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    SubjectRe: [PATCH] I2C fixes for 2.6.10-rc2
    Date
    From
    ChangeSet 1.2223.2.7, 2004/11/24 14:34:25-08:00, jthiessen@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@penguincomputing.com>
    Signed-off-by: Greg Kroah-Hartman <greg@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@penguincomputing.com>
    + Copyright (C) 2004 Justin Thiessen <jthiessen@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@penguincomputing.com>, "
    + "Justin Thiessen <jthiessen@penguincomputing.com>");
    +MODULE_DESCRIPTION("ADM1026 driver");
    +
    +module_init(sm_adm1026_init);
    +module_exit(sm_adm1026_exit);
    -
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      Last update: 2005-03-22 14:08    [W:0.146 / U:30.268 seconds]
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