Initial import

1 files changed, 2008 insertions, 0 deletions

diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
new file mode 100644
index 000000000..721295b9a
--- /dev/null
+++ b/drivers/hwmon/w83627hf.c
@@ -0,0 +1,2008 @@
+/*
+ * w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
+ *		monitoring
+ * Copyright (c) 1998 - 2003  Frodo Looijaard <frodol@dds.nl>,
+ *			      Philip Edelbrock <phil@netroedge.com>,
+ *			      and Mark Studebaker <mdsxyz123@yahoo.com>
+ * Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
+ * Copyright (c) 2007 - 1012  Jean Delvare <jdelvare@suse.de>
+ *
+ * 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 following chips:
+ *
+ * Chip		#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+ * w83627hf	9	3	2	3	0x20	0x5ca3	no	yes(LPC)
+ * w83627thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
+ * w83637hf	7	3	3	3	0x80	0x5ca3	no	yes(LPC)
+ * w83687thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
+ * w83697hf	8	2	2	2	0x60	0x5ca3	no	yes(LPC)
+ *
+ * For other winbond chips, and for i2c support in the above chips,
+ * use w83781d.c.
+ *
+ * Note: automatic ("cruise") fan control for 697, 637 & 627thf not
+ * supported yet.
+ */
+
+#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/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/ioport.h>
+#include <linux/acpi.h>
+#include <linux/io.h>
+#include "lm75.h"
+
+static struct platform_device *pdev;
+
+#define DRVNAME "w83627hf"
+enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
+
+struct w83627hf_sio_data {
+	enum chips type;
+	int sioaddr;
+};
+
+static u8 force_i2c = 0x1f;
+module_param(force_i2c, byte, 0);
+MODULE_PARM_DESC(force_i2c,
+		 "Initialize the i2c address of the sensors");
+
+static bool init = 1;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+/* modified from kernel/include/traps.c */
+#define DEV			0x07 /* Register: Logical device select */
+
+/* logical device numbers for superio_select (below) */
+#define W83627HF_LD_FDC		0x00
+#define W83627HF_LD_PRT		0x01
+#define W83627HF_LD_UART1	0x02
+#define W83627HF_LD_UART2	0x03
+#define W83627HF_LD_KBC		0x05
+#define W83627HF_LD_CIR		0x06 /* w83627hf only */
+#define W83627HF_LD_GAME	0x07
+#define W83627HF_LD_MIDI	0x07
+#define W83627HF_LD_GPIO1	0x07
+#define W83627HF_LD_GPIO5	0x07 /* w83627thf only */
+#define W83627HF_LD_GPIO2	0x08
+#define W83627HF_LD_GPIO3	0x09
+#define W83627HF_LD_GPIO4	0x09 /* w83627thf only */
+#define W83627HF_LD_ACPI	0x0a
+#define W83627HF_LD_HWM		0x0b
+
+#define DEVID			0x20 /* Register: Device ID */
+
+#define W83627THF_GPIO5_EN	0x30 /* w83627thf only */
+#define W83627THF_GPIO5_IOSR	0xf3 /* w83627thf only */
+#define W83627THF_GPIO5_DR	0xf4 /* w83627thf only */
+
+#define W83687THF_VID_EN	0x29 /* w83687thf only */
+#define W83687THF_VID_CFG	0xF0 /* w83687thf only */
+#define W83687THF_VID_DATA	0xF1 /* w83687thf only */
+
+static inline void
+superio_outb(struct w83627hf_sio_data *sio, int reg, int val)
+{
+	outb(reg, sio->sioaddr);
+	outb(val, sio->sioaddr + 1);
+}
+
+static inline int
+superio_inb(struct w83627hf_sio_data *sio, int reg)
+{
+	outb(reg, sio->sioaddr);
+	return inb(sio->sioaddr + 1);
+}
+
+static inline void
+superio_select(struct w83627hf_sio_data *sio, int ld)
+{
+	outb(DEV, sio->sioaddr);
+	outb(ld,  sio->sioaddr + 1);
+}
+
+static inline void
+superio_enter(struct w83627hf_sio_data *sio)
+{
+	outb(0x87, sio->sioaddr);
+	outb(0x87, sio->sioaddr);
+}
+
+static inline void
+superio_exit(struct w83627hf_sio_data *sio)
+{
+	outb(0xAA, sio->sioaddr);
+}
+
+#define W627_DEVID 0x52
+#define W627THF_DEVID 0x82
+#define W697_DEVID 0x60
+#define W637_DEVID 0x70
+#define W687THF_DEVID 0x85
+#define WINB_ACT_REG 0x30
+#define WINB_BASE_REG 0x60
+/* Constants specified below */
+
+/* Alignment of the base address */
+#define WINB_ALIGNMENT		~7
+
+/* Offset & size of I/O region we are interested in */
+#define WINB_REGION_OFFSET	5
+#define WINB_REGION_SIZE	2
+
+/* Where are the sensors address/data registers relative to the region offset */
+#define W83781D_ADDR_REG_OFFSET 0
+#define W83781D_DATA_REG_OFFSET 1
+
+/* The W83781D registers */
+/* The W83782D registers for nr=7,8 are in bank 5 */
+#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
+					   (0x554 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
+					   (0x555 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
+					   (0x550 + (nr) - 7))
+
+/* nr:0-2 for fans:1-3 */
+#define W83627HF_REG_FAN_MIN(nr)	(0x3b + (nr))
+#define W83627HF_REG_FAN(nr)		(0x28 + (nr))
+
+#define W83627HF_REG_TEMP2_CONFIG 0x152
+#define W83627HF_REG_TEMP3_CONFIG 0x252
+/* these are zero-based, unlike config constants above */
