// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
 *   Copyright (C) 2006 by Hans Edgington <hans@edgington.nl>              *
 *   Copyright (C) 2007-2011 Hans de Goede <hdegoede@redhat.com>           *
 *                                                                         *
 ***************************************************************************/

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#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/err.h>
#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/acpi.h>

#define DRVNAME "f71882fg"

#define SIO_F71858FG_LD_HWM	0x02	/* Hardware monitor logical device */
#define SIO_F71882FG_LD_HWM	0x04	/* Hardware monitor logical device */
#define SIO_UNLOCK_KEY		0x87	/* Key to enable Super-I/O */
#define SIO_LOCK_KEY		0xAA	/* Key to disable Super-I/O */

#define SIO_REG_LDSEL		0x07	/* Logical device select */
#define SIO_REG_DEVID		0x20	/* Device ID (2 bytes) */
#define SIO_REG_DEVREV		0x22	/* Device revision */
#define SIO_REG_MANID		0x23	/* Fintek ID (2 bytes) */
#define SIO_REG_ENABLE		0x30	/* Logical device enable */
#define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */

#define SIO_FINTEK_ID		0x1934	/* Manufacturers ID */
#define SIO_F71808E_ID		0x0901	/* Chipset ID */
#define SIO_F71808A_ID		0x1001	/* Chipset ID */
#define SIO_F71858_ID		0x0507  /* Chipset ID */
#define SIO_F71862_ID		0x0601	/* Chipset ID */
#define SIO_F71868_ID		0x1106	/* Chipset ID */
#define SIO_F71869_ID		0x0814	/* Chipset ID */
#define SIO_F71869A_ID		0x1007	/* Chipset ID */
#define SIO_F71882_ID		0x0541	/* Chipset ID */
#define SIO_F71889_ID		0x0723	/* Chipset ID */
#define SIO_F71889E_ID		0x0909	/* Chipset ID */
#define SIO_F71889A_ID		0x1005	/* Chipset ID */
#define SIO_F8000_ID		0x0581	/* Chipset ID */
#define SIO_F81768D_ID		0x1210	/* Chipset ID */
#define SIO_F81865_ID		0x0704	/* Chipset ID */
#define SIO_F81866_ID		0x1010	/* Chipset ID */
#define SIO_F71858AD_ID		0x0903	/* Chipset ID */
#define SIO_F81966_ID		0x1502	/* Chipset ID */

#define REGION_LENGTH		8
#define ADDR_REG_OFFSET		5
#define DATA_REG_OFFSET		6

#define F71882FG_REG_IN_STATUS		0x12 /* f7188x only */
#define F71882FG_REG_IN_BEEP		0x13 /* f7188x only */
#define F71882FG_REG_IN(nr)		(0x20  + (nr))
#define F71882FG_REG_IN1_HIGH		0x32 /* f7188x only */

#define F81866_REG_IN_STATUS		0x16 /* F81866 only */
#define F81866_REG_IN_BEEP			0x17 /* F81866 only */
#define F81866_REG_IN1_HIGH		0x3a /* F81866 only */

#define F71882FG_REG_FAN(nr)		(0xA0 + (16 * (nr)))
#define F71882FG_REG_FAN_TARGET(nr)	(0xA2 + (16 * (nr)))
#define F71882FG_REG_FAN_FULL_SPEED(nr)	(0xA4 + (16 * (nr)))
#define F71882FG_REG_FAN_STATUS		0x92
#define F71882FG_REG_FAN_BEEP		0x93

#define F71882FG_REG_TEMP(nr)		(0x70 + 2 * (nr))
#define F71882FG_REG_TEMP_OVT(nr)	(0x80 + 2 * (nr))
#define F71882FG_REG_TEMP_HIGH(nr)	(0x81 + 2 * (nr))
#define F71882FG_REG_TEMP_STATUS	0x62
#define F71882FG_REG_TEMP_BEEP		0x63
#define F71882FG_REG_TEMP_CONFIG	0x69
#define F71882FG_REG_TEMP_HYST(nr)	(0x6C + (nr))
#define F71882FG_REG_TEMP_TYPE		0x6B
#define F71882FG_REG_TEMP_DIODE_OPEN	0x6F

#define F71882FG_REG_PWM(nr)		(0xA3 + (16 * (nr)))
#define F71882FG_REG_PWM_TYPE		0x94
#define F71882FG_REG_PWM_ENABLE		0x96

#define F71882FG_REG_FAN_HYST(nr)	(0x98 + (nr))

#define F71882FG_REG_FAN_FAULT_T	0x9F
#define F71882FG_FAN_NEG_TEMP_EN	0x20
#define F71882FG_FAN_PROG_SEL		0x80

#define F71882FG_REG_POINT_PWM(pwm, point)	(0xAA + (point) + (16 * (pwm)))
#define F71882FG_REG_POINT_TEMP(pwm, point)	(0xA6 + (point) + (16 * (pwm)))
#define F71882FG_REG_POINT_MAPPING(nr)		(0xAF + 16 * (nr))

#define	F71882FG_REG_START		0x01

#define F71882FG_MAX_INS		11

#define FAN_MIN_DETECT			366 /* Lowest detectable fanspeed */

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

enum chips { f71808e, f71808a, f71858fg, f71862fg, f71868a, f71869, f71869a,
	f71882fg, f71889fg, f71889ed, f71889a, f8000, f81768d, f81865f,
	f81866a};

static const char *const f71882fg_names[] = {
	"f71808e",
	"f71808a",
	"f71858fg",
	"f71862fg",
	"f71868a",
	"f71869", /* Both f71869f and f71869e, reg. compatible and same id */
	"f71869a",
	"f71882fg",
	"f71889fg", /* f81801u too, same id */
	"f71889ed",
	"f71889a",
	"f8000",
	"f81768d",
	"f81865f",
	"f81866a",
};

static const char f71882fg_has_in[][F71882FG_MAX_INS] = {
	[f71808e]	= { 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0 },
	[f71808a]	= { 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0 },
	[f71858fg]	= { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
	[f71862fg]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f71868a]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
	[f71869]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f71869a]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f71882fg]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f71889fg]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f71889ed]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f71889a]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
	[f8000]		= { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
	[f81768d]	= { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
	[f81865f]	= { 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0 },
	[f81866a]	= { 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
};

static const char f71882fg_has_in1_alarm[] = {
	[f71808e]	= 0,
	[f71808a]	= 0,
	[f71858fg]	= 0,
	[f71862fg]	= 0,
	[f71868a]	= 0,
	[f71869]	= 0,
	[f71869a]	= 0,
	[f71882fg]	= 1,
	[f71889fg]	= 1,
	[f71889ed]	= 1,
	[f71889a]	= 1,
	[f8000]		= 0,
	[f81768d]	= 1,
	[f81865f]	= 1,
	[f81866a]	= 1,
};

static const char f71882fg_fan_has_beep[] = {
	[f71808e]	= 0,
	[f71808a]	= 0,
	[f71858fg]	= 0,
	[f71862fg]	= 1,
	[f71868a]	= 1,
	[f71869]	= 1,
	[f71869a]	= 1,
	[f71882fg]	= 1,
	[f71889fg]	= 1,
	[f71889ed]	= 1,
	[f71889a]	= 1,
	[f8000]		= 0,
	[f81768d]	= 1,
	[f81865f]	= 1,
	[f81866a]	= 1,
};

static const char f71882fg_nr_fans[] = {
	[f71808e]	= 3,
	[f71808a]	= 2, /* +1 fan which is monitor + simple pwm only */
	[f71858fg]	= 3,
	[f71862fg]	= 3,
	[f71868a]	= 3,
	[f71869]	= 3,
	[f71869a]	= 3,
	[f71882fg]	= 4,
	[f71889fg]	= 3,
	[f71889ed]	= 3,
	[f71889a]	= 3,
	[f8000]		= 3, /* +1 fan which is monitor only */
	[f81768d]	= 3,
	[f81865f]	= 2,
	[f81866a]	= 3,
};

static const char f71882fg_temp_has_beep[] = {
	[f71808e]	= 0,
	[f71808a]	= 1,
	[f71858fg]	= 0,
	[f71862fg]	= 1,
	[f71868a]	= 1,
	[f71869]	= 1,
	[f71869a]	= 1,
	[f71882fg]	= 1,
	[f71889fg]	= 1,
	[f71889ed]	= 1,
	[f71889a]	= 1,
	[f8000]		= 0,
	[f81768d]	= 1,
	[f81865f]	= 1,
	[f81866a]	= 1,
};

static const char f71882fg_nr_temps[] = {
	[f71808e]	= 2,
	[f71808a]	= 2,
	[f71858fg]	= 3,
	[f71862fg]	= 3,
	[f71868a]	= 3,
	[f71869]	= 3,
	[f71869a]	= 3,
	[f71882fg]	= 3,
	[f71889fg]	= 3,
	[f71889ed]	= 3,
	[f71889a]	= 3,
	[f8000]		= 3,
	[f81768d]	= 3,
	[f81865f]	= 2,
	[f81866a]	= 3,
};

static struct platform_device *f71882fg_pdev;

struct f71882fg_sio_data {
	enum chips type;
};

struct f71882fg_data {
	unsigned short addr;
	enum chips type;
	struct device *hwmon_dev;

	struct mutex update_lock;
	int temp_start;			/* temp numbering start (0 or 1) */
	bool valid;			/* true if following fields are valid */
	char auto_point_temp_signed;
	unsigned long last_updated;	/* In jiffies */
	unsigned long last_limits;	/* In jiffies */

