

enum tps65218_regulator_id {
        /* DCDC's */
        TPS65218_DCDC_1,
        TPS65218_DCDC_2,
        TPS65218_DCDC_3,
        TPS65218_DCDC_4,
        TPS65218_DCDC_5,
        TPS65218_DCDC_6,
        /* LS's */
        TPS65218_LS_3,
        /* LDOs */
        TPS65218_LDO_1,
};

#define TPS65218_MAX_REG_ID             TPS65218_LDO_1

/* Number of step-down converters available */
#define TPS65218_NUM_DCDC               6
/* Number of LDO voltage regulators available */
#define TPS65218_NUM_LDO                1
/* Number of total LS current regulators available */
#define TPS65218_NUM_LS                 1
/* Number of total regulators available */
#define TPS65218_NUM_REGULATOR          (TPS65218_NUM_DCDC + TPS65218_NUM_LDO \
                                         + TPS65218_NUM_LS)

/* Define the TPS65218 IRQ numbers */
enum tps65218_irqs {
        /* INT1 registers */
        TPS65218_PRGC_IRQ,
        TPS65218_CC_AQC_IRQ,
        TPS65218_HOT_IRQ,
        TPS65218_PB_IRQ,
        TPS65218_AC_IRQ,
        TPS65218_VPRG_IRQ,
        TPS65218_INVALID1_IRQ,
        TPS65218_INVALID2_IRQ,
        /* INT2 registers */
        TPS65218_LS1_I_IRQ,
        TPS65218_LS2_I_IRQ,
        TPS65218_LS3_I_IRQ,
        TPS65218_LS1_F_IRQ,
        TPS65218_LS2_F_IRQ,
        TPS65218_LS3_F_IRQ,
        TPS65218_INVALID3_IRQ,
        TPS65218_INVALID4_IRQ,
};

/**
 * struct tps_info - packages regulator constraints
 * @id:                 Id of the regulator
 * @name:               Voltage regulator name
 * @min_uV:             minimum micro volts
 * @max_uV:             minimum micro volts
 * @strobe:             sequencing strobe value for the regulator
 *
 * This data is used to check the regualtor voltage limits while setting.
 */
struct tps_info {
        int id;
        const char *name;
        int min_uV;
        int max_uV;
        int strobe;
};

/**
 * struct tps65218 - tps65218 sub-driver chip access routines
 *
 * Device data may be used to access the TPS65218 chip
 */

struct tps65218 {
        struct device *dev;
        unsigned int id;
        u8 rev;

        struct mutex tps_lock;          /* lock guarding the data structure */
        /* IRQ Data */
        int irq;
        u32 irq_mask;
        struct regmap_irq_chip_data *irq_data;
        struct regulator_desc desc[TPS65218_NUM_REGULATOR];
        struct tps_info *info[TPS65218_NUM_REGULATOR];
        struct regmap *regmap;
        u8 *strobes;
};

int tps65218_reg_write(struct tps65218 *tps, unsigned int reg,
                        unsigned int val, unsigned int level);
int tps65218_set_bits(struct tps65218 *tps, unsigned int reg,
                unsigned int mask, unsigned int val, unsigned int level);
int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg,
                unsigned int mask, unsigned int level);

#endif /*  __LINUX_MFD_TPS65218_H */