[PATCH] I2C fixes for 2.6.10-rc2

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ChangeSet 1.2223.2.7, 2004/11/24 14:34:25-08:00, jthiessen at penguincomputing.com

[PATCH] I2C: add adm1026 chip driver

Here is the revised adm1026 driver port for kernel 2.6.10-rc2.  It takes into
account Jean Delvare's and Mark Hoffman's comments and recommendations, and
provides pretty much the entire feature set of the 2.4.X kernel driver, but
in (hopefully) a manner compliant with the standards for the 2.6.X kernel
lm_sensors drivers.

As discussed in previous messages, control over the pwm output is provided
via:

pwm[1-3]                  {0-255}
pwm[1-3]_enable           {0-2}  (off, manual, automatic fan control)

Note that there is really only one pwm register and one enable bit.  pwm[2-3]
and pwm[2-3]_enable are provided for the sake of a chip-indpendent interface,
and are simply RW mirrors of pwm1 and pwm1_enable, respectively.

Access to the DAC is provided via:

analog_out            {0-2500} (millivolts)

No way is currently provided to turn on DAC-mediated automatic fan control.
See my previous email in this thread for the reasons why.

Control over automatic fan "on" temperatures are provided by:

temp[1-3]_auto_point1_temp     {-128000 - 127000}

Hardware-determined hysteresis and range values are revealed in:

temp[1-3]_auto_point1_temp_hyst   {temp[1-3]_auto_point1_temp - 6000}
temp[1-3]_auto_point2_temp        {temp[1-3]_auto_point1_temp + 20000}

Failsafe critical temperatures at which the fans go to maximum speed are
controled via:

temp[1-3]_crit_enable       {0-1}                 (off, on)
temp[1-3]_crit              {-128000 - 127000}

Again, there is really only one "enable critical-temperature-fan-maximization"
bit.  temp[2-3]_crit_enable are simply RW mirrors of temp1_crit_enable

These values override any values set for the pwm-mediated automatic fan
control.

VRM is now set via Rudolf Marek's functions.  VID is read from the assumed
correct set of pins (GPIO11-GPIO15), and no longer a user-writable field.

In keeping with Greg KH's changes,

normal_i2c_range
normal_isa_range

have been removed,

and

normal_i2c

has been updated to enumerate all addresses.  (Just adding 0x2d)

Finally, the val-comparison-before-assignment bug has been corrected.

Signed-off-by: Justin Thiessen <jthiessen at penguincomputing.com>
Signed-off-by: Greg Kroah-Hartman <greg at kroah.com>


 drivers/i2c/chips/Kconfig   |    9 
 drivers/i2c/chips/Makefile  |    1 
 drivers/i2c/chips/adm1026.c | 1779 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1789 insertions(+)


diff -Nru a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
--- a/drivers/i2c/chips/Kconfig	2004-11-30 16:00:54 -08:00
+++ b/drivers/i2c/chips/Kconfig	2004-11-30 16:00:54 -08:00
@@ -32,6 +32,15 @@
 	  This driver can also be built as a module.  If so, the module
 	  will be called adm1025.
 
+config SENSORS_ADM1026
+	tristate "Analog Devices ADM1026 and compatibles"
+	depends on I2C && EXPERIMENTAL
+	select I2C_SENSOR
+	help
+	  If you say yes here you get support for Analog Devices ADM1026
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm1026.
+
 config SENSORS_ADM1031
 	tristate "Analog Devices ADM1031 and compatibles"
 	depends on I2C && EXPERIMENTAL
diff -Nru a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
--- a/drivers/i2c/chips/Makefile	2004-11-30 16:00:54 -08:00
+++ b/drivers/i2c/chips/Makefile	2004-11-30 16:00:54 -08:00
@@ -9,6 +9,7 @@
 