	/* Register Values */
	u8	in[F71882FG_MAX_INS];
	u8	in1_max;
	u8	in_status;
	u8	in_beep;
	u16	fan[4];
	u16	fan_target[4];
	u16	fan_full_speed[4];
	u8	fan_status;
	u8	fan_beep;
	/*
	 * Note: all models have max 3 temperature channels, but on some
	 * they are addressed as 0-2 and on others as 1-3, so for coding
	 * convenience we reserve space for 4 channels
	 */
	u16	temp[4];
	u8	temp_ovt[4];
	u8	temp_high[4];
	u8	temp_hyst[2]; /* 2 hysts stored per reg */
	u8	temp_type[4];
	u8	temp_status;
	u8	temp_beep;
	u8	temp_diode_open;
	u8	temp_config;
	u8	pwm[4];
	u8	pwm_enable;
	u8	pwm_auto_point_hyst[2];
	u8	pwm_auto_point_mapping[4];
	u8	pwm_auto_point_pwm[4][5];
	s8	pwm_auto_point_temp[4][4];
};

static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg)
{
	u8 val;

	outb(reg, data->addr + ADDR_REG_OFFSET);
	val = inb(data->addr + DATA_REG_OFFSET);

	return val;
}

static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg)
{
	u16 val;

	val  = f71882fg_read8(data, reg) << 8;
	val |= f71882fg_read8(data, reg + 1);

	return val;
}

static inline int fan_from_reg(u16 reg)
{
	return reg ? (1500000 / reg) : 0;
}

static inline u16 fan_to_reg(int fan)
{
	return fan ? (1500000 / fan) : 0;
}

static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val)
{
	outb(reg, data->addr + ADDR_REG_OFFSET);
	outb(val, data->addr + DATA_REG_OFFSET);
}

static void f71882fg_write16(struct f71882fg_data *data, u8 reg, u16 val)
{
	f71882fg_write8(data, reg,     val >> 8);
	f71882fg_write8(data, reg + 1, val & 0xff);
}

static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr)
{
	if (data->type == f71858fg)
		return f71882fg_read16(data, F71882FG_REG_TEMP(nr));
	else
		return f71882fg_read8(data, F71882FG_REG_TEMP(nr));
}

static struct f71882fg_data *f71882fg_update_device(struct device *dev)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int nr_fans = f71882fg_nr_fans[data->type];
	int nr_temps = f71882fg_nr_temps[data->type];
	int nr, reg, point;

	mutex_lock(&data->update_lock);

	/* Update once every 60 seconds */
	if (time_after(jiffies, data->last_limits + 60 * HZ) ||
			!data->valid) {
		if (f71882fg_has_in1_alarm[data->type]) {
			if (data->type == f81866a) {
				data->in1_max =
					f71882fg_read8(data,
						       F81866_REG_IN1_HIGH);
				data->in_beep =
					f71882fg_read8(data,
						       F81866_REG_IN_BEEP);
			} else {
				data->in1_max =
					f71882fg_read8(data,
						       F71882FG_REG_IN1_HIGH);
				data->in_beep =
					f71882fg_read8(data,
						       F71882FG_REG_IN_BEEP);
			}
		}

		/* Get High & boundary temps*/
		for (nr = data->temp_start; nr < nr_temps + data->temp_start;
									nr++) {
			data->temp_ovt[nr] = f71882fg_read8(data,
						F71882FG_REG_TEMP_OVT(nr));
			data->temp_high[nr] = f71882fg_read8(data,
						F71882FG_REG_TEMP_HIGH(nr));
		}

		if (data->type != f8000) {
			data->temp_hyst[0] = f71882fg_read8(data,
						F71882FG_REG_TEMP_HYST(0));
			data->temp_hyst[1] = f71882fg_read8(data,
						F71882FG_REG_TEMP_HYST(1));
		}
		/* All but the f71858fg / f8000 have this register */
		if ((data->type != f71858fg) && (data->type != f8000)) {
			reg  = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
			data->temp_type[1] = (reg & 0x02) ? 2 : 4;
			data->temp_type[2] = (reg & 0x04) ? 2 : 4;
			data->temp_type[3] = (reg & 0x08) ? 2 : 4;
		}

		if (f71882fg_fan_has_beep[data->type])
			data->fan_beep = f71882fg_read8(data,
						F71882FG_REG_FAN_BEEP);

		if (f71882fg_temp_has_beep[data->type])
			data->temp_beep = f71882fg_read8(data,
						F71882FG_REG_TEMP_BEEP);

		data->pwm_enable = f71882fg_read8(data,
						  F71882FG_REG_PWM_ENABLE);
		data->pwm_auto_point_hyst[0] =
			f71882fg_read8(data, F71882FG_REG_FAN_HYST(0));
		data->pwm_auto_point_hyst[1] =
			f71882fg_read8(data, F71882FG_REG_FAN_HYST(1));

		for (nr = 0; nr < nr_fans; nr++) {
			data->pwm_auto_point_mapping[nr] =
			    f71882fg_read8(data,
					   F71882FG_REG_POINT_MAPPING(nr));

			switch (data->type) {
			default:
				for (point = 0; point < 5; point++) {
					data->pwm_auto_point_pwm[nr][point] =
						f71882fg_read8(data,
							F71882FG_REG_POINT_PWM
							(nr, point));
				}
				for (point = 0; point < 4; point++) {
					data->pwm_auto_point_temp[nr][point] =
						f71882fg_read8(data,
							F71882FG_REG_POINT_TEMP
							(nr, point));
				}
				break;
			case f71808e:
			case f71869:
				data->pwm_auto_point_pwm[nr][0] =
					f71882fg_read8(data,
						F71882FG_REG_POINT_PWM(nr, 0));
				fallthrough;
			case f71862fg:
				data->pwm_auto_point_pwm[nr][1] =
					f71882fg_read8(data,
						F71882FG_REG_POINT_PWM
						(nr, 1));
				data->pwm_auto_point_pwm[nr][4] =
					f71882fg_read8(data,
						F71882FG_REG_POINT_PWM
						(nr, 4));
				data->pwm_auto_point_temp[nr][0] =
					f71882fg_read8(data,
						F71882FG_REG_POINT_TEMP
						(nr, 0));
				data->pwm_auto_point_temp[nr][3] =
					f71882fg_read8(data,
						F71882FG_REG_POINT_TEMP
						(nr, 3));
				break;
			}
		}
		data->last_limits = jiffies;
	}

