uboot-phytec

// SPDX-License-Identifier: GPL-2.0+

/*

 * (C) Copyright 2016

 * Texas Instruments Incorporated, <www.ti.com>

 *

 * Keerthy <j-keerthy@ti.com>

 */

​

#include <common.h>

#include <fdtdec.h>

#include <errno.h>

#include <dm.h>

#include <i2c.h>

#include <power/pmic.h>

#include <power/regulator.h>

#include <power/lp873x.h>

​

static const char lp873x_buck_ctrl[LP873X_BUCK_NUM] = {0x2, 0x4};

static const char lp873x_buck_volt[LP873X_BUCK_NUM] = {0x6, 0x7};

static const char lp873x_ldo_ctrl[LP873X_LDO_NUM] = {0x8, 0x9};

static const char lp873x_ldo_volt[LP873X_LDO_NUM] = {0xA, 0xB};

​

static int lp873x_buck_enable(struct udevice *dev, int op, bool *enable)

{

    int ret;

    unsigned int adr;

    struct dm_regulator_uclass_platdata *uc_pdata;

​

    uc_pdata = dev_get_uclass_platdata(dev);

    adr = uc_pdata->ctrl_reg;

​

    ret = pmic_reg_read(dev->parent, adr);

    if (ret < 0)

        return ret;

​

    if (op == PMIC_OP_GET) {

        ret &= LP873X_BUCK_MODE_MASK;

​

        if (ret)

            *enable = true;

        else

            *enable = false;

​

        return 0;

    } else if (op == PMIC_OP_SET) {

        if (*enable)

            ret |= LP873X_BUCK_MODE_MASK;

        else

            ret &= ~(LP873X_BUCK_MODE_MASK);

        ret = pmic_reg_write(dev->parent, adr, ret);

        if (ret)

            return ret;

    }

​

    return 0;

}

​

static int lp873x_buck_volt2hex(int uV)

{

    if (uV > LP873X_BUCK_VOLT_MAX)

        return -EINVAL;

    else if (uV > 1400000)

        return (uV - 1420000) / 20000 + 0x9E;