+static const u16 w83627hf_reg_temp[]		= { 0x27, 0x150, 0x250 };
+static const u16 w83627hf_reg_temp_hyst[]	= { 0x3A, 0x153, 0x253 };
+static const u16 w83627hf_reg_temp_over[]	= { 0x39, 0x155, 0x255 };
+
+#define W83781D_REG_BANK 0x4E
+
+#define W83781D_REG_CONFIG 0x40
+#define W83781D_REG_ALARM1 0x459
+#define W83781D_REG_ALARM2 0x45A
+#define W83781D_REG_ALARM3 0x45B
+
+#define W83781D_REG_BEEP_CONFIG 0x4D
+#define W83781D_REG_BEEP_INTS1 0x56
+#define W83781D_REG_BEEP_INTS2 0x57
+#define W83781D_REG_BEEP_INTS3 0x453
+
+#define W83781D_REG_VID_FANDIV 0x47
+
+#define W83781D_REG_CHIPID 0x49
+#define W83781D_REG_WCHIPID 0x58
+#define W83781D_REG_CHIPMAN 0x4F
+#define W83781D_REG_PIN 0x4B
+
+#define W83781D_REG_VBAT 0x5D
+
+#define W83627HF_REG_PWM1 0x5A
+#define W83627HF_REG_PWM2 0x5B
+
+static const u8 W83627THF_REG_PWM_ENABLE[] = {
+	0x04,		/* FAN 1 mode */
+	0x04,		/* FAN 2 mode */
+	0x12,		/* FAN AUX mode */
+};
+static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };
+
+#define W83627THF_REG_PWM1		0x01	/* 697HF/637HF/687THF too */
+#define W83627THF_REG_PWM2		0x03	/* 697HF/637HF/687THF too */
+#define W83627THF_REG_PWM3		0x11	/* 637HF/687THF too */
+
+#define W83627THF_REG_VRM_OVT_CFG 	0x18	/* 637HF/687THF too */
+
+static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
+static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
+                             W83627THF_REG_PWM3 };
+#define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
+				    regpwm_627hf[nr] : regpwm[nr])
+
+#define W83627HF_REG_PWM_FREQ		0x5C	/* Only for the 627HF */
+
+#define W83637HF_REG_PWM_FREQ1		0x00	/* 697HF/687THF too */
+#define W83637HF_REG_PWM_FREQ2		0x02	/* 697HF/687THF too */
+#define W83637HF_REG_PWM_FREQ3		0x10	/* 687THF too */
+
+static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
+					W83637HF_REG_PWM_FREQ2,
+					W83637HF_REG_PWM_FREQ3 };
+
+#define W83627HF_BASE_PWM_FREQ	46870
+
+#define W83781D_REG_I2C_ADDR 0x48
+#define W83781D_REG_I2C_SUBADDR 0x4A
+
+/* Sensor selection */
+#define W83781D_REG_SCFG1 0x5D
+static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
+#define W83781D_REG_SCFG2 0x59
+static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
+#define W83781D_DEFAULT_BETA 3435
+
+/*
+ * Conversions. Limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ * Fixing this is just not worth it.
+ */
+#define IN_TO_REG(val)  (clamp_val((((val) + 8) / 16), 0, 255))
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = clamp_val(rpm, 1, 1000000);
+	return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+#define TEMP_MIN (-128000)
+#define TEMP_MAX ( 127000)
+
+/*
+ * TEMP: 0.001C/bit (-128C to +127C)
+ * REG: 1C/bit, two's complement
+ */
+static u8 TEMP_TO_REG(long temp)
+{
+	int ntemp = clamp_val(temp, TEMP_MIN, TEMP_MAX);
+	ntemp += (ntemp < 0 ? -500 : 500);
+	return (u8)(ntemp / 1000);
+}
+
+static int TEMP_FROM_REG(u8 reg)
+{
+        return (s8)reg * 1000;
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
+
+#define PWM_TO_REG(val) (clamp_val((val), 0, 255))
+
+static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
+{
+	unsigned long freq;
+	freq = W83627HF_BASE_PWM_FREQ >> reg;
+	return freq;
+}
+static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
+{
+	u8 i;
+	/*
+	 * Only 5 dividers (1 2 4 8 16)
+	 * Search for the nearest available frequency
+	 */
+	for (i = 0; i < 4; i++) {
+		if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
+			    (W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
+			break;
+	}
+	return i;
+}
+
+static inline unsigned long pwm_freq_from_reg(u8 reg)
+{
+	/* Clock bit 8 -> 180 kHz or 24 MHz */
+	unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
+
+	reg &= 0x7f;
+	/* This should not happen but anyway... */
+	if (reg == 0)
+		reg++;
+	return clock / (reg << 8);
+}
+static inline u8 pwm_freq_to_reg(unsigned long val)
+{
+	/* Minimum divider value is 0x01 and maximum is 0x7F */
+	if (val >= 93750)	/* The highest we can do */
+		return 0x01;
+	if (val >= 720)	/* Use 24 MHz clock */
+		return 24000000UL / (val << 8);
+	if (val < 6)		/* The lowest we can do */
+		return 0xFF;
+	else			/* Use 180 kHz clock */
+		return 0x80 | (180000UL / (val << 8));
+}
+
+#define BEEP_MASK_FROM_REG(val)		((val) & 0xff7fff)
+#define BEEP_MASK_TO_REG(val)		((val) & 0xff7fff)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static inline u8 DIV_TO_REG(long val)
+{
+	int i;
+	val = clamp_val(val, 1, 128) >> 1;
+	for (i = 0; i < 7; i++) {
+		if (val == 0)
+			break;
+		val >>= 1;
+	}
+	return (u8)i;
+}
+
+/*
+ * For each registered chip, we need to keep some data in memory.
+ * The structure is dynamically allocated.