	/* Update every second */
	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
		data->temp_status = f71882fg_read8(data,
						F71882FG_REG_TEMP_STATUS);
		data->temp_diode_open = f71882fg_read8(data,
						F71882FG_REG_TEMP_DIODE_OPEN);
		for (nr = data->temp_start; nr < nr_temps + data->temp_start;
									nr++)
			data->temp[nr] = f71882fg_read_temp(data, nr);

		data->fan_status = f71882fg_read8(data,
						F71882FG_REG_FAN_STATUS);
		for (nr = 0; nr < nr_fans; nr++) {
			data->fan[nr] = f71882fg_read16(data,
						F71882FG_REG_FAN(nr));
			data->fan_target[nr] =
			    f71882fg_read16(data, F71882FG_REG_FAN_TARGET(nr));
			data->fan_full_speed[nr] =
			    f71882fg_read16(data,
					    F71882FG_REG_FAN_FULL_SPEED(nr));
			data->pwm[nr] =
			    f71882fg_read8(data, F71882FG_REG_PWM(nr));
		}
		/* Some models have 1 more fan with limited capabilities */
		if (data->type == f71808a) {
			data->fan[2] = f71882fg_read16(data,
						F71882FG_REG_FAN(2));
			data->pwm[2] = f71882fg_read8(data,
							F71882FG_REG_PWM(2));
		}
		if (data->type == f8000)
			data->fan[3] = f71882fg_read16(data,
						F71882FG_REG_FAN(3));

		if (f71882fg_has_in1_alarm[data->type]) {
			if (data->type == f81866a)
				data->in_status = f71882fg_read8(data,
						F81866_REG_IN_STATUS);

			else
				data->in_status = f71882fg_read8(data,
						F71882FG_REG_IN_STATUS);
		}

		for (nr = 0; nr < F71882FG_MAX_INS; nr++)
			if (f71882fg_has_in[data->type][nr])
				data->in[nr] = f71882fg_read8(data,
							F71882FG_REG_IN(nr));

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

	mutex_unlock(&data->update_lock);

	return data;
}

static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
	char *buf)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	return sprintf(buf, "%s\n", f71882fg_names[data->type]);
}

static DEVICE_ATTR_RO(name);

static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
	char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;
	int sign, temp;

	if (data->type == f71858fg) {
		/* TEMP_TABLE_SEL 1 or 3 ? */
		if (data->temp_config & 1) {
			sign = data->temp[nr] & 0x0001;
			temp = (data->temp[nr] >> 5) & 0x7ff;
		} else {
			sign = data->temp[nr] & 0x8000;
			temp = (data->temp[nr] >> 5) & 0x3ff;
		}
		temp *= 125;
		if (sign)
			temp -= 128000;
	} else {
		temp = ((s8)data->temp[nr]) * 1000;
	}

	return sprintf(buf, "%d\n", temp);
}

static ssize_t show_temp_max(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	return sprintf(buf, "%d\n", data->temp_high[nr] * 1000);
}

static ssize_t store_temp_max(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val /= 1000;
	val = clamp_val(val, 0, 255);

	mutex_lock(&data->update_lock);
	f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val);
	data->temp_high[nr] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;
	int temp_max_hyst;

	mutex_lock(&data->update_lock);
	if (nr & 1)
		temp_max_hyst = data->temp_hyst[nr / 2] >> 4;
	else
		temp_max_hyst = data->temp_hyst[nr / 2] & 0x0f;
	temp_max_hyst = (data->temp_high[nr] - temp_max_hyst) * 1000;
	mutex_unlock(&data->update_lock);

	return sprintf(buf, "%d\n", temp_max_hyst);
}

static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	ssize_t ret = count;
	u8 reg;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val /= 1000;

	mutex_lock(&data->update_lock);

	/* convert abs to relative and check */
	data->temp_high[nr] = f71882fg_read8(data, F71882FG_REG_TEMP_HIGH(nr));
	val = clamp_val(val, data->temp_high[nr] - 15, data->temp_high[nr]);
	val = data->temp_high[nr] - val;

	/* convert value to register contents */
	reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST(nr / 2));
	if (nr & 1)
		reg = (reg & 0x0f) | (val << 4);
	else
		reg = (reg & 0xf0) | val;
	f71882fg_write8(data, F71882FG_REG_TEMP_HYST(nr / 2), reg);
	data->temp_hyst[nr / 2] = reg;

	mutex_unlock(&data->update_lock);
	return ret;
}

static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->temp_status & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

static ssize_t show_temp_crit(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000);
}

static ssize_t store_temp_crit(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val /= 1000;
	val = clamp_val(val, 0, 255);

	mutex_lock(&data->update_lock);
	f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val);
	data->temp_ovt[nr] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;
	int temp_crit_hyst;

	mutex_lock(&data->update_lock);
	if (nr & 1)
		temp_crit_hyst = data->temp_hyst[nr / 2] >> 4;
	else
		temp_crit_hyst = data->temp_hyst[nr / 2] & 0x0f;
	temp_crit_hyst = (data->temp_ovt[nr] - temp_crit_hyst) * 1000;
	mutex_unlock(&data->update_lock);

	return sprintf(buf, "%d\n", temp_crit_hyst);
}

static ssize_t show_temp_fault(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->temp_diode_open & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

/*
 * Temp attr for the f71858fg, the f71858fg is special as it has its
 * temperature indexes start at 0 (the others start at 1)
 */
static struct sensor_device_attribute_2 f71858fg_temp_attr[] = {
	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
	SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 0),
	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
		store_temp_max_hyst, 0, 0),
	SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 0),
	SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 0),
	SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
		0, 0),
	SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
	SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
	SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 1),
	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
		store_temp_max_hyst, 0, 1),
	SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
	SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 1),
	SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
		0, 1),
	SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
	SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
	SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 2),
	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
		store_temp_max_hyst, 0, 2),
	SENSOR_ATTR_2(temp3_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
	SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 2),
	SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
		0, 2),
	SENSOR_ATTR_2(temp3_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
	SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
};

static ssize_t show_temp_type(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	return sprintf(buf, "%d\n", data->temp_type[nr]);
}

/* Temp attr for the standard models */
static struct sensor_device_attribute_2 fxxxx_temp_attr[3][9] = { {
	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 1),
	SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 1),
	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
		store_temp_max_hyst, 0, 1),
	/*
	 * Should really be temp1_max_alarm, but older versions did not handle
	 * the max and crit alarms separately and lm_sensors v2 depends on the
	 * presence of temp#_alarm files. The same goes for temp2/3 _alarm.
	 */
	SENSOR_ATTR_2(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
	SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 1),
	SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
		0, 1),
	SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
	SENSOR_ATTR_2(temp1_type, S_IRUGO, show_temp_type, NULL, 0, 1),
	SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
}, {
	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 2),
	SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 2),
	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
		store_temp_max_hyst, 0, 2),
	/* Should be temp2_max_alarm, see temp1_alarm note */
	SENSOR_ATTR_2(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
	SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 2),
	SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
		0, 2),
	SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
	SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 2),
	SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
}, {
	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 3),
	SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 3),
	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
		store_temp_max_hyst, 0, 3),
	/* Should be temp3_max_alarm, see temp1_alarm note */
	SENSOR_ATTR_2(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 3),
	SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 3),
	SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
		0, 3),
	SENSOR_ATTR_2(temp3_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 7),
	SENSOR_ATTR_2(temp3_type, S_IRUGO, show_temp_type, NULL, 0, 3),
	SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 3),
} };

static ssize_t show_temp_beep(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->temp_beep & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

static ssize_t store_temp_beep(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	unsigned long val;

	err = kstrtoul(buf, 10, &val);
	if (err)
		return err;

	mutex_lock(&data->update_lock);
	data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP);
	if (val)
		data->temp_beep |= 1 << nr;
	else
		data->temp_beep &= ~(1 << nr);

	f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep);
	mutex_unlock(&data->update_lock);

	return count;
}

/* Temp attr for models which can beep on temp alarm */
static struct sensor_device_attribute_2 fxxxx_temp_beep_attr[3][2] = { {
	SENSOR_ATTR_2(temp1_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 1),
	SENSOR_ATTR_2(temp1_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 5),
}, {
	SENSOR_ATTR_2(temp2_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 2),
	SENSOR_ATTR_2(temp2_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 6),
}, {
	SENSOR_ATTR_2(temp3_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 3),
	SENSOR_ATTR_2(temp3_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 7),
} };

static struct sensor_device_attribute_2 f81866_temp_beep_attr[3][2] = { {
	SENSOR_ATTR_2(temp1_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 0),
	SENSOR_ATTR_2(temp1_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 4),
}, {
	SENSOR_ATTR_2(temp2_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 1),
	SENSOR_ATTR_2(temp2_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 5),
}, {
	SENSOR_ATTR_2(temp3_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 2),
	SENSOR_ATTR_2(temp3_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
		store_temp_beep, 0, 6),
} };

/*
 * Temp attr for the f8000
 * Note on the f8000 temp_ovt (crit) is used as max, and temp_high (max)
 * is used as hysteresis value to clear alarms
 * Also like the f71858fg its temperature indexes start at 0
 */
static struct sensor_device_attribute_2 f8000_temp_attr[] = {
	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
	SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 0),
	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 0),
	SENSOR_ATTR_2(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
	SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
	SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 1),
	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 1),
	SENSOR_ATTR_2(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
	SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
	SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_crit,
		store_temp_crit, 0, 2),
	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
		store_temp_max, 0, 2),
	SENSOR_ATTR_2(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
	SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
};

static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
	char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	return sprintf(buf, "%d\n", data->in[nr] * 8);
}