 obj-$(CONFIG_SENSORS_ADM1021)	+= adm1021.o
 obj-$(CONFIG_SENSORS_ADM1025)	+= adm1025.o
+obj-$(CONFIG_SENSORS_ADM1026)	+= adm1026.o
 obj-$(CONFIG_SENSORS_ADM1031)	+= adm1031.o
 obj-$(CONFIG_SENSORS_DS1621)	+= ds1621.o
 obj-$(CONFIG_SENSORS_EEPROM)	+= eeprom.o
diff -Nru a/drivers/i2c/chips/adm1026.c b/drivers/i2c/chips/adm1026.c
--- /dev/null	Wed Dec 31 16:00:00 196900
+++ b/drivers/i2c/chips/adm1026.c	2004-11-30 16:00:54 -08:00
@@ -0,0 +1,1779 @@
+/*
+    adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
+	     monitoring
+    Copyright (C) 2002, 2003  Philip Pokorny <ppokorny at penguincomputing.com>
+    Copyright (C) 2004 Justin Thiessen <jthiessen at penguincomputing.com>
+
+    Chip details at:
+
+    <http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c-sensor.h>
+#include <linux/i2c-vid.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_1(adm1026);
+
+static int gpio_input[17]  = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 }; 
+static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
+module_param_array(gpio_input,int,NULL,0);
+MODULE_PARM_DESC(gpio_input,"List of GPIO pins (0-16) to program as inputs");
+module_param_array(gpio_output,int,NULL,0);
+MODULE_PARM_DESC(gpio_output,"List of GPIO pins (0-16) to program as "
+	"outputs");
+module_param_array(gpio_inverted,int,NULL,0);
+MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as "
+	"inverted");
+module_param_array(gpio_normal,int,NULL,0);
+MODULE_PARM_DESC(gpio_normal,"List of GPIO pins (0-16) to program as "
+	"normal/non-inverted");
+module_param_array(gpio_fan,int,NULL,0);
+MODULE_PARM_DESC(gpio_fan,"List of GPIO pins (0-7) to program as fan tachs");
+
+/* Many ADM1026 constants specified below */
+
+/* The ADM1026 registers */
+#define ADM1026_REG_CONFIG1  0x00
+#define CFG1_MONITOR     0x01
+#define CFG1_INT_ENABLE  0x02
+#define CFG1_INT_CLEAR   0x04
+#define CFG1_AIN8_9      0x08
+#define CFG1_THERM_HOT   0x10
+#define CFG1_DAC_AFC     0x20
+#define CFG1_PWM_AFC     0x40
+#define CFG1_RESET       0x80
+#define ADM1026_REG_CONFIG2  0x01
+/* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
+#define ADM1026_REG_CONFIG3  0x07
+#define CFG3_GPIO16_ENABLE  0x01
+#define CFG3_CI_CLEAR  0x02
+#define CFG3_VREF_250  0x04
+#define CFG3_GPIO16_DIR  0x40
+#define CFG3_GPIO16_POL  0x80
+#define ADM1026_REG_E2CONFIG  0x13
+#define E2CFG_READ  0x01
+#define E2CFG_WRITE  0x02
+#define E2CFG_ERASE  0x04
+#define E2CFG_ROM  0x08
+#define E2CFG_CLK_EXT  0x80
+
+/* There are 10 general analog inputs and 7 dedicated inputs
+ * They are:
+ *    0 - 9  =  AIN0 - AIN9
+ *       10  =  Vbat
+ *       11  =  3.3V Standby
+ *       12  =  3.3V Main
+ *       13  =  +5V
+ *       14  =  Vccp (CPU core voltage)
+ *       15  =  +12V
+ *       16  =  -12V
+ */
+static u16 ADM1026_REG_IN[] = {
+		0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
+		0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
+		0x2b, 0x2c, 0x2d, 0x2e, 0x2f
+	};
+static u16 ADM1026_REG_IN_MIN[] = {
+		0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
+		0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
+		0x4b, 0x4c, 0x4d, 0x4e, 0x4f
+	};
+static u16 ADM1026_REG_IN_MAX[] = {
+		0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
+		0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
+		0x43, 0x44, 0x45, 0x46, 0x47
+	};
+
+/* Temperatures are:
+ *    0 - Internal
+ *    1 - External 1
+ *    2 - External 2
+ */
+static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
+static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
+static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
+static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
+static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
+static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
+
+#define ADM1026_REG_FAN(nr) (0x38 + (nr))
+#define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
+#define ADM1026_REG_FAN_DIV_0_3 0x02
+#define ADM1026_REG_FAN_DIV_4_7 0x03
+
+#define ADM1026_REG_DAC  0x04
+#define ADM1026_REG_PWM  0x05
+
+#define ADM1026_REG_GPIO_CFG_0_3 0x08
+#define ADM1026_REG_GPIO_CFG_4_7 0x09
+#define ADM1026_REG_GPIO_CFG_8_11 0x0a
+#define ADM1026_REG_GPIO_CFG_12_15 0x0b
+/* CFG_16 in REG_CFG3 */
+#define ADM1026_REG_GPIO_STATUS_0_7 0x24
+#define ADM1026_REG_GPIO_STATUS_8_15 0x25
+/* STATUS_16 in REG_STATUS4 */
+#define ADM1026_REG_GPIO_MASK_0_7 0x1c
+#define ADM1026_REG_GPIO_MASK_8_15 0x1d
+/* MASK_16 in REG_MASK4 */
+
+#define ADM1026_REG_COMPANY 0x16
+#define ADM1026_REG_VERSTEP 0x17
+/* These are the recognized values for the above regs */
+#define ADM1026_COMPANY_ANALOG_DEV 0x41
+#define ADM1026_VERSTEP_GENERIC 0x40
+#define ADM1026_VERSTEP_ADM1026 0x44
+
+#define ADM1026_REG_MASK1 0x18
+#define ADM1026_REG_MASK2 0x19
+#define ADM1026_REG_MASK3 0x1a
+#define ADM1026_REG_MASK4 0x1b
+
+#define ADM1026_REG_STATUS1 0x20
+#define ADM1026_REG_STATUS2 0x21
+#define ADM1026_REG_STATUS3 0x22
+#define ADM1026_REG_STATUS4 0x23
+
+#define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
+#define ADM1026_FAN_CONTROL_TEMP_RANGE 20
+#define ADM1026_PWM_MAX 255
+
+/* Conversions. Rounding and 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.
+ */
+
+/* IN are scaled acording to built-in resistors.  These are the
+ *   voltages corresponding to 3/4 of full scale (192 or 0xc0)
+ *   NOTE: The -12V input needs an additional factor to account
+ *      for the Vref pullup resistor.
+ *      NEG12_OFFSET = SCALE * Vref / V-192 - Vref
+ *                   = 13875 * 2.50 / 1.875 - 2500
+ *                   = 16000
+ *
+ * The values in this table are based on Table II, page 15 of the
+ *    datasheet.
+ */
+static int adm1026_scaling[] = {  /* .001 Volts */
+		2250, 2250, 2250, 2250, 2250, 2250, 
+		1875, 1875, 1875, 1875, 3000, 3330, 
+		3330, 4995, 2250, 12000, 13875
+	};
+#define NEG12_OFFSET  16000
+#define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
+#define INS_TO_REG(n,val)  (SENSORS_LIMIT(SCALE(val,adm1026_scaling[n],192),\
+	0,255))
+#define INS_FROM_REG(n,val) (SCALE(val,192,adm1026_scaling[n]))
+
+/* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
+ *   and we assume a 2 pulse-per-rev fan tach signal
+ *      22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
+ */
+#define FAN_TO_REG(val,div)  ((val)<=0 ? 0xff : SENSORS_LIMIT(1350000/((val)*\
+	(div)),1,254)) 
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*\
+	(div)))
+#define DIV_FROM_REG(val) (1<<(val))
+#define DIV_TO_REG(val) ((val)>=8 ? 3 : (val)>=4 ? 2 : (val)>=2 ? 1 : 0)
+
+/* Temperature is reported in 1 degC increments */
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
+	-127,127))
+#define TEMP_FROM_REG(val) ((val) * 1000)
+#define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
+	-127,127))
+#define OFFSET_FROM_REG(val) ((val) * 1000)
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
+#define PWM_FROM_REG(val) (val)
+
+#define PWM_MIN_TO_REG(val) ((val) & 0xf0)
+#define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
+
+/* Analog output is a voltage, and scaled to millivolts.  The datasheet 
+ *   indicates that the DAC could be used to drive the fans, but in our 
+ *   example board (Arima HDAMA) it isn't connected to the fans at all.
+ */
+#define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500),0,255)) 
+#define DAC_FROM_REG(val) (((val)*2500)/255)
+
+/* Typically used with systems using a v9.1 VRM spec ? */
+#define ADM1026_INIT_VRM  91
+
+/* Chip sampling rates
+ *
+ * Some sensors are not updated more frequently than once per second
+ *    so it doesn't make sense to read them more often than that.
+ *    We cache the results and return the saved data if the driver
+ *    is called again before a second has elapsed.
+ *
+ * Also, there is significant configuration data for this chip
+ *    So, we keep the config data up to date in the cache
+ *    when it is written and only sample it once every 5 *minutes*
+ */
+#define ADM1026_DATA_INTERVAL  (1 * HZ)
+#define ADM1026_CONFIG_INTERVAL  (5 * 60 * HZ)
+
+/* We allow for multiple chips in a single system.
+ *
