linux-imx

/*

 * tps6507x-regulator.c

 *

 * Regulator driver for TPS65073 PMIC

 *

 * Copyright (C) 2009 Texas Instrument 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.

 */

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/err.h>

#include <linux/platform_device.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/tps6507x.h>

#include <linux/of.h>

#include <linux/slab.h>

#include <linux/mfd/tps6507x.h>

#include <linux/regulator/of_regulator.h>

​

/* DCDC's */

#define TPS6507X_DCDC_1             0

#define TPS6507X_DCDC_2             1

#define TPS6507X_DCDC_3             2

/* LDOs */

#define TPS6507X_LDO_1              3

#define TPS6507X_LDO_2              4

​

#define TPS6507X_MAX_REG_ID         TPS6507X_LDO_2

​

/* Number of step-down converters available */

#define TPS6507X_NUM_DCDC           3

/* Number of LDO voltage regulators  available */

#define TPS6507X_NUM_LDO            2

/* Number of total regulators available */

#define TPS6507X_NUM_REGULATOR      (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)

​

/* Supported voltage values for regulators (in microVolts) */

static const unsigned int VDCDCx_VSEL_table[] = {

    725000, 750000, 775000, 800000,

    825000, 850000, 875000, 900000,

    925000, 950000, 975000, 1000000,

    1025000, 1050000, 1075000, 1100000,

    1125000, 1150000, 1175000, 1200000,

    1225000, 1250000, 1275000, 1300000,

    1325000, 1350000, 1375000, 1400000,

    1425000, 1450000, 1475000, 1500000,

    1550000, 1600000, 1650000, 1700000,

    1750000, 1800000, 1850000, 1900000,

    1950000, 2000000, 2050000, 2100000,

    2150000, 2200000, 2250000, 2300000,

    2350000, 2400000, 2450000, 2500000,

    2550000, 2600000, 2650000, 2700000,

    2750000, 2800000, 2850000, 2900000,

    3000000, 3100000, 3200000, 3300000,

};

​

static const unsigned int LDO1_VSEL_table[] = {

    1000000, 1100000, 1200000, 1250000,

    1300000, 1350000, 1400000, 1500000,

    1600000, 1800000, 2500000, 2750000,

    2800000, 3000000, 3100000, 3300000,

};

​

/* The voltage mapping table for LDO2 is the same as VDCDCx */

#define LDO2_VSEL_table VDCDCx_VSEL_table

​

struct tps_info {

    const char *name;

    u8 table_len;

    const unsigned int *table;

​

    /* Does DCDC high or the low register defines output voltage? */

    bool defdcdc_default;

};

​

static struct tps_info tps6507x_pmic_regs[] = {

    {

        .name = "VDCDC1",

        .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),

        .table = VDCDCx_VSEL_table,

    },