Merge branch 'linus' into idle-test

[deliverable/linux.git] / drivers / hwmon / pc87360.c

/*
 *  pc87360.c - Part of lm_sensors, Linux kernel modules
 *              for hardware monitoring
 *  Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org>
 *
 *  Copied from smsc47m1.c:
 *  Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.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; 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.
 *
 *  Supports the following chips:
 *
 *  Chip        #vin    #fan    #pwm    #temp   devid
 *  PC87360     -       2       2       -       0xE1
 *  PC87363     -       2       2       -       0xE8
 *  PC87364     -       3       3       -       0xE4
 *  PC87365     11      3       3       2       0xE5
 *  PC87366     11      3       3       3-4     0xE9
 *
 *  This driver assumes that no more than one chip is present, and one of
 *  the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/acpi.h>
#include <linux/io.h>

static u8 devid;
static struct platform_device *pdev;
static unsigned short extra_isa[3];
static u8 confreg[4];

static int init = 1;
module_param(init, int, 0);
MODULE_PARM_DESC(init,
 "Chip initialization level:\n"
 " 0: None\n"
 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
 " 3: Forcibly enable all voltage and temperature channels, including in9");

static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");

/*
 * Super-I/O registers and operations
 */

#define DEV     0x07    /* Register: Logical device select */
#define DEVID   0x20    /* Register: Device ID */
#define ACT     0x30    /* Register: Device activation */
#define BASE    0x60    /* Register: Base address */

#define FSCM    0x09    /* Logical device: fans */
#define VLM     0x0d    /* Logical device: voltages */
#define TMS     0x0e    /* Logical device: temperatures */
#define LDNI_MAX 3
static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };

#define LD_FAN          0
#define LD_IN           1
#define LD_TEMP         2

static inline void superio_outb(int sioaddr, int reg, int val)
{
        outb(reg, sioaddr);
        outb(val, sioaddr+1);
}

static inline int superio_inb(int sioaddr, int reg)
{
        outb(reg, sioaddr);
        return inb(sioaddr+1);
}

static inline void superio_exit(int sioaddr)
{
        outb(0x02, sioaddr);
        outb(0x02, sioaddr+1);
}

/*
 * Logical devices
 */

#define PC87360_EXTENT          0x10
#define PC87365_REG_BANK        0x09
#define NO_BANK                 0xff

/*
 * Fan registers and conversions
 */

/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
#define PC87360_REG_PRESCALE(nr)        (0x00 + 2 * (nr))
#define PC87360_REG_PWM(nr)             (0x01 + 2 * (nr))
#define PC87360_REG_FAN_MIN(nr)         (0x06 + 3 * (nr))
#define PC87360_REG_FAN(nr)             (0x07 + 3 * (nr))
#define PC87360_REG_FAN_STATUS(nr)      (0x08 + 3 * (nr))

#define FAN_FROM_REG(val,div)           ((val) == 0 ? 0: \
                                         480000 / ((val)*(div)))
#define FAN_TO_REG(val,div)             ((val) <= 100 ? 0 : \
                                         480000 / ((val)*(div)))
#define FAN_DIV_FROM_REG(val)           (1 << ((val >> 5) & 0x03))
#define FAN_STATUS_FROM_REG(val)        ((val) & 0x07)

#define FAN_CONFIG_MONITOR(val,nr)      (((val) >> (2 + nr * 3)) & 1)
#define FAN_CONFIG_CONTROL(val,nr)      (((val) >> (3 + nr * 3)) & 1)
#define FAN_CONFIG_INVERT(val,nr)       (((val) >> (4 + nr * 3)) & 1)

#define PWM_FROM_REG(val,inv)           ((inv) ? 255 - (val) : (val))
static inline u8 PWM_TO_REG(int val, int inv)
{
        if (inv)
                val = 255 - val;
        if (val < 0)
                return 0;
        if (val > 255)
                return 255;
        return val;
}

/*
 * Voltage registers and conversions
 */

#define PC87365_REG_IN_CONVRATE         0x07
#define PC87365_REG_IN_CONFIG           0x08
#define PC87365_REG_IN                  0x0B
#define PC87365_REG_IN_MIN              0x0D
#define PC87365_REG_IN_MAX              0x0C
#define PC87365_REG_IN_STATUS           0x0A
#define PC87365_REG_IN_ALARMS1          0x00
#define PC87365_REG_IN_ALARMS2          0x01
#define PC87365_REG_VID                 0x06

#define IN_FROM_REG(val,ref)            (((val) * (ref) + 128) / 256)
#define IN_TO_REG(val,ref)              ((val) < 0 ? 0 : \
                                         (val)*256 >= (ref)*255 ? 255: \
                                         ((val) * 256 + (ref)/2) / (ref))

/*
 * Temperature registers and conversions
 */

#define PC87365_REG_TEMP_CONFIG         0x08
#define PC87365_REG_TEMP                0x0B
#define PC87365_REG_TEMP_MIN            0x0D
#define PC87365_REG_TEMP_MAX            0x0C
#define PC87365_REG_TEMP_CRIT           0x0E
#define PC87365_REG_TEMP_STATUS         0x0A
#define PC87365_REG_TEMP_ALARMS         0x00

#define TEMP_FROM_REG(val)              ((val) * 1000)
#define TEMP_TO_REG(val)                ((val) < -55000 ? -55 : \
                                         (val) > 127000 ? 127 : \
                                         (val) < 0 ? ((val) - 500) / 1000 : \
                                         ((val) + 500) / 1000)