+ * For each registered ADM1026, we need to keep state information
+ * at client->data. The adm1026_data structure is dynamically
+ * allocated, when a new client structure is allocated. */
+
+struct pwm_data {
+	u8 pwm;
+	u8 enable;
+	u8 auto_pwm_min;
+};
+
+struct adm1026_data {
+	struct i2c_client client;
+	struct semaphore lock;
+	enum chips type;
+
+	struct semaphore update_lock;
+	int valid;		/* !=0 if following fields are valid */
+	unsigned long last_reading;	/* In jiffies */
+	unsigned long last_config;	/* In jiffies */
+
+	u8 in[17];              /* Register value */
+	u8 in_max[17];          /* Register value */
+	u8 in_min[17];          /* Register value */
+	s8 temp[3];             /* Register value */
+	s8 temp_min[3];         /* Register value */
+	s8 temp_max[3];         /* Register value */
+	s8 temp_tmin[3];        /* Register value */
+	s8 temp_crit[3];        /* Register value */
+	s8 temp_offset[3];      /* Register value */
+	u8 fan[8];              /* Register value */
+	u8 fan_min[8];          /* Register value */
+	u8 fan_div[8];          /* Decoded value */
+	struct pwm_data pwm1;   /* Pwm control values */
+	int vid;                /* Decoded value */
+	u8 vrm;                 /* VRM version */
+	u8 analog_out;		/* Register value (DAC) */
+	long alarms;            /* Register encoding, combined */
+	long alarm_mask;        /* Register encoding, combined */
+	long gpio;              /* Register encoding, combined */
+	long gpio_mask;         /* Register encoding, combined */
+	u8 gpio_config[17];     /* Decoded value */
+	u8 config1;             /* Register value */
+	u8 config2;             /* Register value */
+	u8 config3;             /* Register value */
+};
+
+static int adm1026_attach_adapter(struct i2c_adapter *adapter);
+static int adm1026_detect(struct i2c_adapter *adapter, int address,
+	int kind);
+static int adm1026_detach_client(struct i2c_client *client);
+static int adm1026_read_value(struct i2c_client *client, u8 register);
+static int adm1026_write_value(struct i2c_client *client, u8 register,
+	int value); 
+static void adm1026_print_gpio(struct i2c_client *client);
+static void adm1026_fixup_gpio(struct i2c_client *client); 
+static struct adm1026_data *adm1026_update_device(struct device *dev);
+static void adm1026_init_client(struct i2c_client *client);
+
+
+static struct i2c_driver adm1026_driver = {
+	.owner          = THIS_MODULE,
+	.name           = "adm1026",
+	.flags          = I2C_DF_NOTIFY,
+	.attach_adapter = adm1026_attach_adapter,
+	.detach_client  = adm1026_detach_client,
+};
+
+static int adm1026_id;
+
+int adm1026_attach_adapter(struct i2c_adapter *adapter)
+{
+	if (!(adapter->class & I2C_CLASS_HWMON)) {
+		return 0;
+	}
+	return i2c_detect(adapter, &addr_data, adm1026_detect);
+}
+
+int adm1026_detach_client(struct i2c_client *client)
+{
+	i2c_detach_client(client);
+	kfree(client);
+	return 0;
+}
+
+int adm1026_read_value(struct i2c_client *client, u8 reg)
+{
+	int res;
+
+	if (reg < 0x80) {
+		/* "RAM" locations */
+		res = i2c_smbus_read_byte_data(client, reg) & 0xff;
+	} else {
+		/* EEPROM, do nothing */
+		res = 0;
+	}
+	return res;
+}
+
+int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
+{
+	int res;
+
+	if (reg < 0x80) {
+		/* "RAM" locations */
+		res = i2c_smbus_write_byte_data(client, reg, value);
+	} else {
+		/* EEPROM, do nothing */
+		res = 0;
+	}
+	return res;
+}
+
+void adm1026_init_client(struct i2c_client *client)
+{
+	int value, i;
+	struct adm1026_data *data = i2c_get_clientdata(client);
+
+        dev_dbg(&client->dev,"(%d): Initializing device\n", client->id);
+	/* Read chip config */
+	data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+	data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
+	data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
+
+	/* Inform user of chip config */
+	dev_dbg(&client->dev, "(%d): ADM1026_REG_CONFIG1 is: 0x%02x\n",
+		client->id, data->config1);
+	if ((data->config1 & CFG1_MONITOR) == 0) {
+		dev_dbg(&client->dev, "(%d): Monitoring not currently "
+			"enabled.\n", client->id);
+	}
+	if (data->config1 & CFG1_INT_ENABLE) {
+		dev_dbg(&client->dev, "(%d): SMBALERT interrupts are "
+			"enabled.\n", client->id);
+	}
+	if (data->config1 & CFG1_AIN8_9) {
+		dev_dbg(&client->dev, "(%d): in8 and in9 enabled. "
+			"temp3 disabled.\n", client->id);
+	} else {
+		dev_dbg(&client->dev, "(%d): temp3 enabled.  in8 and "
+			"in9 disabled.\n", client->id);
+	}
+	if (data->config1 & CFG1_THERM_HOT) {
+		dev_dbg(&client->dev, "(%d): Automatic THERM, PWM, "
+			"and temp limits enabled.\n", client->id);
+	}
+
+	value = data->config3;
+	if (data->config3 & CFG3_GPIO16_ENABLE) {
+		dev_dbg(&client->dev, "(%d): GPIO16 enabled.  THERM"
+			"pin disabled.\n", client->id);
+	} else {
+		dev_dbg(&client->dev, "(%d): THERM pin enabled.  "
+			"GPIO16 disabled.\n", client->id);
+	}
+	if (data->config3 & CFG3_VREF_250) {
+		dev_dbg(&client->dev, "(%d): Vref is 2.50 Volts.\n",
+			client->id);
+	} else {
+		dev_dbg(&client->dev, "(%d): Vref is 1.82 Volts.\n",
+			client->id);
+	}
+	/* Read and pick apart the existing GPIO configuration */
+	value = 0;
+	for (i = 0;i <= 15;++i) {
+		if ((i & 0x03) == 0) {
+			value = adm1026_read_value(client,
+					ADM1026_REG_GPIO_CFG_0_3 + i/4);
+		}
+		data->gpio_config[i] = value & 0x03;
+		value >>= 2;
+	}
+	data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+	/* ... and then print it */
+	adm1026_print_gpio(client);
+
+	/* If the user asks us to reprogram the GPIO config, then
+	 *   do it now.  But only if this is the first ADM1026.
+	 */
+	if (client->id == 0
+	    && (gpio_input[0] != -1 || gpio_output[0] != -1
+		|| gpio_inverted[0] != -1 || gpio_normal[0] != -1
+		|| gpio_fan[0] != -1)) {
+		adm1026_fixup_gpio(client);
+	}
+
+	/* WE INTENTIONALLY make no changes to the limits,
+	 *   offsets, pwms, fans and zones.  If they were
+	 *   configured, we don't want to mess with them.
+	 *   If they weren't, the default is 100% PWM, no
+	 *   control and will suffice until 'sensors -s'
+	 *   can be run by the user.  We DO set the default 
+	 *   value for pwm1.auto_pwm_min to its maximum
+	 *   so that enabling automatic pwm fan control
+	 *   without first setting a value for pwm1.auto_pwm_min 
+	 *   will not result in potentially dangerous fan speed decrease.
+	 */
+	data->pwm1.auto_pwm_min=255;
+	/* Start monitoring */
+	value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+	/* Set MONITOR, clear interrupt acknowledge and s/w reset */
+	value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
+	dev_dbg(&client->dev, "(%d): Setting CONFIG to: 0x%02x\n",
+		client->id, value);
+	data->config1 = value;
+	adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
+}
+
+void adm1026_print_gpio(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int  i;
+
+	dev_dbg(&client->dev, "(%d): GPIO config is:",
+			    client->id);
+	for (i = 0;i <= 7;++i) {
+		if (data->config2 & (1 << i)) {
+			dev_dbg(&client->dev, "\t(%d): %sGP%s%d\n", client->id,
+				data->gpio_config[i] & 0x02 ? "" : "!",
+				data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+				i);
+		} else {
+			dev_dbg(&client->dev, "\t(%d): FAN%d\n",
+				client->id, i);
+		}
+	}
+	for (i = 8;i <= 15;++i) {
+		dev_dbg(&client->dev, "\t(%d): %sGP%s%d\n", client->id,
+			data->gpio_config[i] & 0x02 ? "" : "!",
+			data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+			i);
+	}
+	if (data->config3 & CFG3_GPIO16_ENABLE) {
+		dev_dbg(&client->dev, "\t(%d): %sGP%s16\n", client->id,
+			data->gpio_config[16] & 0x02 ? "" : "!",
+			data->gpio_config[16] & 0x01 ? "OUT" : "IN");
+	} else {
+		/* GPIO16 is THERM  */
+		dev_dbg(&client->dev, "\t(%d): THERM\n", client->id);
+	}
+}
+
+void adm1026_fixup_gpio(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int  i;
+	int  value;
+
+	/* Make the changes requested. */
+	/* We may need to unlock/stop monitoring or soft-reset the
+	 *    chip before we can make changes.  This hasn't been
+	 *    tested much.  FIXME
+	 */
+
+	/* Make outputs */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
+			data->gpio_config[gpio_output[i]] |= 0x01;
