linux-imx

​

/*

 * Regulator driver for DA9063 PMIC series

 *

 * Copyright 2012 Dialog Semiconductors Ltd.

 * Copyright 2013 Philipp Zabel, Pengutronix

 *

 * Author: Krystian Garbaciak <krystian.garbaciak@diasemi.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;  either version 2 of the  License, or (at your

 *  option) any later version.

 *

 */

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/err.h>

#include <linux/slab.h>

#include <linux/of.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>

#include <linux/mfd/da9063/core.h>

#include <linux/mfd/da9063/pdata.h>

#include <linux/mfd/da9063/registers.h>

​

​

/* Definition for registering regmap bit fields using a mask */

#define BFIELD(_reg, _mask) \

    REG_FIELD(_reg, __builtin_ffs((int)_mask) - 1, \

        sizeof(unsigned int) * 8 - __builtin_clz((_mask)) - 1)

​

/* Regulator capabilities and registers description */

struct da9063_regulator_info {

    struct regulator_desc desc;

​

    /* Current limiting */

    unsigned    n_current_limits;

    const int   *current_limits;

​

    /* DA9063 main register fields */

    struct reg_field mode;      /* buck mode of operation */

    struct reg_field suspend;

    struct reg_field sleep;

    struct reg_field suspend_sleep;

    unsigned int suspend_vsel_reg;

    struct reg_field ilimit;

​

    /* DA9063 event detection bit */

    struct reg_field oc_event;

};

​

/* Macros for LDO */

#define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \

    .desc.id = chip##_ID_##regl_name, \

    .desc.name = __stringify(chip##_##regl_name), \

    .desc.ops = &da9063_ldo_ops, \

    .desc.min_uV = (min_mV) * 1000, \

    .desc.uV_step = (step_mV) * 1000, \