linux-imx

// SPDX-License-Identifier: GPL-2.0

// Copyright (c) 2018, The Linux Foundation. All rights reserved.

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#define pr_fmt(fmt) "%s: " fmt, __func__

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#include <linux/err.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/of_regulator.h>

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#include <soc/qcom/cmd-db.h>

#include <soc/qcom/rpmh.h>

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#include <dt-bindings/regulator/qcom,rpmh-regulator.h>

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/**

 * enum rpmh_regulator_type - supported RPMh accelerator types

 * %VRM:    RPMh VRM accelerator which supports voting on enable, voltage,

 *      and mode of LDO, SMPS, and BOB type PMIC regulators.

 * %XOB:    RPMh XOB accelerator which supports voting on the enable state

 *      of PMIC regulators.

 */

enum rpmh_regulator_type {

    VRM,

    XOB,

};

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#define RPMH_REGULATOR_REG_VRM_VOLTAGE      0x0

#define RPMH_REGULATOR_REG_ENABLE       0x4

#define RPMH_REGULATOR_REG_VRM_MODE     0x8

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#define PMIC4_LDO_MODE_RETENTION        4

#define PMIC4_LDO_MODE_LPM          5

#define PMIC4_LDO_MODE_HPM          7

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#define PMIC4_SMPS_MODE_RETENTION       4

#define PMIC4_SMPS_MODE_PFM         5

#define PMIC4_SMPS_MODE_AUTO            6

#define PMIC4_SMPS_MODE_PWM         7

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#define PMIC4_BOB_MODE_PASS         0

#define PMIC4_BOB_MODE_PFM          1

#define PMIC4_BOB_MODE_AUTO         2

#define PMIC4_BOB_MODE_PWM          3

​

/**

 * struct rpmh_vreg_hw_data - RPMh regulator hardware configurations

 * @regulator_type:     RPMh accelerator type used to manage this

 *              regulator

 * @ops:            Pointer to regulator ops callback structure

 * @voltage_range:      The single range of voltages supported by this

 *              PMIC regulator type

 * @n_voltages:         The number of unique voltage set points defined

 *              by voltage_range

 * @hpm_min_load_uA:        Minimum load current in microamps that requires

 *              high power mode (HPM) operation.  This is used