+ */
+struct w83627hf_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+	struct mutex lock;
+	enum chips type;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[9];		/* Register value */
+	u8 in_max[9];		/* Register value */
+	u8 in_min[9];		/* Register value */
+	u8 fan[3];		/* Register value */
+	u8 fan_min[3];		/* Register value */
+	u16 temp[3];		/* Register value */
+	u16 temp_max[3];	/* Register value */
+	u16 temp_max_hyst[3];	/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
+	u8 vid;			/* Register encoding, combined */
+	u32 alarms;		/* Register encoding, combined */
+	u32 beep_mask;		/* Register encoding, combined */
+	u8 pwm[3];		/* Register value */
+	u8 pwm_enable[3];	/* 1 = manual
+				 * 2 = thermal cruise (also called SmartFan I)
+				 * 3 = fan speed cruise
+				 */
+	u8 pwm_freq[3];		/* Register value */
+	u16 sens[3];		/* 1 = pentium diode; 2 = 3904 diode;
+				 * 4 = thermistor
+				 */
+	u8 vrm;
+	u8 vrm_ovt;		/* Register value, 627THF/637HF/687THF only */
+
+#ifdef CONFIG_PM
+	/* Remember extra register values over suspend/resume */
+	u8 scfg1;
+	u8 scfg2;
+#endif
+};
+
+
+static int w83627hf_probe(struct platform_device *pdev);
+static int w83627hf_remove(struct platform_device *pdev);
+
+static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
+static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value);
+static void w83627hf_update_fan_div(struct w83627hf_data *data);
+static struct w83627hf_data *w83627hf_update_device(struct device *dev);
+static void w83627hf_init_device(struct platform_device *pdev);
+
+#ifdef CONFIG_PM
+static int w83627hf_suspend(struct device *dev)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	mutex_lock(&data->update_lock);
+	data->scfg1 = w83627hf_read_value(data, W83781D_REG_SCFG1);
+	data->scfg2 = w83627hf_read_value(data, W83781D_REG_SCFG2);
+	mutex_unlock(&data->update_lock);
+
+	return 0;
+}
+
+static int w83627hf_resume(struct device *dev)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	int i, num_temps = (data->type == w83697hf) ? 2 : 3;
+
+	/* Restore limits */
+	mutex_lock(&data->update_lock);
+	for (i = 0; i <= 8; i++) {
+		/* skip missing sensors */
+		if (((data->type == w83697hf) && (i == 1)) ||
+		    ((data->type != w83627hf && data->type != w83697hf)
+		    && (i == 5 || i == 6)))
+			continue;
+		w83627hf_write_value(data, W83781D_REG_IN_MAX(i),
+				     data->in_max[i]);
+		w83627hf_write_value(data, W83781D_REG_IN_MIN(i),
+				     data->in_min[i]);
+	}
+	for (i = 0; i <= 2; i++)
+		w83627hf_write_value(data, W83627HF_REG_FAN_MIN(i),
+				     data->fan_min[i]);
+	for (i = 0; i < num_temps; i++) {
+		w83627hf_write_value(data, w83627hf_reg_temp_over[i],
+				     data->temp_max[i]);
+		w83627hf_write_value(data, w83627hf_reg_temp_hyst[i],
+				     data->temp_max_hyst[i]);
+	}
+
+	/* Fixup BIOS bugs */
+	if (data->type == w83627thf || data->type == w83637hf ||
+	    data->type == w83687thf)
+		w83627hf_write_value(data, W83627THF_REG_VRM_OVT_CFG,
+				     data->vrm_ovt);
+	w83627hf_write_value(data, W83781D_REG_SCFG1, data->scfg1);
+	w83627hf_write_value(data, W83781D_REG_SCFG2, data->scfg2);
+
+	/* Force re-reading all values */
+	data->valid = 0;
+	mutex_unlock(&data->update_lock);
+
+	return 0;
+}
+
+static const struct dev_pm_ops w83627hf_dev_pm_ops = {
+	.suspend = w83627hf_suspend,
+	.resume = w83627hf_resume,
+};
+
+#define W83627HF_DEV_PM_OPS	(&w83627hf_dev_pm_ops)
+#else
+#define W83627HF_DEV_PM_OPS	NULL
+#endif /* CONFIG_PM */
+
+static struct platform_driver w83627hf_driver = {
+	.driver = {
+		.name	= DRVNAME,
+		.pm	= W83627HF_DEV_PM_OPS,
+	},
+	.probe		= w83627hf_probe,
+	.remove		= w83627hf_remove,
+};
+
+static ssize_t
+show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in[nr]));
+}
+static ssize_t
+show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_min[nr]));
+}
+static ssize_t
+show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_max[nr]));
+}
+static ssize_t
+store_in_min(struct device *dev, struct device_attribute *devattr,
+	     const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val);
+	w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t
+store_in_max(struct device *dev, struct device_attribute *devattr,
+	     const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val);
+	w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define sysfs_vin_decl(offset) \
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+			  show_in_input, NULL, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO|S_IWUSR,	\
+			  show_in_min, store_in_min, offset);	\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO|S_IWUSR,	\
+			  show_in_max, store_in_max, offset);
+
+sysfs_vin_decl(1);
+sysfs_vin_decl(2);
+sysfs_vin_decl(3);
+sysfs_vin_decl(4);
+sysfs_vin_decl(5);
+sysfs_vin_decl(6);
+sysfs_vin_decl(7);
+sysfs_vin_decl(8);
+
+/* use a different set of functions for in0 */
+static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
+{
+	long in0;
+
+	if ((data->vrm_ovt & 0x01) &&
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
+
+		/* use VRM9 calculation */
+		in0 = (long)((reg * 488 + 70000 + 50) / 100);
+	else
+		/* use VRM8 (standard) calculation */
+		in0 = (long)IN_FROM_REG(reg);
+
+	return sprintf(buf,"%ld\n", in0);
+}
+
+static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return show_in_0(data, buf, data->in[0]);
+}
+
+static ssize_t show_regs_in_min0(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return show_in_0(data, buf, data->in_min[0]);
+}
+
+static ssize_t show_regs_in_max0(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return show_in_0(data, buf, data->in_max[0]);
+}
+
+static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	
+	if ((data->vrm_ovt & 0x01) &&
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
+
+		/* use VRM9 calculation */
+		data->in_min[0] =
+			clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);
+	else
+		/* use VRM8 (standard) calculation */
+		data->in_min[0] = IN_TO_REG(val);
+
+	w83627hf_write_value(data, W83781D_REG_IN_MIN(0), data->in_min[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+
+	if ((data->vrm_ovt & 0x01) &&
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
+		
+		/* use VRM9 calculation */
+		data->in_max[0] =
+			clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);
+	else
+		/* use VRM8 (standard) calculation */