/*
 * Device data
 */

struct pc87360_data {
        const char *name;
        struct device *hwmon_dev;
        struct mutex lock;
        struct mutex update_lock;
        char valid;             /* !=0 if following fields are valid */
        unsigned long last_updated;     /* In jiffies */

        int address[3];

        u8 fannr, innr, tempnr;

        u8 fan[3];              /* Register value */
        u8 fan_min[3];          /* Register value */
        u8 fan_status[3];       /* Register value */
        u8 pwm[3];              /* Register value */
        u16 fan_conf;           /* Configuration register values, combined */

        u16 in_vref;            /* 1 mV/bit */
        u8 in[14];              /* Register value */
        u8 in_min[14];          /* Register value */
        u8 in_max[14];          /* Register value */
        u8 in_crit[3];          /* Register value */
        u8 in_status[14];       /* Register value */
        u16 in_alarms;          /* Register values, combined, masked */
        u8 vid_conf;            /* Configuration register value */
        u8 vrm;
        u8 vid;                 /* Register value */

        s8 temp[3];             /* Register value */
        s8 temp_min[3];         /* Register value */
        s8 temp_max[3];         /* Register value */
        s8 temp_crit[3];        /* Register value */
        u8 temp_status[3];      /* Register value */
        u8 temp_alarms;         /* Register value, masked */
};

/*
 * Functions declaration
 */

static int pc87360_probe(struct platform_device *pdev);
static int __devexit pc87360_remove(struct platform_device *pdev);

static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
                              u8 reg);
static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
                                u8 reg, u8 value);
static void pc87360_init_device(struct platform_device *pdev,
                                int use_thermistors);
static struct pc87360_data *pc87360_update_device(struct device *dev);

/*
 * Driver data
 */

static struct platform_driver pc87360_driver = {
        .driver = {
                .owner  = THIS_MODULE,
                .name   = "pc87360",
        },
        .probe          = pc87360_probe,
        .remove         = __devexit_p(pc87360_remove),
};

/*
 * Sysfs stuff
 */

static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
                       FAN_DIV_FROM_REG(data->fan_status[attr->index])));
}
static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
                       FAN_DIV_FROM_REG(data->fan_status[attr->index])));
}
static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n",
                       FAN_DIV_FROM_REG(data->fan_status[attr->index]));
}
static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n",
                       FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
}
static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long fan_min = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));

        /* If it wouldn't fit, change clock divisor */
        while (fan_min > 255
            && (data->fan_status[attr->index] & 0x60) != 0x60) {
                fan_min >>= 1;
                data->fan[attr->index] >>= 1;
                data->fan_status[attr->index] += 0x20;
        }
        data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
        pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
                            data->fan_min[attr->index]);

        /* Write new divider, preserve alarm bits */
        pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
                            data->fan_status[attr->index] & 0xF9);
        mutex_unlock(&data->update_lock);

        return count;
}

static struct sensor_device_attribute fan_input[] = {
        SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
        SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
        SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
};
static struct sensor_device_attribute fan_status[] = {
        SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
        SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
        SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
};
static struct sensor_device_attribute fan_div[] = {
        SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
        SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
        SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
};
static struct sensor_device_attribute fan_min[] = {
        SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
        SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
        SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
};

#define FAN_UNIT_ATTRS(X)       \
        &fan_input[X].dev_attr.attr,    \
        &fan_status[X].dev_attr.attr,   \
        &fan_div[X].dev_attr.attr,      \
        &fan_min[X].dev_attr.attr

static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n",
                       PWM_FROM_REG(data->pwm[attr->index],
                                    FAN_CONFIG_INVERT(data->fan_conf,
                                                      attr->index)));
}
static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->pwm[attr->index] = PWM_TO_REG(val,
                              FAN_CONFIG_INVERT(data->fan_conf, attr->index));
        pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
                            data->pwm[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}

static struct sensor_device_attribute pwm[] = {
        SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
        SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
        SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
};

static struct attribute * pc8736x_fan_attr_array[] = {
        FAN_UNIT_ATTRS(0),
        FAN_UNIT_ATTRS(1),
        FAN_UNIT_ATTRS(2),
        &pwm[0].dev_attr.attr,
        &pwm[1].dev_attr.attr,
        &pwm[2].dev_attr.attr,
        NULL
};
static const struct attribute_group pc8736x_fan_group = {
        .attrs = pc8736x_fan_attr_array,
};

static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
                       data->in_vref));
}
static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
                       data->in_vref));
}
static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
                       data->in_vref));
}
static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", data->in_status[attr->index]);
}
static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
                            data->in_min[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}
static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->in_max[attr->index] = IN_TO_REG(val,
                               data->in_vref);
        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
                            data->in_max[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}

static struct sensor_device_attribute in_input[] = {
        SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
        SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
        SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
        SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
        SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
        SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
        SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
        SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
        SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
        SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
        SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
};
static struct sensor_device_attribute in_status[] = {
        SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
        SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
        SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
        SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
        SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
        SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
        SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
        SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
        SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
        SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
        SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
};
static struct sensor_device_attribute in_min[] = {
        SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
        SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
        SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
        SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
        SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
        SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
        SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
        SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
        SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
        SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
        SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
};
static struct sensor_device_attribute in_max[] = {
        SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
        SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
        SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
        SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
        SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
        SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
        SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
        SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
        SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
        SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
        SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
};