/* in attr for all models */
static struct sensor_device_attribute_2 fxxxx_in_attr[] = {
	SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
	SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
	SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
	SENSOR_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 0, 3),
	SENSOR_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 0, 4),
	SENSOR_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 0, 5),
	SENSOR_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 0, 6),
	SENSOR_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 0, 7),
	SENSOR_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 0, 8),
	SENSOR_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 0, 9),
	SENSOR_ATTR_2(in10_input, S_IRUGO, show_in, NULL, 0, 10),
};

static ssize_t show_in_max(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);

	return sprintf(buf, "%d\n", data->in1_max * 8);
}

static ssize_t store_in_max(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val /= 8;
	val = clamp_val(val, 0, 255);

	mutex_lock(&data->update_lock);
	if (data->type == f81866a)
		f71882fg_write8(data, F81866_REG_IN1_HIGH, val);
	else
		f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
	data->in1_max = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_in_beep(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->in_beep & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

static ssize_t store_in_beep(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	unsigned long val;

	err = kstrtoul(buf, 10, &val);
	if (err)
		return err;

	mutex_lock(&data->update_lock);
	if (data->type == f81866a)
		data->in_beep = f71882fg_read8(data, F81866_REG_IN_BEEP);
	else
		data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);

	if (val)
		data->in_beep |= 1 << nr;
	else
		data->in_beep &= ~(1 << nr);

	if (data->type == f81866a)
		f71882fg_write8(data, F81866_REG_IN_BEEP, data->in_beep);
	else
		f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_in_alarm(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->in_status & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

/* For models with in1 alarm capability */
static struct sensor_device_attribute_2 fxxxx_in1_alarm_attr[] = {
	SENSOR_ATTR_2(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max,
		0, 1),
	SENSOR_ATTR_2(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep,
		0, 1),
	SENSOR_ATTR_2(in1_alarm, S_IRUGO, show_in_alarm, NULL, 0, 1),
};

static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
	char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;
	int speed = fan_from_reg(data->fan[nr]);

	if (speed == FAN_MIN_DETECT)
		speed = 0;

	return sprintf(buf, "%d\n", speed);
}

static ssize_t show_fan_full_speed(struct device *dev,
				   struct device_attribute *devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;
	int speed = fan_from_reg(data->fan_full_speed[nr]);
	return sprintf(buf, "%d\n", speed);
}

static ssize_t store_fan_full_speed(struct device *dev,
				    struct device_attribute *devattr,
				    const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val = clamp_val(val, 23, 1500000);
	val = fan_to_reg(val);

	mutex_lock(&data->update_lock);
	f71882fg_write16(data, F71882FG_REG_FAN_FULL_SPEED(nr), val);
	data->fan_full_speed[nr] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->fan_status & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

static ssize_t show_pwm(struct device *dev,
			struct device_attribute *devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int val, nr = to_sensor_dev_attr_2(devattr)->index;
	mutex_lock(&data->update_lock);
	if (data->pwm_enable & (1 << (2 * nr)))
		/* PWM mode */
		val = data->pwm[nr];
	else {
		/* RPM mode */
		val = 255 * fan_from_reg(data->fan_target[nr])
			/ fan_from_reg(data->fan_full_speed[nr]);
	}
	mutex_unlock(&data->update_lock);
	return sprintf(buf, "%d\n", val);
}

static ssize_t store_pwm(struct device *dev,
			 struct device_attribute *devattr, const char *buf,
			 size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val = clamp_val(val, 0, 255);

	mutex_lock(&data->update_lock);
	data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
	if ((data->type == f8000 && ((data->pwm_enable >> 2 * nr) & 3) != 2) ||
	    (data->type != f8000 && !((data->pwm_enable >> 2 * nr) & 2))) {
		count = -EROFS;
		goto leave;
	}
	if (data->pwm_enable & (1 << (2 * nr))) {
		/* PWM mode */
		f71882fg_write8(data, F71882FG_REG_PWM(nr), val);
		data->pwm[nr] = val;
	} else {
		/* RPM mode */
		int target, full_speed;
		full_speed = f71882fg_read16(data,
					     F71882FG_REG_FAN_FULL_SPEED(nr));
		target = fan_to_reg(val * fan_from_reg(full_speed) / 255);
		f71882fg_write16(data, F71882FG_REG_FAN_TARGET(nr), target);
		data->fan_target[nr] = target;
		data->fan_full_speed[nr] = full_speed;
	}
leave:
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_pwm_enable(struct device *dev,
			       struct device_attribute *devattr, char *buf)
{
	int result = 0;
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	switch ((data->pwm_enable >> 2 * nr) & 3) {
	case 0:
	case 1:
		result = 2; /* Normal auto mode */
		break;
	case 2:
		result = 1; /* Manual mode */
		break;
	case 3:
		if (data->type == f8000)
			result = 3; /* Thermostat mode */
		else
			result = 1; /* Manual mode */
		break;
	}

	return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_enable(struct device *dev, struct device_attribute
				*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	/* Special case for F8000 pwm channel 3 which only does auto mode */
	if (data->type == f8000 && nr == 2 && val != 2)
		return -EINVAL;

	mutex_lock(&data->update_lock);
	data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
	/* Special case for F8000 auto PWM mode / Thermostat mode */
	if (data->type == f8000 && ((data->pwm_enable >> 2 * nr) & 1)) {
		switch (val) {
		case 2:
			data->pwm_enable &= ~(2 << (2 * nr));
			break;		/* Normal auto mode */
		case 3:
			data->pwm_enable |= 2 << (2 * nr);
			break;		/* Thermostat mode */
		default:
			count = -EINVAL;
			goto leave;
		}
	} else {
		switch (val) {
		case 1:
			/* The f71858fg does not support manual RPM mode */
			if (data->type == f71858fg &&
			    ((data->pwm_enable >> (2 * nr)) & 1)) {
				count = -EINVAL;
				goto leave;
			}
			data->pwm_enable |= 2 << (2 * nr);
			break;		/* Manual */
		case 2:
			data->pwm_enable &= ~(2 << (2 * nr));
			break;		/* Normal auto mode */
		default:
			count = -EINVAL;
			goto leave;
		}
	}
	f71882fg_write8(data, F71882FG_REG_PWM_ENABLE, data->pwm_enable);
leave:
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_pwm_interpolate(struct device *dev,
				    struct device_attribute *devattr, char *buf)
{
	int result;
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	result = (data->pwm_auto_point_mapping[nr] >> 4) & 1;

	return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_interpolate(struct device *dev,
				     struct device_attribute *devattr,
				     const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	unsigned long val;

	err = kstrtoul(buf, 10, &val);
	if (err)
		return err;

	mutex_lock(&data->update_lock);
	data->pwm_auto_point_mapping[nr] =
		f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(nr));
	if (val)
		val = data->pwm_auto_point_mapping[nr] | (1 << 4);
	else
		val = data->pwm_auto_point_mapping[nr] & (~(1 << 4));
	f71882fg_write8(data, F71882FG_REG_POINT_MAPPING(nr), val);
	data->pwm_auto_point_mapping[nr] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