+		}
+		/* if GPIO0-7 is output, it isn't a FAN tach */
+		if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
+			data->config2 |= 1 << gpio_output[i];
+		}
+	}
+
+	/* Input overrides output */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
+			data->gpio_config[gpio_input[i]] &= ~ 0x01;
+		}
+		/* if GPIO0-7 is input, it isn't a FAN tach */
+		if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
+			data->config2 |= 1 << gpio_input[i];
+		}
+	}
+
+	/* Inverted  */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
+			data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
+		}
+	}
+
+	/* Normal overrides inverted  */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
+			data->gpio_config[gpio_normal[i]] |= 0x02;
+		}
+	}
+
+	/* Fan overrides input and output */
+	for (i = 0;i <= 7;++i) {
+		if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
+			data->config2 &= ~(1 << gpio_fan[i]);
+		}
+	}
+
+	/* Write new configs to registers */
+	adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
+	data->config3 = (data->config3 & 0x3f)
+			| ((data->gpio_config[16] & 0x03) << 6);
+	adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
+	for (i = 15, value = 0;i >= 0;--i) {
+		value <<= 2;
+		value |= data->gpio_config[i] & 0x03;
+		if ((i & 0x03) == 0) {
+			adm1026_write_value(client,
+					ADM1026_REG_GPIO_CFG_0_3 + i/4,
+					value);
+			value = 0;
+		}
+	}
+
+	/* Print the new config */
+	adm1026_print_gpio(client);
+}
+
+
+static struct adm1026_data *adm1026_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int i;
+	long value, alarms, gpio;
+
+	down(&data->update_lock);
+	if (!data->valid
+	    || (jiffies - data->last_reading > ADM1026_DATA_INTERVAL)) {
+		/* Things that change quickly */
+		dev_dbg(&client->dev,"(%d): Reading sensor values\n", 
+			client->id);
+		for (i = 0;i <= 16;++i) {
+			data->in[i] =
+			    adm1026_read_value(client, ADM1026_REG_IN[i]);
+		}
+
+		for (i = 0;i <= 7;++i) {
+			data->fan[i] =
+			    adm1026_read_value(client, ADM1026_REG_FAN(i));
+		}
+
+		for (i = 0;i <= 2;++i) {
+			/* NOTE: temp[] is s8 and we assume 2's complement
+			 *   "conversion" in the assignment   */
+			data->temp[i] =
+			    adm1026_read_value(client, ADM1026_REG_TEMP[i]);
+		}
+
+		data->pwm1.pwm = adm1026_read_value(client, 
+			ADM1026_REG_PWM);
+		data->analog_out = adm1026_read_value(client, 
+			ADM1026_REG_DAC);
+		/* GPIO16 is MSbit of alarms, move it to gpio */
+		alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
+		gpio = alarms & 0x80 ? 0x0100 : 0;  /* GPIO16 */
+		alarms &= 0x7f;
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
+		data->alarms = alarms;
+
+		/* Read the GPIO values */
+		gpio |= adm1026_read_value(client, 
+			ADM1026_REG_GPIO_STATUS_8_15);
+		gpio <<= 8;
+		gpio |= adm1026_read_value(client, 
+			ADM1026_REG_GPIO_STATUS_0_7);
+		data->gpio = gpio;
+
+		data->last_reading = jiffies;
+	};  /* last_reading */
+
+	if (!data->valid || (jiffies - data->last_config > 
+		ADM1026_CONFIG_INTERVAL)) {
+		/* Things that don't change often */
+		dev_dbg(&client->dev, "(%d): Reading config values\n", 
+			client->id);
+		for (i = 0;i <= 16;++i) {
+			data->in_min[i] = adm1026_read_value(client, 
+				ADM1026_REG_IN_MIN[i]);
+			data->in_max[i] = adm1026_read_value(client, 
+				ADM1026_REG_IN_MAX[i]);
+		}
+
+		value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
+			| (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
+			<< 8);
+		for (i = 0;i <= 7;++i) {
+			data->fan_min[i] = adm1026_read_value(client, 
+				ADM1026_REG_FAN_MIN(i));
+			data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+			value >>= 2;
+		}
+
+		for (i = 0; i <= 2; ++i) {
+			/* NOTE: temp_xxx[] are s8 and we assume 2's 
+			 *    complement "conversion" in the assignment
+			 */
+			data->temp_min[i] = adm1026_read_value(client, 
+				ADM1026_REG_TEMP_MIN[i]);
+			data->temp_max[i] = adm1026_read_value(client, 
+				ADM1026_REG_TEMP_MAX[i]);
+			data->temp_tmin[i] = adm1026_read_value(client, 
+				ADM1026_REG_TEMP_TMIN[i]);
+			data->temp_crit[i] = adm1026_read_value(client, 
+				ADM1026_REG_TEMP_THERM[i]);
+			data->temp_offset[i] = adm1026_read_value(client, 
+				ADM1026_REG_TEMP_OFFSET[i]);
+		}
+
+		/* Read the STATUS/alarm masks */
+		alarms  = adm1026_read_value(client, ADM1026_REG_MASK4);
+		gpio    = alarms & 0x80 ? 0x0100 : 0;  /* GPIO16 */
+		alarms  = (alarms & 0x7f) << 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
+		data->alarm_mask = alarms;
+
+		/* Read the GPIO values */
+		gpio |= adm1026_read_value(client, 
+			ADM1026_REG_GPIO_MASK_8_15);
+		gpio <<= 8;
+		gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
+		data->gpio_mask = gpio;
+
+		/* Read various values from CONFIG1 */
+		data->config1 = adm1026_read_value(client, 
+			ADM1026_REG_CONFIG1);
+		if (data->config1 & CFG1_PWM_AFC) {
+			data->pwm1.enable = 2;
+			data->pwm1.auto_pwm_min = 
+				PWM_MIN_FROM_REG(data->pwm1.pwm);
+		}
+		/* Read the GPIO config */
+		data->config2 = adm1026_read_value(client, 
+			ADM1026_REG_CONFIG2);
+		data->config3 = adm1026_read_value(client, 
+			ADM1026_REG_CONFIG3);
+		data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+		value = 0;
+		for (i = 0;i <= 15;++i) {
+			if ((i & 0x03) == 0) {
+				value = adm1026_read_value(client,
+					    ADM1026_REG_GPIO_CFG_0_3 + i/4);
+			}
+			data->gpio_config[i] = value & 0x03;
+			value >>= 2;
+		}
+
+		data->last_config = jiffies;
+	};  /* last_config */
+
+	dev_dbg(&client->dev, "(%d): Setting VID from GPIO11-15.\n", 
+		client->id);
+	data->vid = (data->gpio >> 11) & 0x1f;
+	data->valid = 1;
+	up(&data->update_lock);
+	return data;
+}
+
+static ssize_t show_in(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]));
+}
+static ssize_t show_in_min(struct device *dev, char *buf, int nr) 
+{
+	struct adm1026_data *data = adm1026_update_device(dev); 
+	return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]));
+}
+static ssize_t set_in_min(struct device *dev, const char *buf, 
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->in_min[nr] = INS_TO_REG(nr, val);
+	adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
+	up(&data->update_lock);
+	return count; 
+}
+static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]));
+}
+static ssize_t set_in_max(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->in_max[nr] = INS_TO_REG(nr, val);
+	adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
+	up(&data->update_lock);
+	return count;
+}
+
+#define in_reg(offset)                                                    \
+static ssize_t show_in##offset (struct device *dev, char *buf)            \
+{                                                                         \
+	return show_in(dev, buf, offset);                                 \
+}                                                                         \
+static ssize_t show_in##offset##_min (struct device *dev, char *buf)      \
+{                                                                         \
+	return show_in_min(dev, buf, offset);                             \
+}                                                                         \
+static ssize_t set_in##offset##_min (struct device *dev,                  \
+	const char *buf, size_t count)                                    \
+{                                                                         \
+	return set_in_min(dev, buf, count, offset);                       \
+}                                                                         \
+static ssize_t show_in##offset##_max (struct device *dev, char *buf)      \
+{                                                                         \
+	return show_in_max(dev, buf, offset);                             \
+}                                                                         \
+static ssize_t set_in##offset##_max (struct device *dev,                  \
+	const char *buf, size_t count)                                    \
+{                                                                         \
+	return set_in_max(dev, buf, count, offset);                       \