/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
#define CHAN_ALM_MIN    0x02    /* min limit crossed */
#define CHAN_ALM_MAX    0x04    /* max limit exceeded */
#define TEMP_ALM_CRIT   0x08    /* temp crit exceeded (temp only) */

/* show_in_min/max_alarm() reads data from the per-channel status
   register (sec 11.5.12), not the vin event status registers (sec
   11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */

static ssize_t show_in_min_alarm(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
}
static ssize_t show_in_max_alarm(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
}

static struct sensor_device_attribute in_min_alarm[] = {
        SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
        SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
        SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
        SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
        SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
        SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
        SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
        SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
        SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
        SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
        SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
};
static struct sensor_device_attribute in_max_alarm[] = {
        SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
        SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
        SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
        SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
        SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
        SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
        SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
        SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
        SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
        SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
        SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
};

#define VIN_UNIT_ATTRS(X) \
        &in_input[X].dev_attr.attr,     \
        &in_status[X].dev_attr.attr,    \
        &in_min[X].dev_attr.attr,       \
        &in_max[X].dev_attr.attr,       \
        &in_min_alarm[X].dev_attr.attr, \
        &in_max_alarm[X].dev_attr.attr

static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);

static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
{
        struct pc87360_data *data = dev_get_drvdata(dev);
        return sprintf(buf, "%u\n", data->vrm);
}
static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
        struct pc87360_data *data = dev_get_drvdata(dev);
        data->vrm = simple_strtoul(buf, NULL, 10);
        return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);

static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", data->in_alarms);
}
static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);

static struct attribute *pc8736x_vin_attr_array[] = {
        VIN_UNIT_ATTRS(0),
        VIN_UNIT_ATTRS(1),
        VIN_UNIT_ATTRS(2),
        VIN_UNIT_ATTRS(3),
        VIN_UNIT_ATTRS(4),
        VIN_UNIT_ATTRS(5),
        VIN_UNIT_ATTRS(6),
        VIN_UNIT_ATTRS(7),
        VIN_UNIT_ATTRS(8),
        VIN_UNIT_ATTRS(9),
        VIN_UNIT_ATTRS(10),
        &dev_attr_cpu0_vid.attr,
        &dev_attr_vrm.attr,
        &dev_attr_alarms_in.attr,
        NULL
};
static const struct attribute_group pc8736x_vin_group = {
        .attrs = pc8736x_vin_attr_array,
};

static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
                       data->in_vref));
}
static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
                       data->in_vref));
}
static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
                       data->in_vref));
}
static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
                       data->in_vref));
}
static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", data->in_status[attr->index]);
}
static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
                            data->in_min[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}
static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
                            data->in_max[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}
static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
                            data->in_crit[attr->index-11]);
        mutex_unlock(&data->update_lock);
        return count;
}

/* the +11 term below reflects the fact that VLM units 11,12,13 are
   used in the chip to measure voltage across the thermistors
*/
static struct sensor_device_attribute therm_input[] = {
        SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
        SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
        SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
};
static struct sensor_device_attribute therm_status[] = {
        SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
        SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
        SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
};
static struct sensor_device_attribute therm_min[] = {
        SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
                    show_therm_min, set_therm_min, 0+11),
        SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
                    show_therm_min, set_therm_min, 1+11),
        SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
                    show_therm_min, set_therm_min, 2+11),
};
static struct sensor_device_attribute therm_max[] = {
        SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
                    show_therm_max, set_therm_max, 0+11),
        SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
                    show_therm_max, set_therm_max, 1+11),
        SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
                    show_therm_max, set_therm_max, 2+11),
};
static struct sensor_device_attribute therm_crit[] = {
        SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
                    show_therm_crit, set_therm_crit, 0+11),
        SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
                    show_therm_crit, set_therm_crit, 1+11),
        SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
                    show_therm_crit, set_therm_crit, 2+11),
};

/* show_therm_min/max_alarm() reads data from the per-channel voltage
   status register (sec 11.5.12) */

static ssize_t show_therm_min_alarm(struct device *dev,
                                struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
}
static ssize_t show_therm_max_alarm(struct device *dev,
                                struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
}
static ssize_t show_therm_crit_alarm(struct device *dev,
                                struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
}

static struct sensor_device_attribute therm_min_alarm[] = {
        SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
                    show_therm_min_alarm, NULL, 0+11),
        SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
                    show_therm_min_alarm, NULL, 1+11),
        SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
                    show_therm_min_alarm, NULL, 2+11),
};
static struct sensor_device_attribute therm_max_alarm[] = {
        SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
                    show_therm_max_alarm, NULL, 0+11),
        SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
                    show_therm_max_alarm, NULL, 1+11),
        SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
                    show_therm_max_alarm, NULL, 2+11),
};
static struct sensor_device_attribute therm_crit_alarm[] = {
        SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
                    show_therm_crit_alarm, NULL, 0+11),
        SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
                    show_therm_crit_alarm, NULL, 1+11),
        SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
                    show_therm_crit_alarm, NULL, 2+11),
};