/* Fan / PWM attr common to all models */
static struct sensor_device_attribute_2 fxxxx_fan_attr[4][6] = { {
	SENSOR_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0),
	SENSOR_ATTR_2(fan1_full_speed, S_IRUGO|S_IWUSR,
		      show_fan_full_speed,
		      store_fan_full_speed, 0, 0),
	SENSOR_ATTR_2(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 0),
	SENSOR_ATTR_2(pwm1, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 0),
	SENSOR_ATTR_2(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
		      store_pwm_enable, 0, 0),
	SENSOR_ATTR_2(pwm1_interpolate, S_IRUGO|S_IWUSR,
		      show_pwm_interpolate, store_pwm_interpolate, 0, 0),
}, {
	SENSOR_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 0, 1),
	SENSOR_ATTR_2(fan2_full_speed, S_IRUGO|S_IWUSR,
		      show_fan_full_speed,
		      store_fan_full_speed, 0, 1),
	SENSOR_ATTR_2(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 1),
	SENSOR_ATTR_2(pwm2, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 1),
	SENSOR_ATTR_2(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
		      store_pwm_enable, 0, 1),
	SENSOR_ATTR_2(pwm2_interpolate, S_IRUGO|S_IWUSR,
		      show_pwm_interpolate, store_pwm_interpolate, 0, 1),
}, {
	SENSOR_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 0, 2),
	SENSOR_ATTR_2(fan3_full_speed, S_IRUGO|S_IWUSR,
		      show_fan_full_speed,
		      store_fan_full_speed, 0, 2),
	SENSOR_ATTR_2(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 2),
	SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 2),
	SENSOR_ATTR_2(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
		      store_pwm_enable, 0, 2),
	SENSOR_ATTR_2(pwm3_interpolate, S_IRUGO|S_IWUSR,
		      show_pwm_interpolate, store_pwm_interpolate, 0, 2),
}, {
	SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
	SENSOR_ATTR_2(fan4_full_speed, S_IRUGO|S_IWUSR,
		      show_fan_full_speed,
		      store_fan_full_speed, 0, 3),
	SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
	SENSOR_ATTR_2(pwm4, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 3),
	SENSOR_ATTR_2(pwm4_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
		      store_pwm_enable, 0, 3),
	SENSOR_ATTR_2(pwm4_interpolate, S_IRUGO|S_IWUSR,
		      show_pwm_interpolate, store_pwm_interpolate, 0, 3),
} };

static ssize_t show_simple_pwm(struct device *dev,
			       struct device_attribute *devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int val, nr = to_sensor_dev_attr_2(devattr)->index;

	val = data->pwm[nr];
	return sprintf(buf, "%d\n", val);
}

static ssize_t store_simple_pwm(struct device *dev,
				struct device_attribute *devattr,
				const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val = clamp_val(val, 0, 255);

	mutex_lock(&data->update_lock);
	f71882fg_write8(data, F71882FG_REG_PWM(nr), val);
	data->pwm[nr] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

/* Attr for the third fan of the f71808a, which only has manual pwm */
static struct sensor_device_attribute_2 f71808a_fan3_attr[] = {
	SENSOR_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 0, 2),
	SENSOR_ATTR_2(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 2),
	SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR,
		      show_simple_pwm, store_simple_pwm, 0, 2),
};

static ssize_t show_fan_beep(struct device *dev, struct device_attribute
	*devattr, char *buf)
{
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	if (data->fan_beep & (1 << nr))
		return sprintf(buf, "1\n");
	else
		return sprintf(buf, "0\n");
}

static ssize_t store_fan_beep(struct device *dev, struct device_attribute
	*devattr, const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	unsigned long val;

	err = kstrtoul(buf, 10, &val);
	if (err)
		return err;

	mutex_lock(&data->update_lock);
	data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP);
	if (val)
		data->fan_beep |= 1 << nr;
	else
		data->fan_beep &= ~(1 << nr);

	f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep);
	mutex_unlock(&data->update_lock);

	return count;
}

/* Attr for models which can beep on Fan alarm */
static struct sensor_device_attribute_2 fxxxx_fan_beep_attr[] = {
	SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
		store_fan_beep, 0, 0),
	SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
		store_fan_beep, 0, 1),
	SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
		store_fan_beep, 0, 2),
	SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
		store_fan_beep, 0, 3),
};

static ssize_t show_pwm_auto_point_channel(struct device *dev,
					   struct device_attribute *devattr,
					   char *buf)
{
	int result;
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;

	result = 1 << ((data->pwm_auto_point_mapping[nr] & 3) -
		       data->temp_start);

	return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_auto_point_channel(struct device *dev,
					    struct device_attribute *devattr,
					    const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	switch (val) {
	case 1:
		val = 0;
		break;
	case 2:
		val = 1;
		break;
	case 4:
		val = 2;
		break;
	default:
		return -EINVAL;
	}
	val += data->temp_start;
	mutex_lock(&data->update_lock);
	data->pwm_auto_point_mapping[nr] =
		f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(nr));
	val = (data->pwm_auto_point_mapping[nr] & 0xfc) | val;
	f71882fg_write8(data, F71882FG_REG_POINT_MAPPING(nr), val);
	data->pwm_auto_point_mapping[nr] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_pwm_auto_point_pwm(struct device *dev,
				       struct device_attribute *devattr,
				       char *buf)
{
	int result;
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int pwm = to_sensor_dev_attr_2(devattr)->index;
	int point = to_sensor_dev_attr_2(devattr)->nr;

	mutex_lock(&data->update_lock);
	if (data->pwm_enable & (1 << (2 * pwm))) {
		/* PWM mode */
		result = data->pwm_auto_point_pwm[pwm][point];
	} else {
		/* RPM mode */
		result = 32 * 255 / (32 + data->pwm_auto_point_pwm[pwm][point]);
	}
	mutex_unlock(&data->update_lock);

	return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_auto_point_pwm(struct device *dev,
					struct device_attribute *devattr,
					const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, pwm = to_sensor_dev_attr_2(devattr)->index;
	int point = to_sensor_dev_attr_2(devattr)->nr;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val = clamp_val(val, 0, 255);

	mutex_lock(&data->update_lock);
	data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
	if (data->pwm_enable & (1 << (2 * pwm))) {
		/* PWM mode */
	} else {
		/* RPM mode */
		if (val < 29)	/* Prevent negative numbers */
			val = 255;
		else
			val = (255 - val) * 32 / val;
	}
	f71882fg_write8(data, F71882FG_REG_POINT_PWM(pwm, point), val);
	data->pwm_auto_point_pwm[pwm][point] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_pwm_auto_point_temp(struct device *dev,
					struct device_attribute *devattr,
					char *buf)
{
	int result;
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int pwm = to_sensor_dev_attr_2(devattr)->index;
	int point = to_sensor_dev_attr_2(devattr)->nr;

	result = data->pwm_auto_point_temp[pwm][point];
	return sprintf(buf, "%d\n", 1000 * result);
}

static ssize_t store_pwm_auto_point_temp(struct device *dev,
					 struct device_attribute *devattr,
					 const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, pwm = to_sensor_dev_attr_2(devattr)->index;
	int point = to_sensor_dev_attr_2(devattr)->nr;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val /= 1000;

	if (data->auto_point_temp_signed)
		val = clamp_val(val, -128, 127);
	else
		val = clamp_val(val, 0, 127);

	mutex_lock(&data->update_lock);
	f71882fg_write8(data, F71882FG_REG_POINT_TEMP(pwm, point), val);
	data->pwm_auto_point_temp[pwm][point] = val;
	mutex_unlock(&data->update_lock);

	return count;
}

static ssize_t show_pwm_auto_point_temp_hyst(struct device *dev,
					     struct device_attribute *devattr,
					     char *buf)
{
	int result = 0;
	struct f71882fg_data *data = f71882fg_update_device(dev);
	int nr = to_sensor_dev_attr_2(devattr)->index;
	int point = to_sensor_dev_attr_2(devattr)->nr;

	mutex_lock(&data->update_lock);
	if (nr & 1)
		result = data->pwm_auto_point_hyst[nr / 2] >> 4;
	else
		result = data->pwm_auto_point_hyst[nr / 2] & 0x0f;
	result = 1000 * (data->pwm_auto_point_temp[nr][point] - result);
	mutex_unlock(&data->update_lock);

	return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_auto_point_temp_hyst(struct device *dev,
					      struct device_attribute *devattr,
					      const char *buf, size_t count)
{
	struct f71882fg_data *data = dev_get_drvdata(dev);
	int err, nr = to_sensor_dev_attr_2(devattr)->index;
	int point = to_sensor_dev_attr_2(devattr)->nr;
	u8 reg;
	long val;

	err = kstrtol(buf, 10, &val);
	if (err)
		return err;

	val /= 1000;

	mutex_lock(&data->update_lock);
	data->pwm_auto_point_temp[nr][point] =
		f71882fg_read8(data, F71882FG_REG_POINT_TEMP(nr, point));
	val = clamp_val(val, data->pwm_auto_point_temp[nr][point] - 15,
			data->pwm_auto_point_temp[nr][point]);
	val = data->pwm_auto_point_temp[nr][point] - val;

	reg = f71882fg_read8(data, F71882FG_REG_FAN_HYST(nr / 2));
	if (nr & 1)
		reg = (reg & 0x0f) | (val << 4);
	else
		reg = (reg & 0xf0) | val;

	f71882fg_write8(data, F71882FG_REG_FAN_HYST(nr / 2), reg);
	data->pwm_auto_point_hyst[nr / 2] = reg;
	mutex_unlock(&data->update_lock);

	return count;
}

/*
 * PWM attr for the f71862fg, fewer pwms and fewer zones per pwm than the
 * standard models
 */
static struct sensor_device_attribute_2 f71862fg_auto_pwm_attr[3][7] = { {
	SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
	SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 1),
}, {
	SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 2),
} };