+		data->in_max[0] = IN_TO_REG(val);
+
+	w83627hf_write_value(data, W83781D_REG_IN_MAX(0), data->in_max[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
+static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
+	show_regs_in_min0, store_regs_in_min0);
+static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
+	show_regs_in_max0, store_regs_in_max0);
+
+static ssize_t
+show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan[nr],
+				(long)DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t
+show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan_min[nr],
+				(long)DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *devattr,
+	      const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),
+			     data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define sysfs_fan_decl(offset)	\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+			  show_fan_input, NULL, offset - 1);		\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+			  show_fan_min, store_fan_min, offset - 1);
+
+sysfs_fan_decl(1);
+sysfs_fan_decl(2);
+sysfs_fan_decl(3);
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	u16 tmp = data->temp[nr];
+	return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
+					  : (long) TEMP_FROM_REG(tmp));
+}
+
+static ssize_t
+show_temp_max(struct device *dev, struct device_attribute *devattr,
+	      char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	u16 tmp = data->temp_max[nr];
+	return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
+					  : (long) TEMP_FROM_REG(tmp));
+}
+
+static ssize_t
+show_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
+		   char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	u16 tmp = data->temp_max_hyst[nr];
+	return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
+					  : (long) TEMP_FROM_REG(tmp));
+}
+
+static ssize_t
+store_temp_max(struct device *dev, struct device_attribute *devattr,
+	       const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u16 tmp;
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
+
+	tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = tmp;
+	w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
+		    const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u16 tmp;
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return err;
+
+	tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
+	mutex_lock(&data->update_lock);
+	data->temp_max_hyst[nr] = tmp;
+	w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define sysfs_temp_decl(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+			  show_temp, NULL, offset - 1);			\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO|S_IWUSR,	 	\
+			  show_temp_max, store_temp_max, offset - 1);	\
+static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO|S_IWUSR,	\
+			  show_temp_max_hyst, store_temp_max_hyst, offset - 1);
+
+sysfs_temp_decl(1);
+sysfs_temp_decl(2);
+sysfs_temp_decl(3);
+
+static ssize_t
+show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t
+show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+static ssize_t
+store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	if (val > 255)
+		return -EINVAL;
+	data->vrm = val;
+
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t
+show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+static ssize_t
+show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
+
+static ssize_t
+show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n",
+		      (long)BEEP_MASK_FROM_REG(data->beep_mask));
+}
+
+static ssize_t
+store_beep_mask(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+
+	/* preserve beep enable */
+	data->beep_mask = (data->beep_mask & 0x8000)
+			| BEEP_MASK_TO_REG(val);
+	w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
+			    data->beep_mask & 0xff);
+	w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
+			    ((data->beep_mask) >> 16) & 0xff);
+	w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,
+			    (data->beep_mask >> 8) & 0xff);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+		   show_beep_mask, store_beep_mask);
+
+static ssize_t
+show_beep(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	u8 reg;
+	unsigned long bit;
+	int err;
+
+	err = kstrtoul(buf, 10, &bit);
+	if (err)
+		return err;
+
+	if (bit & ~1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	if (bit)
+		data->beep_mask |= (1 << bitnr);
+	else
+		data->beep_mask &= ~(1 << bitnr);
+
+	if (bitnr < 8) {
+		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
+		if (bit)
+			reg |= (1 << bitnr);
+		else
+			reg &= ~(1 << bitnr);
+		w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, reg);
+	} else if (bitnr < 16) {
+		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
+		if (bit)
+			reg |= (1 << (bitnr - 8));
+		else
+			reg &= ~(1 << (bitnr - 8));
+		w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, reg);
+	} else {
+		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
+		if (bit)
+			reg |= (1 << (bitnr - 16));
+		else
+			reg &= ~(1 << (bitnr - 16));
+		w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, reg);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 0);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 2);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 3);
+static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 8);
+static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 9);
+static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 10);
+static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 16);
+static SENSOR_DEVICE_ATTR(in8_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 17);
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 6);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 7);
+static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 11);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 4);
+static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 5);
+static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 13);
+static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 15);
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n",
+		       (long) DIV_FROM_REG(data->fan_div[nr]));
+}
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * determined in part by the fan divisor.  This follows the principle of
+ * least surprise; the user doesn't expect the fan minimum to change just
+ * because the divisor changed.