#define THERM_UNIT_ATTRS(X) \
        &therm_input[X].dev_attr.attr,  \
        &therm_status[X].dev_attr.attr, \
        &therm_min[X].dev_attr.attr,    \
        &therm_max[X].dev_attr.attr,    \
        &therm_crit[X].dev_attr.attr,   \
        &therm_min_alarm[X].dev_attr.attr, \
        &therm_max_alarm[X].dev_attr.attr, \
        &therm_crit_alarm[X].dev_attr.attr

static struct attribute * pc8736x_therm_attr_array[] = {
        THERM_UNIT_ATTRS(0),
        THERM_UNIT_ATTRS(1),
        THERM_UNIT_ATTRS(2),
        NULL
};
static const struct attribute_group pc8736x_therm_group = {
        .attrs = pc8736x_therm_attr_array,
};

static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
}
static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
}
static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
}
static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
}
static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%d\n", data->temp_status[attr->index]);
}
static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->temp_min[attr->index] = TEMP_TO_REG(val);
        pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
                            data->temp_min[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}
static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->temp_max[attr->index] = TEMP_TO_REG(val);
        pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
                            data->temp_max[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}
static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
        size_t count)
{
        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
        struct pc87360_data *data = dev_get_drvdata(dev);
        long val = simple_strtol(buf, NULL, 10);

        mutex_lock(&data->update_lock);
        data->temp_crit[attr->index] = TEMP_TO_REG(val);
        pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
                            data->temp_crit[attr->index]);
        mutex_unlock(&data->update_lock);
        return count;
}

static struct sensor_device_attribute temp_input[] = {
        SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
        SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
        SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
};
static struct sensor_device_attribute temp_status[] = {
        SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
        SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
        SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
};
static struct sensor_device_attribute temp_min[] = {
        SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
                    show_temp_min, set_temp_min, 0),
        SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
                    show_temp_min, set_temp_min, 1),
        SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
                    show_temp_min, set_temp_min, 2),
};
static struct sensor_device_attribute temp_max[] = {
        SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
                    show_temp_max, set_temp_max, 0),
        SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
                    show_temp_max, set_temp_max, 1),
        SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
                    show_temp_max, set_temp_max, 2),
};
static struct sensor_device_attribute temp_crit[] = {
        SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
                    show_temp_crit, set_temp_crit, 0),
        SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
                    show_temp_crit, set_temp_crit, 1),
        SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
                    show_temp_crit, set_temp_crit, 2),
};

static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        return sprintf(buf, "%u\n", data->temp_alarms);
}
static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);

/* show_temp_min/max_alarm() reads data from the per-channel status
   register (sec 12.3.7), not the temp event status registers (sec
   12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */

static ssize_t show_temp_min_alarm(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
}
static ssize_t show_temp_max_alarm(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
}
static ssize_t show_temp_crit_alarm(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
}

static struct sensor_device_attribute temp_min_alarm[] = {
        SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
        SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
        SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
};
static struct sensor_device_attribute temp_max_alarm[] = {
        SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
        SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
        SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
};
static struct sensor_device_attribute temp_crit_alarm[] = {
        SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
        SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
        SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
};

#define TEMP_FAULT      0x40    /* open diode */
static ssize_t show_temp_fault(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = pc87360_update_device(dev);
        unsigned nr = to_sensor_dev_attr(devattr)->index;

        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
}
static struct sensor_device_attribute temp_fault[] = {
        SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
        SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
        SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
};

#define TEMP_UNIT_ATTRS(X) \
        &temp_input[X].dev_attr.attr,   \
        &temp_status[X].dev_attr.attr,  \
        &temp_min[X].dev_attr.attr,     \
        &temp_max[X].dev_attr.attr,     \
        &temp_crit[X].dev_attr.attr,    \
        &temp_min_alarm[X].dev_attr.attr, \
        &temp_max_alarm[X].dev_attr.attr, \
        &temp_crit_alarm[X].dev_attr.attr, \
        &temp_fault[X].dev_attr.attr

static struct attribute * pc8736x_temp_attr_array[] = {
        TEMP_UNIT_ATTRS(0),
        TEMP_UNIT_ATTRS(1),
        TEMP_UNIT_ATTRS(2),
        /* include the few miscellaneous atts here */
        &dev_attr_alarms_temp.attr,
        NULL
};
static const struct attribute_group pc8736x_temp_group = {
        .attrs = pc8736x_temp_attr_array,
};

static ssize_t show_name(struct device *dev,
                        struct device_attribute *devattr, char *buf)
{
        struct pc87360_data *data = dev_get_drvdata(dev);
        return sprintf(buf, "%s\n", data->name);
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);

/*
 * Device detection, registration and update
 */

static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
{
        u16 val;
        int i;
        int nrdev; /* logical device count */

        /* No superio_enter */

        /* Identify device */
        val = force_id ? force_id : superio_inb(sioaddr, DEVID);
        switch (val) {
        case 0xE1: /* PC87360 */
        case 0xE8: /* PC87363 */
        case 0xE4: /* PC87364 */
                nrdev = 1;
                break;
        case 0xE5: /* PC87365 */
        case 0xE9: /* PC87366 */
                nrdev = 3;
                break;
        default:
                superio_exit(sioaddr);
                return -ENODEV;
        }
        /* Remember the device id */
        *devid = val;

        for (i = 0; i < nrdev; i++) {
                /* select logical device */
                superio_outb(sioaddr, DEV, logdev[i]);

                val = superio_inb(sioaddr, ACT);
                if (!(val & 0x01)) {
                        printk(KERN_INFO "pc87360: Device 0x%02x not "
                               "activated\n", logdev[i]);
                        continue;
                }

                val = (superio_inb(sioaddr, BASE) << 8)
                    | superio_inb(sioaddr, BASE + 1);
                if (!val) {
                        printk(KERN_INFO "pc87360: Base address not set for "
                               "device 0x%02x\n", logdev[i]);
                        continue;
                }

                addresses[i] = val;

                if (i==0) { /* Fans */
                        confreg[0] = superio_inb(sioaddr, 0xF0);
                        confreg[1] = superio_inb(sioaddr, 0xF1);