/*
 * PWM attr for the f71808e/f71869, almost identical to the f71862fg, but the
 * pwm setting when the temperature is above the pwmX_auto_point1_temp can be
 * programmed instead of being hardcoded to 0xff
 */
static struct sensor_device_attribute_2 f71869_auto_pwm_attr[3][8] = { {
	SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 0),
	SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
	SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 1),
	SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 1),
}, {
	SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 2),
	SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 2),
} };

/* PWM attr for the standard models */
static struct sensor_device_attribute_2 fxxxx_auto_pwm_attr[4][14] = { {
	SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 0),
	SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 0),
	SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 0),
	SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 0),
	SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 0),
	SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 0),
	SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 0),
	SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 0),
	SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 0),
	SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
	SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 1),
	SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 1),
	SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 1),
	SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 1),
	SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 1),
	SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 1),
	SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 1),
	SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 1),
	SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 1),
	SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 1),
}, {
	SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 2),
	SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 2),
	SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 2),
	SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 2),
	SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 2),
	SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 2),
	SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 2),
	SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 2),
	SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 2),
	SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 2),
}, {
	SENSOR_ATTR_2(pwm4_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 3),
	SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 3),
	SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 3),
	SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 3),
	SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 3),
	SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 3),
	SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 3),
	SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 3),
	SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 3),
	SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 3),
	SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 3),
	SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 3),
	SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 3),
	SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 3),
} };

/* Fan attr specific to the f8000 (4th fan input can only measure speed) */
static struct sensor_device_attribute_2 f8000_fan_attr[] = {
	SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
};

/*
 * PWM attr for the f8000, zones mapped to temp instead of to pwm!
 * Also the register block at offset A0 maps to TEMP1 (so our temp2, as the
 * F8000 starts counting temps at 0), B0 maps the TEMP2 and C0 maps to TEMP0
 */
static struct sensor_device_attribute_2 f8000_auto_pwm_attr[3][14] = { {
	SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 0),
	SENSOR_ATTR_2(temp1_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 2),
	SENSOR_ATTR_2(temp1_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 2),
	SENSOR_ATTR_2(temp1_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 2),
	SENSOR_ATTR_2(temp1_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 2),
	SENSOR_ATTR_2(temp1_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 2),
	SENSOR_ATTR_2(temp1_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 2),
	SENSOR_ATTR_2(temp1_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 2),
	SENSOR_ATTR_2(temp1_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 2),
	SENSOR_ATTR_2(temp1_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 2),
	SENSOR_ATTR_2(temp1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 2),
	SENSOR_ATTR_2(temp1_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 2),
	SENSOR_ATTR_2(temp1_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 2),
	SENSOR_ATTR_2(temp1_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 2),
}, {
	SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 1),
	SENSOR_ATTR_2(temp2_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 0),
	SENSOR_ATTR_2(temp2_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 0),
	SENSOR_ATTR_2(temp2_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 0),
	SENSOR_ATTR_2(temp2_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 0),
	SENSOR_ATTR_2(temp2_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 0),
	SENSOR_ATTR_2(temp2_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 0),
	SENSOR_ATTR_2(temp2_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 0),
	SENSOR_ATTR_2(temp2_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 0),
	SENSOR_ATTR_2(temp2_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 0),
	SENSOR_ATTR_2(temp2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 0),
	SENSOR_ATTR_2(temp2_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 0),
	SENSOR_ATTR_2(temp2_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 0),
	SENSOR_ATTR_2(temp2_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
	SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_channel,
		      store_pwm_auto_point_channel, 0, 2),
	SENSOR_ATTR_2(temp3_auto_point1_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      0, 1),
	SENSOR_ATTR_2(temp3_auto_point2_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      1, 1),
	SENSOR_ATTR_2(temp3_auto_point3_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      2, 1),
	SENSOR_ATTR_2(temp3_auto_point4_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      3, 1),
	SENSOR_ATTR_2(temp3_auto_point5_pwm, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
		      4, 1),
	SENSOR_ATTR_2(temp3_auto_point1_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      0, 1),
	SENSOR_ATTR_2(temp3_auto_point2_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      1, 1),
	SENSOR_ATTR_2(temp3_auto_point3_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      2, 1),
	SENSOR_ATTR_2(temp3_auto_point4_temp, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp, store_pwm_auto_point_temp,
		      3, 1),
	SENSOR_ATTR_2(temp3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
		      show_pwm_auto_point_temp_hyst,
		      store_pwm_auto_point_temp_hyst,
		      0, 1),
	SENSOR_ATTR_2(temp3_auto_point2_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 1, 1),
	SENSOR_ATTR_2(temp3_auto_point3_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 2, 1),
	SENSOR_ATTR_2(temp3_auto_point4_temp_hyst, S_IRUGO,
		      show_pwm_auto_point_temp_hyst, NULL, 3, 1),
} };

/* Super I/O functions */
static inline int superio_inb(int base, int reg)
{
	outb(reg, base);
	return inb(base + 1);
}

static int superio_inw(int base, int reg)
{
	int val;
	val  = superio_inb(base, reg) << 8;
	val |= superio_inb(base, reg + 1);
	return val;
}

static inline int superio_enter(int base)
{
	/* Don't step on other drivers' I/O space by accident */
	if (!request_muxed_region(base, 2, DRVNAME)) {
		pr_err("I/O address 0x%04x already in use\n", base);
		return -EBUSY;
	}

	/* according to the datasheet the key must be send twice! */
	outb(SIO_UNLOCK_KEY, base);
	outb(SIO_UNLOCK_KEY, base);

	return 0;
}

static inline void superio_select(int base, int ld)
{
	outb(SIO_REG_LDSEL, base);
	outb(ld, base + 1);
}

static inline void superio_exit(int base)
{
	outb(SIO_LOCK_KEY, base);
	release_region(base, 2);
}

static int f71882fg_create_sysfs_files(struct platform_device *pdev,
	struct sensor_device_attribute_2 *attr, int count)
{
	int err, i;

	for (i = 0; i < count; i++) {
		err = device_create_file(&pdev->dev, &attr[i].dev_attr);
		if (err)
			return err;
	}
	return 0;
}

static void f71882fg_remove_sysfs_files(struct platform_device *pdev,
	struct sensor_device_attribute_2 *attr, int count)
{
	int i;

	for (i = 0; i < count; i++)
		device_remove_file(&pdev->dev, &attr[i].dev_attr);
}

static int f71882fg_create_fan_sysfs_files(
	struct platform_device *pdev, int idx)
{
	struct f71882fg_data *data = platform_get_drvdata(pdev);
	int err;

	/* Sanity check the pwm setting */
	err = 0;
	switch (data->type) {
	case f71858fg:
		if (((data->pwm_enable >> (idx * 2)) & 3) == 3)
			err = 1;
		break;
	case f71862fg:
		if (((data->pwm_enable >> (idx * 2)) & 1) != 1)
			err = 1;
		break;
	case f8000:
		if (idx == 2)
			err = data->pwm_enable & 0x20;
		break;
	default:
		break;
	}
	if (err) {
		dev_err(&pdev->dev,
			"Invalid (reserved) pwm settings: 0x%02x, "
			"skipping fan %d\n",
			(data->pwm_enable >> (idx * 2)) & 3, idx + 1);
		return 0; /* This is a non fatal condition */
	}

	err = f71882fg_create_sysfs_files(pdev, &fxxxx_fan_attr[idx][0],
					  ARRAY_SIZE(fxxxx_fan_attr[0]));
	if (err)
		return err;

	if (f71882fg_fan_has_beep[data->type]) {
		err = f71882fg_create_sysfs_files(pdev,
						  &fxxxx_fan_beep_attr[idx],
						  1);
		if (err)
			return err;
	}

	dev_info(&pdev->dev, "Fan: %d is in %s mode\n", idx + 1,
		 (data->pwm_enable & (1 << (2 * idx))) ? "duty-cycle" : "RPM");