+}                                                                         \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);   \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                   \
+		show_in##offset##_min, set_in##offset##_min);             \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                   \
+		show_in##offset##_max, set_in##offset##_max);
+
+
+in_reg(0);
+in_reg(1);
+in_reg(2);
+in_reg(3);
+in_reg(4);
+in_reg(5);
+in_reg(6);
+in_reg(7);
+in_reg(8);
+in_reg(9);
+in_reg(10);
+in_reg(11);
+in_reg(12);
+in_reg(13);
+in_reg(14);
+in_reg(15);
+
+static ssize_t show_in16(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in[16]) -
+		NEG12_OFFSET);
+}
+static ssize_t show_in16_min(struct device *dev, char *buf) 
+{
+	struct adm1026_data *data = adm1026_update_device(dev); 
+	return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_min[16])
+		- NEG12_OFFSET);
+}
+static ssize_t set_in16_min(struct device *dev, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
+	adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
+	up(&data->update_lock);
+	return count; 
+}
+static ssize_t show_in16_max(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", INS_FROM_REG(16, data->in_max[16])
+			- NEG12_OFFSET);
+}
+static ssize_t set_in16_max(struct device *dev, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
+	adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
+	up(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL);
+static DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min);
+static DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max);
+
+
+
+
+/* Now add fan read/write functions */
+
+static ssize_t show_fan(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
+		data->fan_div[nr]));
+}
+static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
+		data->fan_div[nr]));
+}
+static ssize_t set_fan_min(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
+	adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
+		data->fan_min[nr]);
+	up(&data->update_lock);
+	return count;
+}
+
+#define fan_offset(offset)                                                  \
+static ssize_t show_fan_##offset (struct device *dev, char *buf)            \
+{                                                                           \
+	return show_fan(dev, buf, offset - 1);                              \
+}                                                                           \
+static ssize_t show_fan_##offset##_min (struct device *dev, char *buf)      \
+{                                                                           \
+	return show_fan_min(dev, buf, offset - 1);                          \
+}                                                                           \
+static ssize_t set_fan_##offset##_min (struct device *dev,                  \
+	const char *buf, size_t count)                                      \
+{                                                                           \
+	return set_fan_min(dev, buf, count, offset - 1);                    \
+}                                                                           \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);  \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                    \
+		show_fan_##offset##_min, set_fan_##offset##_min);
+
+fan_offset(1);
+fan_offset(2);
+fan_offset(3);
+fan_offset(4);
+fan_offset(5);
+fan_offset(6);
+fan_offset(7);
+fan_offset(8);
+
+/* Adjust fan_min to account for new fan divisor */
+void fixup_fan_min(struct device *dev, int fan, int old_div)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int    new_min;
+	int    new_div = data->fan_div[fan];
+
+	/* 0 and 0xff are special.  Don't adjust them */
+	if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
+		return;
+	}
+
+	new_min = data->fan_min[fan] * old_div / new_div;
+	new_min = SENSORS_LIMIT(new_min, 1, 254);
+	data->fan_min[fan] = new_min;
+	adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
+}
+
+/* Now add fan_div read/write functions */
+static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", data->fan_div[nr]);
+}
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int    val,orig_div,new_div,shift;
+
+	val = simple_strtol(buf, NULL, 10);
+	new_div = DIV_TO_REG(val); 
+	if (new_div == 0) {
+		return -EINVAL;
+	}
+	down(&data->update_lock);
+	orig_div = data->fan_div[nr];
+	data->fan_div[nr] = DIV_FROM_REG(new_div);
+
+	if (nr < 4) { /* 0 <= nr < 4 */
+		shift = 2 * nr;
+		adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
+			((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
+			(new_div << shift)));
+	} else { /* 3 < nr < 8 */
+		shift = 2 * (nr - 4);
+		adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
+			((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
+			(new_div << shift)));
+	}
+
+	if (data->fan_div[nr] != orig_div) {
+		fixup_fan_min(dev,nr,orig_div);
+	}
+	up(&data->update_lock);
+	return count;
+}
+
+#define fan_offset_div(offset)                                          \
+static ssize_t show_fan_##offset##_div (struct device *dev, char *buf)  \
+{                                                                       \
+	return show_fan_div(dev, buf, offset - 1);                      \
+}                                                                       \
+static ssize_t set_fan_##offset##_div (struct device *dev,              \
+	const char *buf, size_t count)                                  \
+{                                                                       \
+	return set_fan_div(dev, buf, count, offset - 1);                \
+}                                                                       \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,                \
+		show_fan_##offset##_div, set_fan_##offset##_div);
+
+fan_offset_div(1);
+fan_offset_div(2);
+fan_offset_div(3);
+fan_offset_div(4);
+fan_offset_div(5);
+fan_offset_div(6);
+fan_offset_div(7);
+fan_offset_div(8);
+
+/* Temps */
+static ssize_t show_temp(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+static ssize_t set_temp_min(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->temp_min[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
+		data->temp_min[nr]);
+	up(&data->update_lock);
+	return count;
+}
+static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+static ssize_t set_temp_max(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->temp_max[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
+		data->temp_max[nr]);
+	up(&data->update_lock);
+	return count;
+}
+#define temp_reg(offset)                                                      \
+static ssize_t show_temp_##offset (struct device *dev, char *buf)             \
+{                                                                             \
+	return show_temp(dev, buf, offset - 1);                               \
+}                                                                             \
+static ssize_t show_temp_##offset##_min (struct device *dev, char *buf)       \
+{                                                                             \
+	return show_temp_min(dev, buf, offset - 1);                           \
+}                                                                             \
+static ssize_t show_temp_##offset##_max (struct device *dev, char *buf)       \
+{                                                                             \
+	return show_temp_max(dev, buf, offset - 1);                           \
+}                                                                             \
+static ssize_t set_temp_##offset##_min (struct device *dev,                   \
+	const char *buf, size_t count)                                        \
+{                                                                             \
+	return set_temp_min(dev, buf, count, offset - 1);                     \
+}                                                                             \
+static ssize_t set_temp_##offset##_max (struct device *dev,                   \
