linux-imx

/*

 * Copyright (c) 2014, Sony Mobile Communications AB.

 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

​

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/of_regulator.h>

#include <linux/mfd/qcom_rpm.h>

​

#include <dt-bindings/mfd/qcom-rpm.h>

​

#define MAX_REQUEST_LEN 2

​

struct request_member {

    int     word;

    unsigned int    mask;

    int     shift;

};

​

struct rpm_reg_parts {

    struct request_member mV;       /* used if voltage is in mV */

    struct request_member uV;       /* used if voltage is in uV */

    struct request_member ip;       /* peak current in mA */

    struct request_member pd;       /* pull down enable */

    struct request_member ia;       /* average current in mA */

    struct request_member fm;       /* force mode */

    struct request_member pm;       /* power mode */

    struct request_member pc;       /* pin control */

    struct request_member pf;       /* pin function */

    struct request_member enable_state; /* NCP and switch */

    struct request_member comp_mode;    /* NCP */

    struct request_member freq;     /* frequency: NCP and SMPS */

    struct request_member freq_clk_src; /* clock source: SMPS */

    struct request_member hpm;      /* switch: control OCP and SS */

    int request_len;

};

​

#define FORCE_MODE_IS_2_BITS(reg) \

    (((reg)->parts->fm.mask >> (reg)->parts->fm.shift) == 3)

​

struct qcom_rpm_reg {

    struct qcom_rpm *rpm;

​

    struct mutex lock;

    struct device *dev;

    struct regulator_desc desc;

    const struct rpm_reg_parts *parts;

​

    int resource;