	/* Check for unsupported auto pwm settings */
	switch (data->type) {
	case f71808e:
	case f71808a:
	case f71869:
	case f71869a:
	case f71889fg:
	case f71889ed:
	case f71889a:
		data->pwm_auto_point_mapping[idx] =
			f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(idx));
		if ((data->pwm_auto_point_mapping[idx] & 0x80) ||
		    (data->pwm_auto_point_mapping[idx] & 3) == 0) {
			dev_warn(&pdev->dev,
				 "Auto pwm controlled by raw digital "
				 "data, disabling pwm auto_point "
				 "sysfs attributes for fan %d\n", idx + 1);
			return 0; /* This is a non fatal condition */
		}
		break;
	default:
		break;
	}

	switch (data->type) {
	case f71862fg:
		err = f71882fg_create_sysfs_files(pdev,
					&f71862fg_auto_pwm_attr[idx][0],
					ARRAY_SIZE(f71862fg_auto_pwm_attr[0]));
		break;
	case f71808e:
	case f71869:
		err = f71882fg_create_sysfs_files(pdev,
					&f71869_auto_pwm_attr[idx][0],
					ARRAY_SIZE(f71869_auto_pwm_attr[0]));
		break;
	case f8000:
		err = f71882fg_create_sysfs_files(pdev,
					&f8000_auto_pwm_attr[idx][0],
					ARRAY_SIZE(f8000_auto_pwm_attr[0]));
		break;
	default:
		err = f71882fg_create_sysfs_files(pdev,
					&fxxxx_auto_pwm_attr[idx][0],
					ARRAY_SIZE(fxxxx_auto_pwm_attr[0]));
	}

	return err;
}

static int f71882fg_remove(struct platform_device *pdev)
{
	struct f71882fg_data *data = platform_get_drvdata(pdev);
	int nr_fans = f71882fg_nr_fans[data->type];
	int nr_temps = f71882fg_nr_temps[data->type];
	int i;
	u8 start_reg = f71882fg_read8(data, F71882FG_REG_START);

	if (data->hwmon_dev)
		hwmon_device_unregister(data->hwmon_dev);

	device_remove_file(&pdev->dev, &dev_attr_name);

	if (start_reg & 0x01) {
		switch (data->type) {
		case f71858fg:
			if (data->temp_config & 0x10)
				f71882fg_remove_sysfs_files(pdev,
					f8000_temp_attr,
					ARRAY_SIZE(f8000_temp_attr));
			else
				f71882fg_remove_sysfs_files(pdev,
					f71858fg_temp_attr,
					ARRAY_SIZE(f71858fg_temp_attr));
			break;
		case f8000:
			f71882fg_remove_sysfs_files(pdev,
					f8000_temp_attr,
					ARRAY_SIZE(f8000_temp_attr));
			break;
		case f81866a:
			f71882fg_remove_sysfs_files(pdev,
					f71858fg_temp_attr,
					ARRAY_SIZE(f71858fg_temp_attr));
			break;
		default:
			f71882fg_remove_sysfs_files(pdev,
				&fxxxx_temp_attr[0][0],
				ARRAY_SIZE(fxxxx_temp_attr[0]) * nr_temps);
		}
		if (f71882fg_temp_has_beep[data->type]) {
			if (data->type == f81866a)
				f71882fg_remove_sysfs_files(pdev,
					&f81866_temp_beep_attr[0][0],
					ARRAY_SIZE(f81866_temp_beep_attr[0])
						* nr_temps);
			else
				f71882fg_remove_sysfs_files(pdev,
					&fxxxx_temp_beep_attr[0][0],
					ARRAY_SIZE(fxxxx_temp_beep_attr[0])
						* nr_temps);
		}

		for (i = 0; i < F71882FG_MAX_INS; i++) {
			if (f71882fg_has_in[data->type][i]) {
				device_remove_file(&pdev->dev,
						&fxxxx_in_attr[i].dev_attr);
			}
		}
		if (f71882fg_has_in1_alarm[data->type]) {
			f71882fg_remove_sysfs_files(pdev,
					fxxxx_in1_alarm_attr,
					ARRAY_SIZE(fxxxx_in1_alarm_attr));
		}
	}

	if (start_reg & 0x02) {
		f71882fg_remove_sysfs_files(pdev, &fxxxx_fan_attr[0][0],
				ARRAY_SIZE(fxxxx_fan_attr[0]) * nr_fans);

		if (f71882fg_fan_has_beep[data->type]) {
			f71882fg_remove_sysfs_files(pdev,
					fxxxx_fan_beep_attr, nr_fans);
		}

		switch (data->type) {
		case f71808a:
			f71882fg_remove_sysfs_files(pdev,
				&fxxxx_auto_pwm_attr[0][0],
				ARRAY_SIZE(fxxxx_auto_pwm_attr[0]) * nr_fans);
			f71882fg_remove_sysfs_files(pdev,
					f71808a_fan3_attr,
					ARRAY_SIZE(f71808a_fan3_attr));
			break;
		case f71862fg:
			f71882fg_remove_sysfs_files(pdev,
				&f71862fg_auto_pwm_attr[0][0],
				ARRAY_SIZE(f71862fg_auto_pwm_attr[0]) *
					nr_fans);
			break;
		case f71808e:
		case f71869:
			f71882fg_remove_sysfs_files(pdev,
				&f71869_auto_pwm_attr[0][0],
				ARRAY_SIZE(f71869_auto_pwm_attr[0]) * nr_fans);
			break;
		case f8000:
			f71882fg_remove_sysfs_files(pdev,
					f8000_fan_attr,
					ARRAY_SIZE(f8000_fan_attr));
			f71882fg_remove_sysfs_files(pdev,
				&f8000_auto_pwm_attr[0][0],
				ARRAY_SIZE(f8000_auto_pwm_attr[0]) * nr_fans);
			break;
		default:
			f71882fg_remove_sysfs_files(pdev,
				&fxxxx_auto_pwm_attr[0][0],
				ARRAY_SIZE(fxxxx_auto_pwm_attr[0]) * nr_fans);
		}
	}
	return 0;
}

static int f71882fg_probe(struct platform_device *pdev)
{
	struct f71882fg_data *data;
	struct f71882fg_sio_data *sio_data = dev_get_platdata(&pdev->dev);
	int nr_fans = f71882fg_nr_fans[sio_data->type];
	int nr_temps = f71882fg_nr_temps[sio_data->type];
	int err, i;
	int size;
	u8 start_reg, reg;

	data = devm_kzalloc(&pdev->dev, sizeof(struct f71882fg_data),
			    GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
	data->type = sio_data->type;
	data->temp_start =
	    (data->type == f71858fg || data->type == f8000 ||
		data->type == f81866a) ? 0 : 1;
	mutex_init(&data->update_lock);
	platform_set_drvdata(pdev, data);

	start_reg = f71882fg_read8(data, F71882FG_REG_START);
	if (start_reg & 0x04) {
		dev_warn(&pdev->dev, "Hardware monitor is powered down\n");
		return -ENODEV;
	}
	if (!(start_reg & 0x03)) {
		dev_warn(&pdev->dev, "Hardware monitoring not activated\n");
		return -ENODEV;
	}

	/* Register sysfs interface files */
	err = device_create_file(&pdev->dev, &dev_attr_name);
	if (err)
		goto exit_unregister_sysfs;

	if (start_reg & 0x01) {
		switch (data->type) {
		case f71858fg:
			data->temp_config =
				f71882fg_read8(data, F71882FG_REG_TEMP_CONFIG);
			if (data->temp_config & 0x10)
				/*
				 * The f71858fg temperature alarms behave as
				 * the f8000 alarms in this mode
				 */
				err = f71882fg_create_sysfs_files(pdev,
					f8000_temp_attr,
					ARRAY_SIZE(f8000_temp_attr));
			else
				err = f71882fg_create_sysfs_files(pdev,
					f71858fg_temp_attr,
					ARRAY_SIZE(f71858fg_temp_attr));
			break;
		case f8000:
			err = f71882fg_create_sysfs_files(pdev,
					f8000_temp_attr,
					ARRAY_SIZE(f8000_temp_attr));
			break;
		case f81866a:
			err = f71882fg_create_sysfs_files(pdev,
					f71858fg_temp_attr,
					ARRAY_SIZE(f71858fg_temp_attr));
			break;
		default:
			err = f71882fg_create_sysfs_files(pdev,
				&fxxxx_temp_attr[0][0],
				ARRAY_SIZE(fxxxx_temp_attr[0]) * nr_temps);
		}
		if (err)
			goto exit_unregister_sysfs;

		if (f71882fg_temp_has_beep[data->type]) {
			if (data->type == f81866a) {
				size = ARRAY_SIZE(f81866_temp_beep_attr[0]);
				err = f71882fg_create_sysfs_files(pdev,
						&f81866_temp_beep_attr[0][0],
						size * nr_temps);