+	const char *buf, size_t count)                                        \
+{                                                                             \
+	return set_temp_max(dev, buf, count, offset - 1);                     \
+}                                                                             \
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, NULL);  \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,                     \
+		show_temp_##offset##_min, set_temp_##offset##_min);           \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,                     \
+		show_temp_##offset##_max, set_temp_##offset##_max);
+
+
+temp_reg(1);
+temp_reg(2);
+temp_reg(3);
+
+static ssize_t show_temp_offset(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
+}
+static ssize_t set_temp_offset(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->temp_offset[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
+		data->temp_offset[nr]);
+	up(&data->update_lock);
+	return count;
+}
+
+#define temp_offset_reg(offset)                                             \
+static ssize_t show_temp_##offset##_offset (struct device *dev, char *buf)  \
+{                                                                           \
+	return show_temp_offset(dev, buf, offset - 1);                      \
+}                                                                           \
+static ssize_t set_temp_##offset##_offset (struct device *dev,              \
+	const char *buf, size_t count)                                      \
+{                                                                           \
+	return set_temp_offset(dev, buf, count, offset - 1);                \
+}                                                                           \
+static DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR,                \
+		show_temp_##offset##_offset, set_temp_##offset##_offset);
+
+temp_offset_reg(1);
+temp_offset_reg(2);
+temp_offset_reg(3);
+
+static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, char *buf,
+		int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(
+		ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
+}
+static ssize_t show_temp_auto_point2_temp(struct device *dev, char *buf,
+		int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
+		ADM1026_FAN_CONTROL_TEMP_RANGE));
+}
+static ssize_t show_temp_auto_point1_temp(struct device *dev, char *buf,
+		int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
+}
+static ssize_t set_temp_auto_point1_temp(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->temp_tmin[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
+		data->temp_tmin[nr]);
+	up(&data->update_lock);
+	return count;
+}
+
+#define temp_auto_point(offset)                                             \
+static ssize_t show_temp##offset##_auto_point1_temp (struct device *dev,    \
+	char *buf)                                                          \
+{                                                                           \
+	return show_temp_auto_point1_temp(dev, buf, offset - 1);            \
+}                                                                           \
+static ssize_t set_temp##offset##_auto_point1_temp (struct device *dev,     \
+	const char *buf, size_t count)                                      \
+{                                                                           \
+	return set_temp_auto_point1_temp(dev, buf, count, offset - 1);      \
+}                                                                           \
+static ssize_t show_temp##offset##_auto_point1_temp_hyst (struct device     \
+	*dev, char *buf)                                                    \
+{                                                                           \
+	return show_temp_auto_point1_temp_hyst(dev, buf, offset - 1);       \
+}                                                                           \
+static ssize_t show_temp##offset##_auto_point2_temp (struct device *dev,    \
+	 char *buf)                                                         \
+{                                                                           \
+	return show_temp_auto_point2_temp(dev, buf, offset - 1);            \
+}                                                                           \
+static DEVICE_ATTR(temp##offset##_auto_point1_temp, S_IRUGO | S_IWUSR,      \
+		show_temp##offset##_auto_point1_temp,                       \
+		set_temp##offset##_auto_point1_temp);                       \
+static DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,           \
+		show_temp##offset##_auto_point1_temp_hyst, NULL);           \
+static DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO,                \
+		show_temp##offset##_auto_point2_temp, NULL);
+
+temp_auto_point(1);
+temp_auto_point(2);
+temp_auto_point(3);
+
+static ssize_t show_temp_crit_enable(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
+}
+static ssize_t set_temp_crit_enable(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	val = simple_strtol(buf, NULL, 10);
+	if ((val == 1) || (val==0)) {
+		down(&data->update_lock);
+		data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
+		adm1026_write_value(client, ADM1026_REG_CONFIG1, 
+			data->config1);
+		up(&data->update_lock);
+	}
+	return count;
+}
+
+static DEVICE_ATTR(temp1_crit_enable, S_IRUGO | S_IWUSR, 
+	show_temp_crit_enable, set_temp_crit_enable);
+
+static DEVICE_ATTR(temp2_crit_enable, S_IRUGO | S_IWUSR, 
+	show_temp_crit_enable, set_temp_crit_enable);
+
+static DEVICE_ATTR(temp3_crit_enable, S_IRUGO | S_IWUSR, 
+	show_temp_crit_enable, set_temp_crit_enable);
+
+
+static ssize_t show_temp_crit(struct device *dev, char *buf, int nr)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
+}
+static ssize_t set_temp_crit(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->temp_crit[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
+		data->temp_crit[nr]);
+	up(&data->update_lock);
+	return count;
+}
+
+#define temp_crit_reg(offset)                                             \
+static ssize_t show_temp_##offset##_crit (struct device *dev, char *buf)  \
+{                                                                         \
+	return show_temp_crit(dev, buf, offset - 1);                      \
+}                                                                         \
+static ssize_t set_temp_##offset##_crit (struct device *dev,              \
+	const char *buf, size_t count)                                    \
+{                                                                         \
+	return set_temp_crit(dev, buf, count, offset - 1);                \
+}                                                                         \
+static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR,                \
+		show_temp_##offset##_crit, set_temp_##offset##_crit);
+
+temp_crit_reg(1);
+temp_crit_reg(2);
+temp_crit_reg(3);
+
+static ssize_t show_analog_out_reg(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", DAC_FROM_REG(data->analog_out));
+}
+static ssize_t set_analog_out_reg(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->analog_out = DAC_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
+	up(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg, 
+	set_analog_out_reg);
+
+static ssize_t show_vid_reg(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", vid_from_reg(data->vid & 0x3f, data->vrm));
+}
+
+static DEVICE_ATTR(vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", data->vrm);
+}
+static ssize_t store_vrm_reg(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+
+	data->vrm = simple_strtol(buf, NULL, 10);
+	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, char *buf)
+{
+	struct adm1026_data *data = adm1026_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_mask(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%ld\n", data->alarm_mask);
+}
+static ssize_t set_alarm_mask(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+	unsigned long mask;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->alarm_mask = val & 0x7fffffff;