#ifdef DEBUG
                        printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
                               "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
                               (confreg[0]>>3)&1, (confreg[0]>>4)&1);
                        printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
                               "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
                               (confreg[0]>>6)&1, (confreg[0]>>7)&1);
                        printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
                               "ctrl=%d inv=%d\n", confreg[1]&1,
                               (confreg[1]>>1)&1, (confreg[1]>>2)&1);
#endif
                } else if (i==1) { /* Voltages */
                        /* Are we using thermistors? */
                        if (*devid == 0xE9) { /* PC87366 */
                                /* These registers are not logical-device
                                   specific, just that we won't need them if
                                   we don't use the VLM device */
                                confreg[2] = superio_inb(sioaddr, 0x2B);
                                confreg[3] = superio_inb(sioaddr, 0x25);

                                if (confreg[2] & 0x40) {
                                        printk(KERN_INFO "pc87360: Using "
                                               "thermistors for temperature "
                                               "monitoring\n");
                                }
                                if (confreg[3] & 0xE0) {
                                        printk(KERN_INFO "pc87360: VID "
                                               "inputs routed (mode %u)\n",
                                               confreg[3] >> 5);
                                }
                        }
                }
        }

        superio_exit(sioaddr);
        return 0;
}

static int __devinit pc87360_probe(struct platform_device *pdev)
{
        int i;
        struct pc87360_data *data;
        int err = 0;
        const char *name = "pc87360";
        int use_thermistors = 0;
        struct device *dev = &pdev->dev;

        if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
                return -ENOMEM;

        data->fannr = 2;
        data->innr = 0;
        data->tempnr = 0;

        switch (devid) {
        case 0xe8:
                name = "pc87363";
                break;
        case 0xe4:
                name = "pc87364";
                data->fannr = 3;
                break;
        case 0xe5:
                name = "pc87365";
                data->fannr = extra_isa[0] ? 3 : 0;
                data->innr = extra_isa[1] ? 11 : 0;
                data->tempnr = extra_isa[2] ? 2 : 0;
                break;
        case 0xe9:
                name = "pc87366";
                data->fannr = extra_isa[0] ? 3 : 0;
                data->innr = extra_isa[1] ? 14 : 0;
                data->tempnr = extra_isa[2] ? 3 : 0;
                break;
        }

        data->name = name;
        data->valid = 0;
        mutex_init(&data->lock);
        mutex_init(&data->update_lock);
        platform_set_drvdata(pdev, data);

        for (i = 0; i < LDNI_MAX; i++) {
                if (((data->address[i] = extra_isa[i]))
                 && !request_region(extra_isa[i], PC87360_EXTENT,
                                    pc87360_driver.driver.name)) {
                        dev_err(dev, "Region 0x%x-0x%x already "
                                "in use!\n", extra_isa[i],
                                extra_isa[i]+PC87360_EXTENT-1);
                        for (i--; i >= 0; i--)
                                release_region(extra_isa[i], PC87360_EXTENT);
                        err = -EBUSY;
                        goto ERROR1;
                }
        }

        /* Retrieve the fans configuration from Super-I/O space */
        if (data->fannr)
                data->fan_conf = confreg[0] | (confreg[1] << 8);

        /* Use the correct reference voltage
           Unless both the VLM and the TMS logical devices agree to
           use an external Vref, the internal one is used. */
        if (data->innr) {
                i = pc87360_read_value(data, LD_IN, NO_BANK,
                                       PC87365_REG_IN_CONFIG);
                if (data->tempnr) {
                        i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
                                                PC87365_REG_TEMP_CONFIG);
                }
                data->in_vref = (i&0x02) ? 3025 : 2966;
                dev_dbg(dev, "Using %s reference voltage\n",
                        (i&0x02) ? "external" : "internal");

                data->vid_conf = confreg[3];
                data->vrm = vid_which_vrm();
        }

        /* Fan clock dividers may be needed before any data is read */
        for (i = 0; i < data->fannr; i++) {
                if (FAN_CONFIG_MONITOR(data->fan_conf, i))
                        data->fan_status[i] = pc87360_read_value(data,
                                              LD_FAN, NO_BANK,
                                              PC87360_REG_FAN_STATUS(i));
        }

        if (init > 0) {
                if (devid == 0xe9 && data->address[1]) /* PC87366 */
                        use_thermistors = confreg[2] & 0x40;

                pc87360_init_device(pdev, use_thermistors);
        }

        /* Register all-or-nothing sysfs groups */

        if (data->innr &&
            (err = sysfs_create_group(&dev->kobj,
                                      &pc8736x_vin_group)))
                goto ERROR3;

        if (data->innr == 14 &&
            (err = sysfs_create_group(&dev->kobj,
                                      &pc8736x_therm_group)))
                goto ERROR3;