			} else {
				size = ARRAY_SIZE(fxxxx_temp_beep_attr[0]);
				err = f71882fg_create_sysfs_files(pdev,
						&fxxxx_temp_beep_attr[0][0],
						size * nr_temps);
			}
			if (err)
				goto exit_unregister_sysfs;
		}

		for (i = 0; i < F71882FG_MAX_INS; i++) {
			if (f71882fg_has_in[data->type][i]) {
				err = device_create_file(&pdev->dev,
						&fxxxx_in_attr[i].dev_attr);
				if (err)
					goto exit_unregister_sysfs;
			}
		}
		if (f71882fg_has_in1_alarm[data->type]) {
			err = f71882fg_create_sysfs_files(pdev,
					fxxxx_in1_alarm_attr,
					ARRAY_SIZE(fxxxx_in1_alarm_attr));
			if (err)
				goto exit_unregister_sysfs;
		}
	}

	if (start_reg & 0x02) {
		switch (data->type) {
		case f71808e:
		case f71808a:
		case f71869:
		case f71869a:
			/* These always have signed auto point temps */
			data->auto_point_temp_signed = 1;
			fallthrough;	/* to select correct fan/pwm reg bank! */
		case f71889fg:
		case f71889ed:
		case f71889a:
			reg = f71882fg_read8(data, F71882FG_REG_FAN_FAULT_T);
			if (reg & F71882FG_FAN_NEG_TEMP_EN)
				data->auto_point_temp_signed = 1;
			/* Ensure banked pwm registers point to right bank */
			reg &= ~F71882FG_FAN_PROG_SEL;
			f71882fg_write8(data, F71882FG_REG_FAN_FAULT_T, reg);
			break;
		default:
			break;
		}

		data->pwm_enable =
			f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);

		for (i = 0; i < nr_fans; i++) {
			err = f71882fg_create_fan_sysfs_files(pdev, i);
			if (err)
				goto exit_unregister_sysfs;
		}

		/* Some types have 1 extra fan with limited functionality */
		switch (data->type) {
		case f71808a:
			err = f71882fg_create_sysfs_files(pdev,
					f71808a_fan3_attr,
					ARRAY_SIZE(f71808a_fan3_attr));
			break;
		case f8000:
			err = f71882fg_create_sysfs_files(pdev,
					f8000_fan_attr,
					ARRAY_SIZE(f8000_fan_attr));
			break;
		default:
			break;
		}
		if (err)
			goto exit_unregister_sysfs;
	}

	data->hwmon_dev = hwmon_device_register(&pdev->dev);
	if (IS_ERR(data->hwmon_dev)) {
		err = PTR_ERR(data->hwmon_dev);
		data->hwmon_dev = NULL;
		goto exit_unregister_sysfs;
	}

	return 0;

exit_unregister_sysfs:
	f71882fg_remove(pdev); /* Will unregister the sysfs files for us */
	return err; /* f71882fg_remove() also frees our data */
}

static int __init f71882fg_find(int sioaddr, struct f71882fg_sio_data *sio_data)
{
	u16 devid;
	unsigned short address;
	int err = superio_enter(sioaddr);
	if (err)
		return err;

	devid = superio_inw(sioaddr, SIO_REG_MANID);
	if (devid != SIO_FINTEK_ID) {
		pr_debug("Not a Fintek device\n");
		err = -ENODEV;
		goto exit;
	}

	devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
	switch (devid) {
	case SIO_F71808E_ID:
		sio_data->type = f71808e;
		break;
	case SIO_F71808A_ID:
		sio_data->type = f71808a;
		break;
	case SIO_F71858_ID:
	case SIO_F71858AD_ID:
		sio_data->type = f71858fg;
		break;
	case SIO_F71862_ID:
		sio_data->type = f71862fg;
		break;
	case SIO_F71868_ID:
		sio_data->type = f71868a;
		break;
	case SIO_F71869_ID:
		sio_data->type = f71869;
		break;
	case SIO_F71869A_ID:
		sio_data->type = f71869a;
		break;
	case SIO_F71882_ID:
		sio_data->type = f71882fg;
		break;
	case SIO_F71889_ID:
		sio_data->type = f71889fg;
		break;
	case SIO_F71889E_ID:
		sio_data->type = f71889ed;
		break;
	case SIO_F71889A_ID:
		sio_data->type = f71889a;
		break;
	case SIO_F8000_ID:
		sio_data->type = f8000;
		break;
	case SIO_F81768D_ID:
		sio_data->type = f81768d;
		break;
	case SIO_F81865_ID:
		sio_data->type = f81865f;
		break;
	case SIO_F81866_ID:
	case SIO_F81966_ID:
		sio_data->type = f81866a;
		break;
	default:
		pr_info("Unsupported Fintek device: %04x\n",
			(unsigned int)devid);
		err = -ENODEV;
		goto exit;
	}

	if (sio_data->type == f71858fg)
		superio_select(sioaddr, SIO_F71858FG_LD_HWM);
	else
		superio_select(sioaddr, SIO_F71882FG_LD_HWM);

	if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
		pr_warn("Device not activated\n");
		err = -ENODEV;
		goto exit;
	}

	address = superio_inw(sioaddr, SIO_REG_ADDR);
	if (address == 0) {
		pr_warn("Base address not set\n");
		err = -ENODEV;
		goto exit;
	}
	address &= ~(REGION_LENGTH - 1);	/* Ignore 3 LSB */

	err = address;
	pr_info("Found %s chip at %#x, revision %d\n",
		f71882fg_names[sio_data->type],	(unsigned int)address,
		(int)superio_inb(sioaddr, SIO_REG_DEVREV));
exit:
	superio_exit(sioaddr);
	return err;
}

static int __init f71882fg_device_add(int address,
				      const struct f71882fg_sio_data *sio_data)
{
	struct resource res = {
		.start	= address,
		.end	= address + REGION_LENGTH - 1,
		.flags	= IORESOURCE_IO,
	};
	int err;

	f71882fg_pdev = platform_device_alloc(DRVNAME, address);
	if (!f71882fg_pdev)
		return -ENOMEM;

	res.name = f71882fg_pdev->name;
	err = acpi_check_resource_conflict(&res);
	if (err)
		goto exit_device_put;

	err = platform_device_add_resources(f71882fg_pdev, &res, 1);
	if (err) {
		pr_err("Device resource addition failed\n");
		goto exit_device_put;
	}

	err = platform_device_add_data(f71882fg_pdev, sio_data,
				       sizeof(struct f71882fg_sio_data));
	if (err) {
		pr_err("Platform data allocation failed\n");
		goto exit_device_put;
	}

	err = platform_device_add(f71882fg_pdev);
	if (err) {
		pr_err("Device addition failed\n");
		goto exit_device_put;
	}

	return 0;

exit_device_put:
	platform_device_put(f71882fg_pdev);

	return err;
}

static struct platform_driver f71882fg_driver = {
	.driver = {
		.name	= DRVNAME,
	},
	.probe		= f71882fg_probe,
	.remove		= f71882fg_remove,
};

static int __init f71882fg_init(void)
{
	int err;
	int address;
	struct f71882fg_sio_data sio_data;

	memset(&sio_data, 0, sizeof(sio_data));

	address = f71882fg_find(0x2e, &sio_data);
	if (address < 0)
		address = f71882fg_find(0x4e, &sio_data);
	if (address < 0)
		return address;

	err = platform_driver_register(&f71882fg_driver);
	if (err)
		return err;

	err = f71882fg_device_add(address, &sio_data);
	if (err)
		goto exit_driver;

	return 0;

exit_driver:
	platform_driver_unregister(&f71882fg_driver);
	return err;
}

static void __exit f71882fg_exit(void)
{
	platform_device_unregister(f71882fg_pdev);
	platform_driver_unregister(&f71882fg_driver);
}

MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver");
MODULE_AUTHOR("Hans Edgington, Hans de Goede <hdegoede@redhat.com>");
MODULE_LICENSE("GPL");

module_init(f71882fg_init);
module_exit(f71882fg_exit);