linux-imx

/*

 * Copyright (C) ST-Ericsson SA 2010

 *

 * License Terms: GNU General Public License v2

 * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson

 *          Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson

 *

 * Power domain regulators on DB8500

 */

​

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/err.h>

#include <linux/spinlock.h>

#include <linux/platform_device.h>

#include <linux/mfd/dbx500-prcmu.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/db8500-prcmu.h>

#include <linux/regulator/of_regulator.h>

#include <linux/of.h>

#include <linux/module.h>

#include "dbx500-prcmu.h"

​

static int db8500_regulator_enable(struct regulator_dev *rdev)

{

    struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);

​

    if (info == NULL)

        return -EINVAL;

​

    dev_vdbg(rdev_get_dev(rdev), "regulator-%s-enable\n",

        info->desc.name);

​

    if (!info->is_enabled) {

        info->is_enabled = true;

        if (!info->exclude_from_power_state)

            power_state_active_enable();

    }

​

    return 0;

}

​

static int db8500_regulator_disable(struct regulator_dev *rdev)

{

    struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);

    int ret = 0;

​

    if (info == NULL)

        return -EINVAL;

​

    dev_vdbg(rdev_get_dev(rdev), "regulator-%s-disable\n",

        info->desc.name);

​

    if (info->is_enabled) {

        info->is_enabled = false;

        if (!info->exclude_from_power_state)

            ret = power_state_active_disable();

    }

​

    return ret;

}

​