+ */
+static ssize_t
+store_fan_div(struct device *dev, struct device_attribute *devattr,
+	      const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long min;
+	u8 reg;
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+
+	/* Save fan_min */
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   DIV_FROM_REG(data->fan_div[nr]));
+
+	data->fan_div[nr] = DIV_TO_REG(val);
+
+	reg = (w83627hf_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+	       & (nr==0 ? 0xcf : 0x3f))
+	    | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
+	w83627hf_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+
+	reg = (w83627hf_read_value(data, W83781D_REG_VBAT)
+	       & ~(1 << (5 + nr)))
+	    | ((data->fan_div[nr] & 0x04) << (3 + nr));
+	w83627hf_write_value(data, W83781D_REG_VBAT, reg);
+
+	/* Restore fan_min */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO|S_IWUSR,
+			  show_fan_div, store_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO|S_IWUSR,
+			  show_fan_div, store_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO|S_IWUSR,
+			  show_fan_div, store_fan_div, 2);
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) data->pwm[nr]);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *devattr,
+	  const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+
+	if (data->type == w83627thf) {
+		/* bits 0-3 are reserved  in 627THF */
+		data->pwm[nr] = PWM_TO_REG(val) & 0xf0;
+		w83627hf_write_value(data,
+				     W836X7HF_REG_PWM(data->type, nr),
+				     data->pwm[nr] |
+				     (w83627hf_read_value(data,
+				     W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
+	} else {
+		data->pwm[nr] = PWM_TO_REG(val);
+		w83627hf_write_value(data,
+				     W836X7HF_REG_PWM(data->type, nr),
+				     data->pwm[nr]);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 2);
+
+static ssize_t
+show_pwm_enable(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_enable[nr]);
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *devattr,
+	  const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u8 reg;
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	if (!val || val > 3)	/* modes 1, 2 and 3 are supported */
+		return -EINVAL;
+	mutex_lock(&data->update_lock);
+	data->pwm_enable[nr] = val;
+	reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
+	reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
+	reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
+	w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+						  store_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+						  store_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+						  store_pwm_enable, 2);
+
+static ssize_t
+show_pwm_freq(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	if (data->type == w83627hf)
+		return sprintf(buf, "%ld\n",
+			pwm_freq_from_reg_627hf(data->pwm_freq[nr]));
+	else
+		return sprintf(buf, "%ld\n",
+			pwm_freq_from_reg(data->pwm_freq[nr]));
+}
+
+static ssize_t
+store_pwm_freq(struct device *dev, struct device_attribute *devattr,
+	       const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	static const u8 mask[]={0xF8, 0x8F};
+	unsigned long val;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+
+	if (data->type == w83627hf) {
+		data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);
+		w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,
+				(data->pwm_freq[nr] << (nr*4)) |
+				(w83627hf_read_value(data,
+				W83627HF_REG_PWM_FREQ) & mask[nr]));
+	} else {
+		data->pwm_freq[nr] = pwm_freq_to_reg(val);
+		w83627hf_write_value(data, W83637HF_REG_PWM_FREQ[nr],
+				data->pwm_freq[nr]);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO|S_IWUSR,
+			  show_pwm_freq, store_pwm_freq, 0);
+static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO|S_IWUSR,
+			  show_pwm_freq, store_pwm_freq, 1);
+static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO|S_IWUSR,
+			  show_pwm_freq, store_pwm_freq, 2);
+
+static ssize_t
+show_temp_type(struct device *dev, struct device_attribute *devattr,
+	       char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) data->sens[nr]);
+}
+
+static ssize_t
+store_temp_type(struct device *dev, struct device_attribute *devattr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	u32 tmp;
+	int err;
+
+	err = kstrtoul(buf, 10, &val);
+	if (err)
+		return err;
+
+	mutex_lock(&data->update_lock);
+
+	switch (val) {
+	case 1:		/* PII/Celeron diode */
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+		w83627hf_write_value(data, W83781D_REG_SCFG1,
+				    tmp | BIT_SCFG1[nr]);
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
+		w83627hf_write_value(data, W83781D_REG_SCFG2,
+				    tmp | BIT_SCFG2[nr]);
+		data->sens[nr] = val;
+		break;
+	case 2:		/* 3904 */
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+		w83627hf_write_value(data, W83781D_REG_SCFG1,
+				    tmp | BIT_SCFG1[nr]);
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
+		w83627hf_write_value(data, W83781D_REG_SCFG2,
+				    tmp & ~BIT_SCFG2[nr]);
+		data->sens[nr] = val;
+		break;
+	case W83781D_DEFAULT_BETA:
+		dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
+			 "instead\n", W83781D_DEFAULT_BETA);
+		/* fall through */
+	case 4:		/* thermistor */
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+		w83627hf_write_value(data, W83781D_REG_SCFG1,
+				    tmp & ~BIT_SCFG1[nr]);
+		data->sens[nr] = val;
+		break;
+	default:
+		dev_err(dev,
+		       "Invalid sensor type %ld; must be 1, 2, or 4\n",
+		       (long) val);
+		break;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define sysfs_temp_type(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
+			  show_temp_type, store_temp_type, offset - 1);
+
+sysfs_temp_type(1);
+sysfs_temp_type(2);
+sysfs_temp_type(3);
+
+static ssize_t
