linux-imx

/*

 * Regulator driver for LP87565 PMIC

 *

 * Copyright (C) 2017 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. 

 */

​

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>

​

#include <linux/mfd/lp87565.h>

​

#define LP87565_REGULATOR(_name, _id, _of, _ops, _n, _vr, _vm, _er, _em, \

             _delay, _lr, _cr)              \

    [_id] = {                           \

        .desc = {                       \

            .name           = _name,        \

            .supply_name        = _of "-in",        \

            .id         = _id,          \

            .of_match       = of_match_ptr(_of),    \

            .regulators_node    = of_match_ptr("regulators"),\

            .ops            = &_ops,        \

            .n_voltages     = _n,           \

            .type           = REGULATOR_VOLTAGE,    \

            .owner          = THIS_MODULE,      \

            .vsel_reg       = _vr,          \

            .vsel_mask      = _vm,          \

            .enable_reg     = _er,          \

            .enable_mask        = _em,          \

            .ramp_delay     = _delay,       \

            .linear_ranges      = _lr,          \

            .n_linear_ranges    = ARRAY_SIZE(_lr),  \

        },                          \

        .ctrl2_reg = _cr,                   \

    }

​

struct lp87565_regulator {

    struct regulator_desc desc;

    unsigned int ctrl2_reg;

};

​

static const struct lp87565_regulator regulators[];

​

static const struct regulator_linear_range buck0_1_2_3_ranges[] = {

    REGULATOR_LINEAR_RANGE(600000, 0xA, 0x17, 10000),

    REGULATOR_LINEAR_RANGE(735000, 0x18, 0x9d, 5000),

    REGULATOR_LINEAR_RANGE(1420000, 0x9e, 0xff, 20000),

};

​

static const unsigned int lp87565_buck_ramp_delay[] = {

    30000, 15000, 10000, 7500, 3800, 1900, 940, 470

};

​

/* LP87565 BUCK current limit */

static const unsigned int lp87565_buck_uA[] = {

    1500000, 2000000, 2500000, 3000000, 3500000, 4000000, 4500000, 5000000,

};

​

static int lp87565_buck_set_ramp_delay(struct regulator_dev *rdev,