+	mask = data->alarm_mask
+		| (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
+	adm1026_write_value(client, ADM1026_REG_MASK1,
+		mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_MASK2,
+		mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_MASK3,
+		mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_MASK4,
+		mask & 0xff);
+	up(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
+	set_alarm_mask);
+
+
+static ssize_t show_gpio(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%ld\n", data->gpio);
+}
+static ssize_t set_gpio(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+	long   gpio;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->gpio = val & 0x1ffff;
+	gpio = data->gpio;
+	adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7,gpio & 0xff);
+	gpio >>= 8;
+	adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15,gpio & 0xff);
+	gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
+	adm1026_write_value(client, ADM1026_REG_STATUS4,gpio & 0xff);
+	up(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
+
+
+static ssize_t show_gpio_mask(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%ld\n", data->gpio_mask);
+}
+static ssize_t set_gpio_mask(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+	long   mask;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->gpio_mask = val & 0x1ffff;
+	mask = data->gpio_mask;
+	adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7,mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15,mask & 0xff);
+	mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
+	adm1026_write_value(client, ADM1026_REG_MASK1,mask & 0xff);
+	up(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
+
+static ssize_t show_pwm_reg(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm1.pwm));
+}
+static ssize_t set_pwm_reg(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	if (data->pwm1.enable == 1) {
+		down(&data->update_lock);
+		val = simple_strtol(buf, NULL, 10);
+		data->pwm1.pwm = PWM_TO_REG(val);
+		adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+		up(&data->update_lock);
+	}
+	return count;
+}
+static ssize_t show_auto_pwm_min(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", data->pwm1.auto_pwm_min);
+}
+static ssize_t set_auto_pwm_min(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+
+	down(&data->update_lock);
+	val = simple_strtol(buf, NULL, 10);
+	data->pwm1.auto_pwm_min = SENSORS_LIMIT(val,0,255);
+	if (data->pwm1.enable == 2) { /* apply immediately */
+		data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+			PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 
+		adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+	}
+	up(&data->update_lock);
+	return count;
+}
+static ssize_t show_auto_pwm_max(struct device *dev, char *buf)
+{
+	return sprintf(buf,"%d\n", ADM1026_PWM_MAX);
+}
+static ssize_t show_pwm_enable(struct device *dev, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf,"%d\n", data->pwm1.enable);
+}
+static ssize_t set_pwm_enable(struct device *dev, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int     val;
+	int     old_enable;
+
+	val = simple_strtol(buf, NULL, 10);
+	if ((val >= 0) && (val < 3)) {
+		down(&data->update_lock);
+		old_enable = data->pwm1.enable;
+		data->pwm1.enable = val;
+		data->config1 = (data->config1 & ~CFG1_PWM_AFC)
+				| ((val == 2) ? CFG1_PWM_AFC : 0);
+		adm1026_write_value(client, ADM1026_REG_CONFIG1,
+			data->config1);
+		if (val == 2) {  /* apply pwm1_auto_pwm_min to pwm1 */
+			data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+				PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 
+			adm1026_write_value(client, ADM1026_REG_PWM, 
+				data->pwm1.pwm);
+		} else if (!((old_enable == 1) && (val == 1))) {
+			/* set pwm to safe value */
+			data->pwm1.pwm = 255;
+			adm1026_write_value(client, ADM1026_REG_PWM, 
+				data->pwm1.pwm);
+		}
+		up(&data->update_lock);
+	}
+	return count;
+}
+
+/* enable PWM fan control */
+static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 
+static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 
+static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 
+static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 
+	set_pwm_enable);
+static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 
+	set_pwm_enable);
+static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 
+	set_pwm_enable);
+static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR, 
+	show_auto_pwm_min, set_auto_pwm_min);
+static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR, 
+	show_auto_pwm_min, set_auto_pwm_min);
+static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR, 
+	show_auto_pwm_min, set_auto_pwm_min);
+
+static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+
+int adm1026_detect(struct i2c_adapter *adapter, int address,
+		int kind)
+{
+	int company, verstep;
+	struct i2c_client *new_client;
+	struct adm1026_data *data;
+	int err = 0;
+	const char *type_name = "";
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		/* We need to be able to do byte I/O */
+		goto exit;
+	};
+
+	/* OK. For now, we presume we have a valid client. We now create the
+	   client structure, even though we cannot fill it completely yet.
+	   But it allows us to access adm1026_{read,write}_value. */
+
+	if (!(data = kmalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	memset(data, 0, sizeof(struct adm1026_data));
+
+	new_client = &data->client;
+	i2c_set_clientdata(new_client, data);
+	new_client->addr = address;
+	new_client->adapter = adapter;
+	new_client->driver = &adm1026_driver;
+	new_client->flags = 0;
+
+	/* Now, we do the remaining detection. */
+
+	company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
+	verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
+
+	dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
+		" COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
+		i2c_adapter_id(new_client->adapter), new_client->addr,
+		company, verstep);
+
+	/* If auto-detecting, Determine the chip type. */
+	if (kind <= 0) {
+		dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
+			"...\n", i2c_adapter_id(adapter), address);
+		if (company == ADM1026_COMPANY_ANALOG_DEV
+		    && verstep == ADM1026_VERSTEP_ADM1026) {
+			kind = adm1026;
+		} else if (company == ADM1026_COMPANY_ANALOG_DEV
+			&& (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
+			dev_err(&adapter->dev, ": Unrecognized stepping "
+				"0x%02x. Defaulting to ADM1026.\n", verstep);
+			kind = adm1026;
+		} else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
+			dev_err(&adapter->dev, ": Found version/stepping "
+				"0x%02x. Assuming generic ADM1026.\n",
+				verstep);
+			kind = any_chip;
+		} else {
+			dev_dbg(&new_client->dev, ": Autodetection "
+				"failed\n");
+			/* Not an ADM1026 ... */
+			if (kind == 0)  { /* User used force=x,y */
+				dev_err(&adapter->dev, "Generic ADM1026 not "
+					"found at %d,0x%02x.  Try "
+					"force_adm1026.\n",
+					i2c_adapter_id(adapter), address);
+			}
+			err = 0;
+			goto exitfree;
+		}
+	}
+
+	/* Fill in the chip specific driver values */
+	switch (kind) {
+	case any_chip :
+		type_name = "adm1026";
+		break;
+	case adm1026 :
+		type_name = "adm1026";
+		break;
+	default :
+		dev_err(&adapter->dev, ": Internal error, invalid "
+			"kind (%d)!", kind);
+		err = -EFAULT;
+		goto exitfree;
+	}
+	strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
+
+	/* Fill in the remaining client fields */
+	new_client->id = adm1026_id++;
+	data->type = kind;
+	data->valid = 0;
+	init_MUTEX(&data->update_lock);
+
+	dev_dbg(&new_client->dev, "(%d): Assigning ID %d to %s at %d,0x%02x\n",
+		new_client->id, new_client->id, new_client->name,
+		i2c_adapter_id(new_client->adapter),
+		new_client->addr);
+
+	/* Tell the I2C layer a new client has arrived */
+	if ((err = i2c_attach_client(new_client)))
+		goto exitfree;
+
+	/* Set the VRM version */
+	data->vrm = i2c_which_vrm();
+
+	/* Initialize the ADM1026 chip */
+	adm1026_init_client(new_client);
+
+	/* Register sysfs hooks */
+	device_create_file(&new_client->dev, &dev_attr_in0_input);