+show_name(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static int __init w83627hf_find(int sioaddr, unsigned short *addr,
+				struct w83627hf_sio_data *sio_data)
+{
+	int err = -ENODEV;
+	u16 val;
+
+	static __initconst char *const names[] = {
+		"W83627HF",
+		"W83627THF",
+		"W83697HF",
+		"W83637HF",
+		"W83687THF",
+	};
+
+	sio_data->sioaddr = sioaddr;
+	superio_enter(sio_data);
+	val = force_id ? force_id : superio_inb(sio_data, DEVID);
+	switch (val) {
+	case W627_DEVID:
+		sio_data->type = w83627hf;
+		break;
+	case W627THF_DEVID:
+		sio_data->type = w83627thf;
+		break;
+	case W697_DEVID:
+		sio_data->type = w83697hf;
+		break;
+	case W637_DEVID:
+		sio_data->type = w83637hf;
+		break;
+	case W687THF_DEVID:
+		sio_data->type = w83687thf;
+		break;
+	case 0xff:	/* No device at all */
+		goto exit;
+	default:
+		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
+		goto exit;
+	}
+
+	superio_select(sio_data, W83627HF_LD_HWM);
+	val = (superio_inb(sio_data, WINB_BASE_REG) << 8) |
+	       superio_inb(sio_data, WINB_BASE_REG + 1);
+	*addr = val & WINB_ALIGNMENT;
+	if (*addr == 0) {
+		pr_warn("Base address not set, skipping\n");
+		goto exit;
+	}
+
+	val = superio_inb(sio_data, WINB_ACT_REG);
+	if (!(val & 0x01)) {
+		pr_warn("Enabling HWM logical device\n");
+		superio_outb(sio_data, WINB_ACT_REG, val | 0x01);
+	}
+
+	err = 0;
+	pr_info(DRVNAME ": Found %s chip at %#x\n",
+		names[sio_data->type], *addr);
+
+ exit:
+	superio_exit(sio_data);
+	return err;
+}
+
+#define VIN_UNIT_ATTRS(_X_)	\
+	&sensor_dev_attr_in##_X_##_input.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_min.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_max.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_alarm.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_beep.dev_attr.attr
+
+#define FAN_UNIT_ATTRS(_X_)	\
+	&sensor_dev_attr_fan##_X_##_input.dev_attr.attr,	\
+	&sensor_dev_attr_fan##_X_##_min.dev_attr.attr,		\
+	&sensor_dev_attr_fan##_X_##_div.dev_attr.attr,		\
+	&sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr,	\
+	&sensor_dev_attr_fan##_X_##_beep.dev_attr.attr
+
+#define TEMP_UNIT_ATTRS(_X_)	\
+	&sensor_dev_attr_temp##_X_##_input.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_max.dev_attr.attr,		\
+	&sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_type.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_beep.dev_attr.attr
+
+static struct attribute *w83627hf_attributes[] = {
+	&dev_attr_in0_input.attr,
+	&dev_attr_in0_min.attr,
+	&dev_attr_in0_max.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in0_beep.dev_attr.attr,
+	VIN_UNIT_ATTRS(2),
+	VIN_UNIT_ATTRS(3),
+	VIN_UNIT_ATTRS(4),
+	VIN_UNIT_ATTRS(7),
+	VIN_UNIT_ATTRS(8),
+
+	FAN_UNIT_ATTRS(1),
+	FAN_UNIT_ATTRS(2),
+
+	TEMP_UNIT_ATTRS(1),
+	TEMP_UNIT_ATTRS(2),
+
+	&dev_attr_alarms.attr,
+	&sensor_dev_attr_beep_enable.dev_attr.attr,
+	&dev_attr_beep_mask.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group w83627hf_group = {
+	.attrs = w83627hf_attributes,
+};
+
+static struct attribute *w83627hf_attributes_opt[] = {
+	VIN_UNIT_ATTRS(1),
+	VIN_UNIT_ATTRS(5),
+	VIN_UNIT_ATTRS(6),
+
+	FAN_UNIT_ATTRS(3),
+	TEMP_UNIT_ATTRS(3),
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+
+	NULL
+};
+
+static const struct attribute_group w83627hf_group_opt = {
+	.attrs = w83627hf_attributes_opt,
+};
+
+static int w83627hf_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct w83627hf_sio_data *sio_data = dev_get_platdata(dev);
+	struct w83627hf_data *data;
+	struct resource *res;
+	int err, i;
+
+	static const char *names[] = {
+		"w83627hf",
+		"w83627thf",
+		"w83697hf",
+		"w83637hf",
+		"w83687thf",
+	};
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!devm_request_region(dev, res->start, WINB_REGION_SIZE, DRVNAME)) {
+		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)res->start,
+			(unsigned long)(res->start + WINB_REGION_SIZE - 1));
+		return -EBUSY;
+	}
+
+	data = devm_kzalloc(dev, sizeof(struct w83627hf_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->addr = res->start;
+	data->type = sio_data->type;
+	data->name = names[sio_data->type];
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	/* Initialize the chip */
+	w83627hf_init_device(pdev);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i <= 2; i++)
+		data->fan_min[i] = w83627hf_read_value(
+					data, W83627HF_REG_FAN_MIN(i));
+	w83627hf_update_fan_div(data);
+
+	/* Register common device attributes */
+	err = sysfs_create_group(&dev->kobj, &w83627hf_group);
+	if (err)
+		return err;
+
+	/* Register chip-specific device attributes */
+	if (data->type == w83627hf || data->type == w83697hf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_in5_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_freq.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_freq.dev_attr)))
+			goto error;
+
+	if (data->type != w83697hf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_in1_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_div.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_max_hyst.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_type.dev_attr)))
+			goto error;
+
+	if (data->type != w83697hf && data->vid != 0xff) {
+		/* Convert VID to voltage based on VRM */
+		data->vrm = vid_which_vrm();
+
+		if ((err = device_create_file(dev, &dev_attr_cpu0_vid))
+		 || (err = device_create_file(dev, &dev_attr_vrm)))
+			goto error;
+	}
+
+	if (data->type == w83627thf || data->type == w83637hf
+	    || data->type == w83687thf) {
+		err = device_create_file(dev, &sensor_dev_attr_pwm3.dev_attr);
+		if (err)
+			goto error;
+	}
+
+	if (data->type == w83637hf || data->type == w83687thf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_freq.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_freq.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm3_freq.dev_attr)))
+			goto error;
+
