linux-imx

// SPDX-License-Identifier: GPL-2.0

// Copyright (C) STMicroelectronics 2018

// Author: Pascal Paillet <p.paillet@st.com> for STMicroelectronics.

​

#include <linux/interrupt.h>

#include <linux/mfd/stpmic1.h>

#include <linux/module.h>

#include <linux/of_irq.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 <dt-bindings/mfd/st,stpmic1.h>

​

/**

 * stpmic1 regulator description: this structure is used as driver data

 * @desc: regulator framework description

 * @mask_reset_reg: mask reset register address

 * @mask_reset_mask: mask rank and mask reset register mask

 * @icc_reg: icc register address

 * @icc_mask: icc register mask

 */

struct stpmic1_regulator_cfg {

    struct regulator_desc desc;

    u8 mask_reset_reg;

    u8 mask_reset_mask;

    u8 icc_reg;

    u8 icc_mask;

};

​

static int stpmic1_set_mode(struct regulator_dev *rdev, unsigned int mode);

static unsigned int stpmic1_get_mode(struct regulator_dev *rdev);

static int stpmic1_set_icc(struct regulator_dev *rdev);

static unsigned int stpmic1_map_mode(unsigned int mode);

​

enum {

    STPMIC1_BUCK1 = 0,

    STPMIC1_BUCK2 = 1,

    STPMIC1_BUCK3 = 2,

    STPMIC1_BUCK4 = 3,

    STPMIC1_LDO1 = 4,

    STPMIC1_LDO2 = 5,

    STPMIC1_LDO3 = 6,

    STPMIC1_LDO4 = 7,

    STPMIC1_LDO5 = 8,

    STPMIC1_LDO6 = 9,

    STPMIC1_VREF_DDR = 10,

    STPMIC1_BOOST = 11,

    STPMIC1_VBUS_OTG = 12,

    STPMIC1_SW_OUT = 13,

};

​

/* Enable time worst case is 5000mV/(2250uV/uS) */

#define PMIC_ENABLE_TIME_US 2200

​

static const struct regulator_linear_range buck1_ranges[] = {

    REGULATOR_LINEAR_RANGE(725000, 0, 4, 0),

    REGULATOR_LINEAR_RANGE(725000, 5, 36, 25000),

    REGULATOR_LINEAR_RANGE(1500000, 37, 63, 0),

};

​