linux-imx

/*

 * max8973-regulator.c -- Maxim max8973

 *

 * Regulator driver for MAXIM 8973 DC-DC step-down switching regulator.

 *

 * Copyright (c) 2012, NVIDIA Corporation.

 *

 * Author: Laxman Dewangan <ldewangan@nvidia.com>

 *

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

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation version 2.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,

 * whether express or implied; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

 * 02111-1307, USA

 */

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/err.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/max8973-regulator.h>

#include <linux/regulator/of_regulator.h>

#include <linux/gpio.h>

#include <linux/gpio/consumer.h>

#include <linux/of_gpio.h>

#include <linux/i2c.h>

#include <linux/slab.h>

#include <linux/regmap.h>

#include <linux/thermal.h>

#include <linux/irq.h>

#include <linux/interrupt.h>

​

/* Register definitions */

#define MAX8973_VOUT                    0x0

#define MAX8973_VOUT_DVS                0x1

#define MAX8973_CONTROL1                0x2

#define MAX8973_CONTROL2                0x3

#define MAX8973_CHIPID1                 0x4

#define MAX8973_CHIPID2                 0x5

​

#define MAX8973_MAX_VOUT_REG                2

​

/* MAX8973_VOUT */

#define MAX8973_VOUT_ENABLE             BIT(7)

#define MAX8973_VOUT_MASK               0x7F

​

/* MAX8973_VOUT_DVS */

#define MAX8973_DVS_VOUT_MASK               0x7F

​

/* MAX8973_CONTROL1 */