+	if (data->type != w83627hf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_enable.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_enable.dev_attr)))
+			goto error;
+
+	if (data->type == w83627thf || data->type == w83637hf
+	    || data->type == w83687thf) {
+		err = device_create_file(dev,
+					 &sensor_dev_attr_pwm3_enable.dev_attr);
+		if (err)
+			goto error;
+	}
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto error;
+	}
+
+	return 0;
+
+ error:
+	sysfs_remove_group(&dev->kobj, &w83627hf_group);
+	sysfs_remove_group(&dev->kobj, &w83627hf_group_opt);
+	return err;
+}
+
+static int w83627hf_remove(struct platform_device *pdev)
+{
+	struct w83627hf_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group);
+	sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group_opt);
+
+	return 0;
+}
+
+
+/* Registers 0x50-0x5f are banked */
+static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
+{
+	if ((reg & 0x00f0) == 0x50) {
+		outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(reg >> 8, data->addr + W83781D_DATA_REG_OFFSET);
+	}
+}
+
+/* Not strictly necessary, but play it safe for now */
+static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
+{
+	if (reg & 0xff00) {
+		outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(0, data->addr + W83781D_DATA_REG_OFFSET);
+	}
+}
+
+static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)
+{
+	int res, word_sized;
+
+	mutex_lock(&data->lock);
+	word_sized = (((reg & 0xff00) == 0x100)
+		   || ((reg & 0xff00) == 0x200))
+		  && (((reg & 0x00ff) == 0x50)
+		   || ((reg & 0x00ff) == 0x53)
+		   || ((reg & 0x00ff) == 0x55));
+	w83627hf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
+	res = inb_p(data->addr + W83781D_DATA_REG_OFFSET);
+	if (word_sized) {
+		outb_p((reg & 0xff) + 1,
+		       data->addr + W83781D_ADDR_REG_OFFSET);
+		res =
+		    (res << 8) + inb_p(data->addr +
+				       W83781D_DATA_REG_OFFSET);
+	}
+	w83627hf_reset_bank(data, reg);
+	mutex_unlock(&data->lock);
+	return res;
+}
+
+static int w83627thf_read_gpio5(struct platform_device *pdev)
+{
+	struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev);
+	int res = 0xff, sel;
+
+	superio_enter(sio_data);
+	superio_select(sio_data, W83627HF_LD_GPIO5);
+
+	/* Make sure these GPIO pins are enabled */
+	if (!(superio_inb(sio_data, W83627THF_GPIO5_EN) & (1<<3))) {
+		dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n");
+		goto exit;
+	}
+
+	/*
+	 * Make sure the pins are configured for input
+	 * There must be at least five (VRM 9), and possibly 6 (VRM 10)
+	 */
+	sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f;
+	if ((sel & 0x1f) != 0x1f) {
+		dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
+			"function\n");
+		goto exit;
+	}
+
+	dev_info(&pdev->dev, "Reading VID from GPIO5\n");
+	res = superio_inb(sio_data, W83627THF_GPIO5_DR) & sel;
+
+exit:
+	superio_exit(sio_data);
+	return res;
+}
+
+static int w83687thf_read_vid(struct platform_device *pdev)
+{
+	struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev);
+	int res = 0xff;
+
+	superio_enter(sio_data);
+	superio_select(sio_data, W83627HF_LD_HWM);
+
+	/* Make sure these GPIO pins are enabled */
+	if (!(superio_inb(sio_data, W83687THF_VID_EN) & (1 << 2))) {
+		dev_dbg(&pdev->dev, "VID disabled, no VID function\n");
+		goto exit;
+	}
+
+	/* Make sure the pins are configured for input */
+	if (!(superio_inb(sio_data, W83687THF_VID_CFG) & (1 << 4))) {
+		dev_dbg(&pdev->dev, "VID configured as output, "
+			"no VID function\n");
+		goto exit;
+	}
+
+	res = superio_inb(sio_data, W83687THF_VID_DATA) & 0x3f;
+
+exit:
+	superio_exit(sio_data);
+	return res;
+}
+
+static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value)
+{
+	int word_sized;
+
+	mutex_lock(&data->lock);
+	word_sized = (((reg & 0xff00) == 0x100)
+		   || ((reg & 0xff00) == 0x200))
+		  && (((reg & 0x00ff) == 0x53)
+		   || ((reg & 0x00ff) == 0x55));
+	w83627hf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
+	if (word_sized) {
+		outb_p(value >> 8,
+		       data->addr + W83781D_DATA_REG_OFFSET);
+		outb_p((reg & 0xff) + 1,
+		       data->addr + W83781D_ADDR_REG_OFFSET);
+	}
+	outb_p(value & 0xff,
+	       data->addr + W83781D_DATA_REG_OFFSET);
+	w83627hf_reset_bank(data, reg);
+	mutex_unlock(&data->lock);
+	return 0;
+}
+
+static void w83627hf_init_device(struct platform_device *pdev)
+{
+	struct w83627hf_data *data = platform_get_drvdata(pdev);
+	int i;
+	enum chips type = data->type;
+	u8 tmp;
+
+	/* Minimize conflicts with other winbond i2c-only clients...  */
+	/* disable i2c subclients... how to disable main i2c client?? */
+	/* force i2c address to relatively uncommon address */
+	if (type == w83627hf) {
+		w83627hf_write_value(data, W83781D_REG_I2C_SUBADDR, 0x89);
+		w83627hf_write_value(data, W83781D_REG_I2C_ADDR, force_i2c);
+	}
+
+	/* Read VID only once */
+	if (type == w83627hf || type == w83637hf) {
+		int lo = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
+		int hi = w83627hf_read_value(data, W83781D_REG_CHIPID);
+		data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
+	} else if (type == w83627thf) {
+		data->vid = w83627thf_read_gpio5(pdev);
+	} else if (type == w83687thf) {
+		data->vid = w83687thf_read_vid(pdev);
+	}
+
+	/* Read VRM & OVT Config only once */
+	if (type == w83627thf || type == w83637hf || type == w83687thf) {
+		data->vrm_ovt = 
+			w83627hf_read_value(data, W83627THF_REG_VRM_OVT_CFG);
+	}
+
+	tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+	for (i = 1; i <= 3; i++) {
+		if (!(tmp & BIT_SCFG1[i - 1])) {
+			data->sens[i - 1] = 4;
+		} else {
+			if (w83627hf_read_value
+			    (data,
+			     W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
+				data->sens[i - 1] = 1;
+			else
+				data->sens[i - 1] = 2;
+		}
+		if ((type == w83697hf) && (i == 2))
+			break;
+	}
+
+	if(init) {
+		/* Enable temp2 */