+	device_create_file(&new_client->dev, &dev_attr_in0_max);
+	device_create_file(&new_client->dev, &dev_attr_in0_min);
+	device_create_file(&new_client->dev, &dev_attr_in1_input);
+	device_create_file(&new_client->dev, &dev_attr_in1_max);
+	device_create_file(&new_client->dev, &dev_attr_in1_min);
+	device_create_file(&new_client->dev, &dev_attr_in2_input);
+	device_create_file(&new_client->dev, &dev_attr_in2_max);
+	device_create_file(&new_client->dev, &dev_attr_in2_min);
+	device_create_file(&new_client->dev, &dev_attr_in3_input);
+	device_create_file(&new_client->dev, &dev_attr_in3_max);
+	device_create_file(&new_client->dev, &dev_attr_in3_min);
+	device_create_file(&new_client->dev, &dev_attr_in4_input);
+	device_create_file(&new_client->dev, &dev_attr_in4_max);
+	device_create_file(&new_client->dev, &dev_attr_in4_min);
+	device_create_file(&new_client->dev, &dev_attr_in5_input);
+	device_create_file(&new_client->dev, &dev_attr_in5_max);
+	device_create_file(&new_client->dev, &dev_attr_in5_min);
+	device_create_file(&new_client->dev, &dev_attr_in6_input);
+	device_create_file(&new_client->dev, &dev_attr_in6_max);
+	device_create_file(&new_client->dev, &dev_attr_in6_min);
+	device_create_file(&new_client->dev, &dev_attr_in7_input);
+	device_create_file(&new_client->dev, &dev_attr_in7_max);
+	device_create_file(&new_client->dev, &dev_attr_in7_min);
+	device_create_file(&new_client->dev, &dev_attr_in8_input);
+	device_create_file(&new_client->dev, &dev_attr_in8_max);
+	device_create_file(&new_client->dev, &dev_attr_in8_min);
+	device_create_file(&new_client->dev, &dev_attr_in9_input);
+	device_create_file(&new_client->dev, &dev_attr_in9_max);
+	device_create_file(&new_client->dev, &dev_attr_in9_min);
+	device_create_file(&new_client->dev, &dev_attr_in10_input);
+	device_create_file(&new_client->dev, &dev_attr_in10_max);
+	device_create_file(&new_client->dev, &dev_attr_in10_min);
+	device_create_file(&new_client->dev, &dev_attr_in11_input);
+	device_create_file(&new_client->dev, &dev_attr_in11_max);
+	device_create_file(&new_client->dev, &dev_attr_in11_min);
+	device_create_file(&new_client->dev, &dev_attr_in12_input);
+	device_create_file(&new_client->dev, &dev_attr_in12_max);
+	device_create_file(&new_client->dev, &dev_attr_in12_min);
+	device_create_file(&new_client->dev, &dev_attr_in13_input);
+	device_create_file(&new_client->dev, &dev_attr_in13_max);
+	device_create_file(&new_client->dev, &dev_attr_in13_min);
+	device_create_file(&new_client->dev, &dev_attr_in14_input);
+	device_create_file(&new_client->dev, &dev_attr_in14_max);
+	device_create_file(&new_client->dev, &dev_attr_in14_min);
+	device_create_file(&new_client->dev, &dev_attr_in15_input);
+	device_create_file(&new_client->dev, &dev_attr_in15_max);
+	device_create_file(&new_client->dev, &dev_attr_in15_min);
+	device_create_file(&new_client->dev, &dev_attr_in16_input);
+	device_create_file(&new_client->dev, &dev_attr_in16_max);
+	device_create_file(&new_client->dev, &dev_attr_in16_min);
+	device_create_file(&new_client->dev, &dev_attr_fan1_input);
+	device_create_file(&new_client->dev, &dev_attr_fan1_div);
+	device_create_file(&new_client->dev, &dev_attr_fan1_min);
+	device_create_file(&new_client->dev, &dev_attr_fan2_input);
+	device_create_file(&new_client->dev, &dev_attr_fan2_div);
+	device_create_file(&new_client->dev, &dev_attr_fan2_min);
+	device_create_file(&new_client->dev, &dev_attr_fan3_input);
+	device_create_file(&new_client->dev, &dev_attr_fan3_div);
+	device_create_file(&new_client->dev, &dev_attr_fan3_min);
+	device_create_file(&new_client->dev, &dev_attr_fan4_input);
+	device_create_file(&new_client->dev, &dev_attr_fan4_div);
+	device_create_file(&new_client->dev, &dev_attr_fan4_min);
+	device_create_file(&new_client->dev, &dev_attr_fan5_input);
+	device_create_file(&new_client->dev, &dev_attr_fan5_div);
+	device_create_file(&new_client->dev, &dev_attr_fan5_min);
+	device_create_file(&new_client->dev, &dev_attr_fan6_input);
+	device_create_file(&new_client->dev, &dev_attr_fan6_div);
+	device_create_file(&new_client->dev, &dev_attr_fan6_min);
+	device_create_file(&new_client->dev, &dev_attr_fan7_input);
+	device_create_file(&new_client->dev, &dev_attr_fan7_div);
+	device_create_file(&new_client->dev, &dev_attr_fan7_min);
+	device_create_file(&new_client->dev, &dev_attr_fan8_input);
+	device_create_file(&new_client->dev, &dev_attr_fan8_div);
+	device_create_file(&new_client->dev, &dev_attr_fan8_min);
+	device_create_file(&new_client->dev, &dev_attr_temp1_input);
+	device_create_file(&new_client->dev, &dev_attr_temp1_max);
+	device_create_file(&new_client->dev, &dev_attr_temp1_min);
+	device_create_file(&new_client->dev, &dev_attr_temp2_input);
+	device_create_file(&new_client->dev, &dev_attr_temp2_max);
+	device_create_file(&new_client->dev, &dev_attr_temp2_min);
+	device_create_file(&new_client->dev, &dev_attr_temp3_input);
+	device_create_file(&new_client->dev, &dev_attr_temp3_max);
+	device_create_file(&new_client->dev, &dev_attr_temp3_min);
+	device_create_file(&new_client->dev, &dev_attr_temp1_offset);
+	device_create_file(&new_client->dev, &dev_attr_temp2_offset);
+	device_create_file(&new_client->dev, &dev_attr_temp3_offset);
+	device_create_file(&new_client->dev, 
+		&dev_attr_temp1_auto_point1_temp);
+	device_create_file(&new_client->dev, 
+		&dev_attr_temp2_auto_point1_temp);
+	device_create_file(&new_client->dev, 
+		&dev_attr_temp3_auto_point1_temp);
+	device_create_file(&new_client->dev,
+		&dev_attr_temp1_auto_point1_temp_hyst);
+	device_create_file(&new_client->dev,
+		&dev_attr_temp2_auto_point1_temp_hyst);
+	device_create_file(&new_client->dev,
+		&dev_attr_temp3_auto_point1_temp_hyst);
+	device_create_file(&new_client->dev, 
+		&dev_attr_temp1_auto_point2_temp);
+	device_create_file(&new_client->dev, 
+		&dev_attr_temp2_auto_point2_temp);
+	device_create_file(&new_client->dev, 
+		&dev_attr_temp3_auto_point2_temp);
+	device_create_file(&new_client->dev, &dev_attr_temp1_crit);
+	device_create_file(&new_client->dev, &dev_attr_temp2_crit);
+	device_create_file(&new_client->dev, &dev_attr_temp3_crit);
+	device_create_file(&new_client->dev, &dev_attr_temp1_crit_enable);
+	device_create_file(&new_client->dev, &dev_attr_temp2_crit_enable);
+	device_create_file(&new_client->dev, &dev_attr_temp3_crit_enable);
+	device_create_file(&new_client->dev, &dev_attr_vid);
+	device_create_file(&new_client->dev, &dev_attr_vrm);
+	device_create_file(&new_client->dev, &dev_attr_alarms);
+	device_create_file(&new_client->dev, &dev_attr_alarm_mask);
+	device_create_file(&new_client->dev, &dev_attr_gpio);
+	device_create_file(&new_client->dev, &dev_attr_gpio_mask);
+	device_create_file(&new_client->dev, &dev_attr_pwm1);
+	device_create_file(&new_client->dev, &dev_attr_pwm2);
+	device_create_file(&new_client->dev, &dev_attr_pwm3);
+	device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
+	device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
+	device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
+	device_create_file(&new_client->dev, &dev_attr_temp1_auto_point1_pwm);
+	device_create_file(&new_client->dev, &dev_attr_temp2_auto_point1_pwm);
+	device_create_file(&new_client->dev, &dev_attr_temp3_auto_point1_pwm);
+	device_create_file(&new_client->dev, &dev_attr_temp1_auto_point2_pwm);
+	device_create_file(&new_client->dev, &dev_attr_temp2_auto_point2_pwm);
+	device_create_file(&new_client->dev, &dev_attr_temp3_auto_point2_pwm);
+	device_create_file(&new_client->dev, &dev_attr_analog_out);
+	return 0;
+
+	/* Error out and cleanup code */
+exitfree:
+	kfree(new_client);
+exit:
+	return err;
+}
+static int __init sm_adm1026_init(void)
+{
+	return i2c_add_driver(&adm1026_driver);
+}
+
+static void  __exit sm_adm1026_exit(void)
+{
+	i2c_del_driver(&adm1026_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Philip Pokorny <ppokorny at penguincomputing.com>, "
+              "Justin Thiessen <jthiessen at penguincomputing.com>");
+MODULE_DESCRIPTION("ADM1026 driver");
+
+module_init(sm_adm1026_init);
+module_exit(sm_adm1026_exit);




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