linux-imx

/*

 * max8907-regulator.c -- support regulators in max8907

 *

 * Copyright (C) 2010 Gyungoh Yoo <jack.yoo@maxim-ic.com>

 * Copyright (C) 2010-2012, NVIDIA CORPORATION. All rights reserved.

 *

 * Portions based on drivers/regulator/tps65910-regulator.c,

 *     Copyright 2010 Texas Instruments Inc.

 *     Author: Graeme Gregory <gg@slimlogic.co.uk>

 *     Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>

 *

 * 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.

 */

​

#include <linux/err.h>

#include <linux/init.h>

#include <linux/mfd/core.h>

#include <linux/mfd/max8907.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/platform_device.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/of_regulator.h>

#include <linux/regmap.h>

#include <linux/slab.h>

​

#define MAX8907_II2RR_VERSION_MASK  0xF0

#define MAX8907_II2RR_VERSION_REV_A 0x00

#define MAX8907_II2RR_VERSION_REV_B 0x10

#define MAX8907_II2RR_VERSION_REV_C 0x30

​

struct max8907_regulator {

    struct regulator_desc desc[MAX8907_NUM_REGULATORS];

};

​

#define REG_MBATT() \

    [MAX8907_MBATT] = { \

        .name = "MBATT", \

        .supply_name = "mbatt", \

        .id = MAX8907_MBATT, \

        .ops = &max8907_mbatt_ops, \

        .type = REGULATOR_VOLTAGE, \

        .owner = THIS_MODULE, \

    }

​

#define REG_LDO(ids, supply, base, min, max, step) \

    [MAX8907_##ids] = { \

        .name = #ids, \

        .supply_name = supply, \

        .id = MAX8907_##ids, \

        .n_voltages = ((max) - (min)) / (step) + 1, \

        .ops = &max8907_ldo_ops, \

        .type = REGULATOR_VOLTAGE, \

        .owner = THIS_MODULE, \

        .min_uV = (min), \

        .uV_step = (step), \

        .vsel_reg = (base) + MAX8907_VOUT, \

        .vsel_mask = 0x3f, \

        .enable_reg = (base) + MAX8907_CTL, \

        .enable_mask = MAX8907_MASK_LDO_EN, \

    }

​

#define REG_FIXED(ids, supply, voltage) \

    [MAX8907_##ids] = { \

        .name = #ids, \

        .supply_name = supply, \

        .id = MAX8907_##ids, \

        .n_voltages = 1, \

        .ops = &max8907_fixed_ops, \

        .type = REGULATOR_VOLTAGE, \

        .owner = THIS_MODULE, \

        .min_uV = (voltage), \

    }

​

#define REG_OUT5V(ids, supply, base, voltage) \

    [MAX8907_##ids] = { \

        .name = #ids, \

        .supply_name = supply, \

        .id = MAX8907_##ids, \

        .n_voltages = 1, \

        .ops = &max8907_out5v_ops, \

        .type = REGULATOR_VOLTAGE, \

        .owner = THIS_MODULE, \

        .min_uV = (voltage), \

        .enable_reg = (base), \

        .enable_mask = MAX8907_MASK_OUT5V_EN, \

    }

​

#define REG_BBAT(ids, supply, base, min, max, step) \