+		tmp = w83627hf_read_value(data, W83627HF_REG_TEMP2_CONFIG);
+		if (tmp & 0x01) {
+			dev_warn(&pdev->dev, "Enabling temp2, readings "
+				 "might not make sense\n");
+			w83627hf_write_value(data, W83627HF_REG_TEMP2_CONFIG,
+				tmp & 0xfe);
+		}
+
+		/* Enable temp3 */
+		if (type != w83697hf) {
+			tmp = w83627hf_read_value(data,
+				W83627HF_REG_TEMP3_CONFIG);
+			if (tmp & 0x01) {
+				dev_warn(&pdev->dev, "Enabling temp3, "
+					 "readings might not make sense\n");
+				w83627hf_write_value(data,
+					W83627HF_REG_TEMP3_CONFIG, tmp & 0xfe);
+			}
+		}
+	}
+
+	/* Start monitoring */
+	w83627hf_write_value(data, W83781D_REG_CONFIG,
+			    (w83627hf_read_value(data,
+						W83781D_REG_CONFIG) & 0xf7)
+			    | 0x01);
+
+	/* Enable VBAT monitoring if needed */
+	tmp = w83627hf_read_value(data, W83781D_REG_VBAT);
+	if (!(tmp & 0x01))
+		w83627hf_write_value(data, W83781D_REG_VBAT, tmp | 0x01);
+}
+
+static void w83627hf_update_fan_div(struct w83627hf_data *data)
+{
+	int reg;
+
+	reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
+	data->fan_div[0] = (reg >> 4) & 0x03;
+	data->fan_div[1] = (reg >> 6) & 0x03;
+	if (data->type != w83697hf) {
+		data->fan_div[2] = (w83627hf_read_value(data,
+				       W83781D_REG_PIN) >> 6) & 0x03;
+	}
+	reg = w83627hf_read_value(data, W83781D_REG_VBAT);
+	data->fan_div[0] |= (reg >> 3) & 0x04;
+	data->fan_div[1] |= (reg >> 4) & 0x04;
+	if (data->type != w83697hf)
+		data->fan_div[2] |= (reg >> 5) & 0x04;
+}
+
+static struct w83627hf_data *w83627hf_update_device(struct device *dev)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	int i, num_temps = (data->type == w83697hf) ? 2 : 3;
+	int num_pwms = (data->type == w83697hf) ? 2 : 3;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		for (i = 0; i <= 8; i++) {
+			/* skip missing sensors */
+			if (((data->type == w83697hf) && (i == 1)) ||
+			    ((data->type != w83627hf && data->type != w83697hf)
+			    && (i == 5 || i == 6)))
+				continue;
+			data->in[i] =
+			    w83627hf_read_value(data, W83781D_REG_IN(i));
+			data->in_min[i] =
+			    w83627hf_read_value(data,
+					       W83781D_REG_IN_MIN(i));
+			data->in_max[i] =
+			    w83627hf_read_value(data,
+					       W83781D_REG_IN_MAX(i));
+		}
+		for (i = 0; i <= 2; i++) {
+			data->fan[i] =
+			    w83627hf_read_value(data, W83627HF_REG_FAN(i));
+			data->fan_min[i] =
+			    w83627hf_read_value(data,
+					       W83627HF_REG_FAN_MIN(i));
+		}
+		for (i = 0; i <= 2; i++) {
+			u8 tmp = w83627hf_read_value(data,
+				W836X7HF_REG_PWM(data->type, i));
+ 			/* bits 0-3 are reserved  in 627THF */
+ 			if (data->type == w83627thf)
+				tmp &= 0xf0;
+			data->pwm[i] = tmp;
+			if (i == 1 &&
+			    (data->type == w83627hf || data->type == w83697hf))
+				break;
+		}
+		if (data->type == w83627hf) {
+				u8 tmp = w83627hf_read_value(data,
+						W83627HF_REG_PWM_FREQ);
+				data->pwm_freq[0] = tmp & 0x07;
+				data->pwm_freq[1] = (tmp >> 4) & 0x07;
+		} else if (data->type != w83627thf) {
+			for (i = 1; i <= 3; i++) {
+				data->pwm_freq[i - 1] =
+					w83627hf_read_value(data,
+						W83637HF_REG_PWM_FREQ[i - 1]);
+				if (i == 2 && (data->type == w83697hf))
+					break;
+			}
+		}
+		if (data->type != w83627hf) {
+			for (i = 0; i < num_pwms; i++) {
+				u8 tmp = w83627hf_read_value(data,
+					W83627THF_REG_PWM_ENABLE[i]);
+				data->pwm_enable[i] =
+					((tmp >> W83627THF_PWM_ENABLE_SHIFT[i])
+					& 0x03) + 1;
+			}
+		}
+		for (i = 0; i < num_temps; i++) {
+			data->temp[i] = w83627hf_read_value(
+						data, w83627hf_reg_temp[i]);
+			data->temp_max[i] = w83627hf_read_value(
+						data, w83627hf_reg_temp_over[i]);
+			data->temp_max_hyst[i] = w83627hf_read_value(
+						data, w83627hf_reg_temp_hyst[i]);
+		}
+
+		w83627hf_update_fan_div(data);
+
+		data->alarms =
+		    w83627hf_read_value(data, W83781D_REG_ALARM1) |
+		    (w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
+		    (w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
+		i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
+		data->beep_mask = (i << 8) |
+		    w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
+		    w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init w83627hf_device_add(unsigned short address,
+				      const struct w83627hf_sio_data *sio_data)
+{
+	struct resource res = {
+		.start	= address + WINB_REGION_OFFSET,
+		.end	= address + WINB_REGION_OFFSET + WINB_REGION_SIZE - 1,
+		.name	= DRVNAME,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	err = acpi_check_resource_conflict(&res);
+	if (err)
+		goto exit;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		pr_err("Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		pr_err("Device resource addition failed (%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add_data(pdev, sio_data,
+				       sizeof(struct w83627hf_sio_data));
+	if (err) {
+		pr_err("Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		pr_err("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 sensors_w83627hf_init(void)
+{
+	int err;
+	unsigned short address;
+	struct w83627hf_sio_data sio_data;
+
+	if (w83627hf_find(0x2e, &address, &sio_data)
+	 && w83627hf_find(0x4e, &address, &sio_data))
+		return -ENODEV;
+
+	err = platform_driver_register(&w83627hf_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = w83627hf_device_add(address, &sio_data);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&w83627hf_driver);
+exit:
+	return err;
+}
+
+static void __exit sensors_w83627hf_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&w83627hf_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+	      "Philip Edelbrock <phil@netroedge.com>, "
+	      "and Mark Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("W83627HF driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83627hf_init);
+module_exit(sensors_w83627hf_exit);