linux-imx

/*

 * lm85.c - Part of lm_sensors, Linux kernel modules for hardware

 *      monitoring

 * Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>

 * Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>

 * Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>

 * Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>

 * Copyright (C) 2007--2014  Jean Delvare <jdelvare@suse.de>

 *

 * Chip details at        <http://www.national.com/ds/LM/LM85.pdf>

 *

 * 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; either version 2 of the License, or

 * (at your option) any later version.

 *

 * 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.

 *

 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

​

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/jiffies.h>

#include <linux/i2c.h>

#include <linux/hwmon.h>

#include <linux/hwmon-vid.h>

#include <linux/hwmon-sysfs.h>

#include <linux/err.h>

#include <linux/mutex.h>

#include <linux/util_macros.h>

​

/* Addresses to scan */

static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };

​

enum chips {

    lm85, lm96000,

    adm1027, adt7463, adt7468,

    emc6d100, emc6d102, emc6d103, emc6d103s

};

​

/* The LM85 registers */

​

#define LM85_REG_IN(nr)         (0x20 + (nr))

#define LM85_REG_IN_MIN(nr)     (0x44 + (nr) * 2)

#define LM85_REG_IN_MAX(nr)     (0x45 + (nr) * 2)

​

#define LM85_REG_TEMP(nr)       (0x25 + (nr))

#define LM85_REG_TEMP_MIN(nr)       (0x4e + (nr) * 2)

#define LM85_REG_TEMP_MAX(nr)       (0x4f + (nr) * 2)

​

/* Fan speeds are LSB, MSB (2 bytes) */

#define LM85_REG_FAN(nr)        (0x28 + (nr) * 2)

#define LM85_REG_FAN_MIN(nr)        (0x54 + (nr) * 2)

​

#define LM85_REG_PWM(nr)        (0x30 + (nr))