        /* create device attr-files for varying sysfs groups */

        if (data->tempnr) {
                for (i = 0; i < data->tempnr; i++) {
                        if ((err = device_create_file(dev,
                                        &temp_input[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_min[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_max[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_crit[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_status[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_min_alarm[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_max_alarm[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_crit_alarm[i].dev_attr))
                            || (err = device_create_file(dev,
                                        &temp_fault[i].dev_attr)))
                                goto ERROR3;
                }
                if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
                        goto ERROR3;
        }

        for (i = 0; i < data->fannr; i++) {
                if (FAN_CONFIG_MONITOR(data->fan_conf, i)
                    && ((err = device_create_file(dev,
                                        &fan_input[i].dev_attr))
                        || (err = device_create_file(dev,
                                        &fan_min[i].dev_attr))
                        || (err = device_create_file(dev,
                                        &fan_div[i].dev_attr))
                        || (err = device_create_file(dev,
                                        &fan_status[i].dev_attr))))
                        goto ERROR3;

                if (FAN_CONFIG_CONTROL(data->fan_conf, i)
                    && (err = device_create_file(dev, &pwm[i].dev_attr)))
                        goto ERROR3;
        }

        if ((err = device_create_file(dev, &dev_attr_name)))
                goto ERROR3;

        data->hwmon_dev = hwmon_device_register(dev);
        if (IS_ERR(data->hwmon_dev)) {
                err = PTR_ERR(data->hwmon_dev);
                goto ERROR3;
        }
        return 0;

ERROR3:
        device_remove_file(dev, &dev_attr_name);
        /* can still remove groups whose members were added individually */
        sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
        sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
        sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
        sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
        for (i = 0; i < 3; i++) {
                if (data->address[i]) {
                        release_region(data->address[i], PC87360_EXTENT);
                }
        }
ERROR1:
        kfree(data);
        return err;
}

static int __devexit pc87360_remove(struct platform_device *pdev)
{
        struct pc87360_data *data = platform_get_drvdata(pdev);
        int i;

        hwmon_device_unregister(data->hwmon_dev);

        device_remove_file(&pdev->dev, &dev_attr_name);
        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);

        for (i = 0; i < 3; i++) {
                if (data->address[i]) {
                        release_region(data->address[i], PC87360_EXTENT);
                }
        }
        kfree(data);

        return 0;
}

/* ldi is the logical device index
   bank is for voltages and temperatures only */
static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
                              u8 reg)
{
        int res;

        mutex_lock(&(data->lock));
        if (bank != NO_BANK)
                outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
        res = inb_p(data->address[ldi] + reg);
        mutex_unlock(&(data->lock));

        return res;
}

static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
                                u8 reg, u8 value)
{
        mutex_lock(&(data->lock));
        if (bank != NO_BANK)
                outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
        outb_p(value, data->address[ldi] + reg);
        mutex_unlock(&(data->lock));
}

/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
#define CHAN_CNVRTD     0x80    /* new data ready */
#define CHAN_ENA        0x01    /* enabled channel (temp or vin) */
#define CHAN_ALM_ENA    0x10    /* propagate to alarms-reg ?? (chk val!) */
#define CHAN_READY      (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */

#define TEMP_OTS_OE     0x20    /* OTS Output Enable */
#define VIN_RW1C_MASK   (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN)   /* 0x87 */
#define TEMP_RW1C_MASK  (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */

static void pc87360_init_device(struct platform_device *pdev,
                                int use_thermistors)
{
        struct pc87360_data *data = platform_get_drvdata(pdev);
        int i, nr;
        const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
        const u8 init_temp[3] = { 2, 2, 1 };
        u8 reg;

        if (init >= 2 && data->innr) {
                reg = pc87360_read_value(data, LD_IN, NO_BANK,
                                         PC87365_REG_IN_CONVRATE);
                dev_info(&pdev->dev, "VLM conversion set to "
                         "1s period, 160us delay\n");
                pc87360_write_value(data, LD_IN, NO_BANK,
                                    PC87365_REG_IN_CONVRATE,
                                    (reg & 0xC0) | 0x11);
        }

        nr = data->innr < 11 ? data->innr : 11;
        for (i = 0; i < nr; i++) {
                reg = pc87360_read_value(data, LD_IN, i,
                                         PC87365_REG_IN_STATUS);
                dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
                if (init >= init_in[i]) {
                        /* Forcibly enable voltage channel */
                        if (!(reg & CHAN_ENA)) {
                                dev_dbg(&pdev->dev, "Forcibly "
                                        "enabling in%d\n", i);
                                pc87360_write_value(data, LD_IN, i,
                                                    PC87365_REG_IN_STATUS,
                                                    (reg & 0x68) | 0x87);
                        }
                }
        }

        /* We can't blindly trust the Super-I/O space configuration bit,
           most BIOS won't set it properly */
        dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
        for (i = 11; i < data->innr; i++) {
                reg = pc87360_read_value(data, LD_IN, i,
                                         PC87365_REG_TEMP_STATUS);
                use_thermistors = use_thermistors || (reg & CHAN_ENA);
                /* thermistors are temp[4-6], measured on vin[11-14] */
                dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
        }
        dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);

        i = use_thermistors ? 2 : 0;
        for (; i < data->tempnr; i++) {
                reg = pc87360_read_value(data, LD_TEMP, i,
                                         PC87365_REG_TEMP_STATUS);
                dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i+1, reg);
                if (init >= init_temp[i]) {
                        /* Forcibly enable temperature channel */
                        if (!(reg & CHAN_ENA)) {
                                dev_dbg(&pdev->dev, "Forcibly "
                                        "enabling temp%d\n", i+1);
                                pc87360_write_value(data, LD_TEMP, i,
                                                    PC87365_REG_TEMP_STATUS,
                                                    0xCF);
                        }
                }
        }

        if (use_thermistors) {
                for (i = 11; i < data->innr; i++) {
                        if (init >= init_in[i]) {
                                /* The pin may already be used by thermal
                                   diodes */
                                reg = pc87360_read_value(data, LD_TEMP,
                                      (i-11)/2, PC87365_REG_TEMP_STATUS);
                                if (reg & CHAN_ENA) {
                                        dev_dbg(&pdev->dev, "Skipping "
                                                "temp%d, pin already in use "
                                                "by temp%d\n", i-7, (i-11)/2);
                                        continue;
                                }

                                /* Forcibly enable thermistor channel */
                                reg = pc87360_read_value(data, LD_IN, i,
                                                         PC87365_REG_IN_STATUS);
                                if (!(reg & CHAN_ENA)) {
                                        dev_dbg(&pdev->dev, "Forcibly "
                                                "enabling temp%d\n", i-7);
                                        pc87360_write_value(data, LD_IN, i,
                                                PC87365_REG_TEMP_STATUS,
                                                (reg & 0x60) | 0x8F);
                                }
                        }
                }
        }

        if (data->innr) {
                reg = pc87360_read_value(data, LD_IN, NO_BANK,
                                         PC87365_REG_IN_CONFIG);
                dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
                if (reg & CHAN_ENA) {
                        dev_dbg(&pdev->dev, "Forcibly "
                                "enabling monitoring (VLM)\n");
                        pc87360_write_value(data, LD_IN, NO_BANK,
                                            PC87365_REG_IN_CONFIG,
                                            reg & 0xFE);
                }
        }

        if (data->tempnr) {
                reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
                                         PC87365_REG_TEMP_CONFIG);
                dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
                if (reg & CHAN_ENA) {
                        dev_dbg(&pdev->dev, "Forcibly enabling "
                                "monitoring (TMS)\n");
                        pc87360_write_value(data, LD_TEMP, NO_BANK,
                                            PC87365_REG_TEMP_CONFIG,
                                            reg & 0xFE);
                }

                if (init >= 2) {
                        /* Chip config as documented by National Semi. */
                        pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
                        /* We voluntarily omit the bank here, in case the
                           sequence itself matters. It shouldn't be a problem,
                           since nobody else is supposed to access the
                           device at that point. */
                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
                }
        }
}

static void pc87360_autodiv(struct device *dev, int nr)
{
        struct pc87360_data *data = dev_get_drvdata(dev);
        u8 old_min = data->fan_min[nr];

        /* Increase clock divider if needed and possible */
        if ((data->fan_status[nr] & 0x04) /* overflow flag */
         || (data->fan[nr] >= 224)) { /* next to overflow */
                if ((data->fan_status[nr] & 0x60) != 0x60) {
                        data->fan_status[nr] += 0x20;
                        data->fan_min[nr] >>= 1;
                        data->fan[nr] >>= 1;
                        dev_dbg(dev, "Increasing "
                                "clock divider to %d for fan %d\n",
                                FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
                }
        } else {
                /* Decrease clock divider if possible */
                while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
                 && data->fan[nr] < 85 /* bad accuracy */
                 && (data->fan_status[nr] & 0x60) != 0x00) {
                        data->fan_status[nr] -= 0x20;
                        data->fan_min[nr] <<= 1;
                        data->fan[nr] <<= 1;
                        dev_dbg(dev, "Decreasing "
                                "clock divider to %d for fan %d\n",
                                FAN_DIV_FROM_REG(data->fan_status[nr]),
                                nr+1);
                }
        }

        /* Write new fan min if it changed */
        if (old_min != data->fan_min[nr]) {
                pc87360_write_value(data, LD_FAN, NO_BANK,
                                    PC87360_REG_FAN_MIN(nr),
                                    data->fan_min[nr]);
        }
}

static struct pc87360_data *pc87360_update_device(struct device *dev)
{
        struct pc87360_data *data = dev_get_drvdata(dev);
        u8 i;

        mutex_lock(&data->update_lock);

        if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
                dev_dbg(dev, "Data update\n");

                /* Fans */
                for (i = 0; i < data->fannr; i++) {
                        if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
                                data->fan_status[i] =
                                        pc87360_read_value(data, LD_FAN,
                                        NO_BANK, PC87360_REG_FAN_STATUS(i));
                                data->fan[i] = pc87360_read_value(data, LD_FAN,
                                               NO_BANK, PC87360_REG_FAN(i));
                                data->fan_min[i] = pc87360_read_value(data,
                                                   LD_FAN, NO_BANK,
                                                   PC87360_REG_FAN_MIN(i));
                                /* Change clock divider if needed */
                                pc87360_autodiv(dev, i);
                                /* Clear bits and write new divider */
                                pc87360_write_value(data, LD_FAN, NO_BANK,
                                                    PC87360_REG_FAN_STATUS(i),
                                                    data->fan_status[i]);
                        }
                        if (FAN_CONFIG_CONTROL(data->fan_conf, i))
                                data->pwm[i] = pc87360_read_value(data, LD_FAN,
                                               NO_BANK, PC87360_REG_PWM(i));
                }

                /* Voltages */
                for (i = 0; i < data->innr; i++) {
                        data->in_status[i] = pc87360_read_value(data, LD_IN, i,
                                             PC87365_REG_IN_STATUS);
                        /* Clear bits */
                        pc87360_write_value(data, LD_IN, i,
                                            PC87365_REG_IN_STATUS,
                                            data->in_status[i]);
                        if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
                                data->in[i] = pc87360_read_value(data, LD_IN,
                                              i, PC87365_REG_IN);
                        }
                        if (data->in_status[i] & CHAN_ENA) {
                                data->in_min[i] = pc87360_read_value(data,
                                                  LD_IN, i,
                                                  PC87365_REG_IN_MIN);
                                data->in_max[i] = pc87360_read_value(data,
                                                  LD_IN, i,
                                                  PC87365_REG_IN_MAX);
                                if (i >= 11)
                                        data->in_crit[i-11] =
                                                pc87360_read_value(data, LD_IN,
                                                i, PC87365_REG_TEMP_CRIT);
                        }
                }
                if (data->innr) {
                        data->in_alarms = pc87360_read_value(data, LD_IN,
                                          NO_BANK, PC87365_REG_IN_ALARMS1)
                                        | ((pc87360_read_value(data, LD_IN,
                                            NO_BANK, PC87365_REG_IN_ALARMS2)
                                            & 0x07) << 8);
                        data->vid = (data->vid_conf & 0xE0) ?
                                    pc87360_read_value(data, LD_IN,
                                    NO_BANK, PC87365_REG_VID) : 0x1F;
                }

                /* Temperatures */
                for (i = 0; i < data->tempnr; i++) {
                        data->temp_status[i] = pc87360_read_value(data,
                                               LD_TEMP, i,
                                               PC87365_REG_TEMP_STATUS);
                        /* Clear bits */
                        pc87360_write_value(data, LD_TEMP, i,
                                            PC87365_REG_TEMP_STATUS,
                                            data->temp_status[i]);
                        if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
                                data->temp[i] = pc87360_read_value(data,
                                                LD_TEMP, i,
                                                PC87365_REG_TEMP);
                        }
                        if (data->temp_status[i] & CHAN_ENA) {
                                data->temp_min[i] = pc87360_read_value(data,
                                                    LD_TEMP, i,
                                                    PC87365_REG_TEMP_MIN);
                                data->temp_max[i] = pc87360_read_value(data,
                                                    LD_TEMP, i,
                                                    PC87365_REG_TEMP_MAX);
                                data->temp_crit[i] = pc87360_read_value(data,
                                                     LD_TEMP, i,
                                                     PC87365_REG_TEMP_CRIT);
                        }
                }
                if (data->tempnr) {
                        data->temp_alarms = pc87360_read_value(data, LD_TEMP,
                                            NO_BANK, PC87365_REG_TEMP_ALARMS)
                                            & 0x3F;
                }

                data->last_updated = jiffies;
                data->valid = 1;
        }

        mutex_unlock(&data->update_lock);

        return data;
}

static int __init pc87360_device_add(unsigned short address)
{
        struct resource res[3];
        int err, i, res_count;

        pdev = platform_device_alloc("pc87360", address);
        if (!pdev) {
                err = -ENOMEM;
                printk(KERN_ERR "pc87360: Device allocation failed\n");
                goto exit;
        }

        memset(res, 0, 3 * sizeof(struct resource));
        res_count = 0;
        for (i = 0; i < 3; i++) {
                if (!extra_isa[i])
                        continue;
                res[res_count].start = extra_isa[i];
                res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
                res[res_count].name = "pc87360",
                res[res_count].flags = IORESOURCE_IO,

                err = acpi_check_resource_conflict(&res[res_count]);
                if (err)
                        goto exit_device_put;

                res_count++;
        }

        err = platform_device_add_resources(pdev, res, res_count);
        if (err) {
                printk(KERN_ERR "pc87360: Device resources addition failed "
                       "(%d)\n", err);
                goto exit_device_put;
        }

        err = platform_device_add(pdev);
        if (err) {
                printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
                       err);
                goto exit_device_put;
        }

        return 0;

exit_device_put:
        platform_device_put(pdev);
exit:
        return err;
}

static int __init pc87360_init(void)
{
        int err, i;
        unsigned short address = 0;

        if (pc87360_find(0x2e, &devid, extra_isa)
         && pc87360_find(0x4e, &devid, extra_isa)) {
                printk(KERN_WARNING "pc87360: PC8736x not detected, "
                       "module not inserted.\n");
                return -ENODEV;
        }

        /* Arbitrarily pick one of the addresses */
        for (i = 0; i < 3; i++) {
                if (extra_isa[i] != 0x0000) {
                        address = extra_isa[i];
                        break;
                }
        }

        if (address == 0x0000) {
                printk(KERN_WARNING "pc87360: No active logical device, "
                       "module not inserted.\n");
                return -ENODEV;
        }

        err = platform_driver_register(&pc87360_driver);
        if (err)
                goto exit;

        /* Sets global pdev as a side effect */
        err = pc87360_device_add(address);
        if (err)
                goto exit_driver;

        return 0;

 exit_driver:
        platform_driver_unregister(&pc87360_driver);
 exit:
        return err;
}

static void __exit pc87360_exit(void)
{
        platform_device_unregister(pdev);
        platform_driver_unregister(&pc87360_driver);
}


MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
MODULE_DESCRIPTION("PC8736x hardware monitor");
MODULE_LICENSE("GPL");

module_init(pc87360_init);
module_exit(pc87360_exit);