Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6
[linux-drm-fsl-dcu.git] / drivers / hwmon / w83781d.c
index 96338ddd74a7a961390bc2dd89622e994305a78e..f85b48fea1c4700d566edd5413ed265ec4e382b9 100644 (file)
@@ -43,6 +43,7 @@
 #include <linux/ioport.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
 #include <linux/sysfs.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
@@ -80,8 +81,8 @@ MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
 #define W83781D_ADDR_REG_OFFSET                5
 #define W83781D_DATA_REG_OFFSET                6
 
-/* The W83781D registers */
-/* The W83782D registers for nr=7,8 are in bank 5 */
+/* The device registers */
+/* in nr from 0 to 8 */
 #define W83781D_REG_IN_MAX(nr)         ((nr < 7) ? (0x2b + (nr) * 2) : \
                                                    (0x554 + (((nr) - 7) * 2)))
 #define W83781D_REG_IN_MIN(nr)         ((nr < 7) ? (0x2c + (nr) * 2) : \
@@ -89,12 +90,14 @@ MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
 #define W83781D_REG_IN(nr)             ((nr < 7) ? (0x20 + (nr)) : \
                                                    (0x550 + (nr) - 7))
 
-#define W83781D_REG_FAN_MIN(nr)                (0x3a + (nr))
-#define W83781D_REG_FAN(nr)            (0x27 + (nr))
+/* fan nr from 0 to 2 */
+#define W83781D_REG_FAN_MIN(nr)                (0x3b + (nr))
+#define W83781D_REG_FAN(nr)            (0x28 + (nr))
 
 #define W83781D_REG_BANK               0x4E
 #define W83781D_REG_TEMP2_CONFIG       0x152
 #define W83781D_REG_TEMP3_CONFIG       0x252
+/* temp nr from 1 to 3 */
 #define W83781D_REG_TEMP(nr)           ((nr == 3) ? (0x0250) : \
                                        ((nr == 2) ? (0x0150) : \
                                                     (0x27)))
@@ -132,19 +135,9 @@ MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
 #define W83781D_REG_VBAT               0x5D
 
 /* PWM 782D (1-4) and 783S (1-2) only */
-#define W83781D_REG_PWM1               0x5B    /* 782d and 783s/627hf datasheets disagree */
-                                               /* on which is which; */
-#define W83781D_REG_PWM2               0x5A    /* We follow the 782d convention here, */
-                                               /* However 782d is probably wrong. */
-#define W83781D_REG_PWM3               0x5E
-#define W83781D_REG_PWM4               0x5F
+static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 0x5F };
 #define W83781D_REG_PWMCLK12           0x5C
 #define W83781D_REG_PWMCLK34           0x45C
-static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2,
-       W83781D_REG_PWM3, W83781D_REG_PWM4
-};
-
-#define W83781D_REG_PWM(nr)            (regpwm[(nr) - 1])
 
 #define W83781D_REG_I2C_ADDR           0x48
 #define W83781D_REG_I2C_SUBADDR                0x4A
@@ -164,12 +157,9 @@ static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
 #define W83781D_REG_RT_IDX             0x50
 #define W83781D_REG_RT_VAL             0x51
 
-/* 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.
-   Fixing this is just not worth it. */
-#define IN_TO_REG(val)                 (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255))
-#define IN_FROM_REG(val)               (((val) * 16) / 10)
+/* Conversions */
+#define IN_TO_REG(val)                 SENSORS_LIMIT(((val) + 8) / 16, 0, 255)
+#define IN_FROM_REG(val)               ((val) * 16)
 
 static inline u8
 FAN_TO_REG(long rpm, int div)
@@ -180,24 +170,24 @@ FAN_TO_REG(long rpm, int div)
        return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 }
 
-#define FAN_FROM_REG(val,div)          ((val) == 0   ? -1 : \
-                                       ((val) == 255 ? 0 : \
-                                                       1350000 / ((val) * (div))))
+static inline long
+FAN_FROM_REG(u8 val, int div)
+{
+       if (val == 0)
+               return -1;
+       if (val == 255)
+               return 0;
+       return 1350000 / (val * div);
+}
 
-#define TEMP_TO_REG(val)               (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
-                                               : (val)) / 1000, 0, 0xff))
-#define TEMP_FROM_REG(val)             (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
+#define TEMP_TO_REG(val)               SENSORS_LIMIT((val) / 1000, -127, 128)
+#define TEMP_FROM_REG(val)             ((val) * 1000)
 
-#define PWM_FROM_REG(val)              (val)
-#define PWM_TO_REG(val)                        (SENSORS_LIMIT((val),0,255))
 #define BEEP_MASK_FROM_REG(val,type)   ((type) == as99127f ? \
                                         (val) ^ 0x7fff : (val))
 #define BEEP_MASK_TO_REG(val,type)     ((type) == as99127f ? \
                                         (~(val)) & 0x7fff : (val) & 0xffffff)
 
-#define BEEP_ENABLE_TO_REG(val)                ((val) ? 1 : 0)
-#define BEEP_ENABLE_FROM_REG(val)      ((val) ? 1 : 0)
-
 #define DIV_FROM_REG(val)              (1 << (val))
 
 static inline u8
@@ -212,7 +202,7 @@ DIV_TO_REG(long val, enum chips type)
                        break;
                val >>= 1;
        }
-       return ((u8) i);
+       return i;
 }
 
 /* There are some complications in a module like this. First off, W83781D chips
@@ -246,9 +236,9 @@ struct w83781d_data {
        u8 in_min[9];           /* Register value - 8 & 9 for 782D only */
        u8 fan[3];              /* Register value */
        u8 fan_min[3];          /* Register value */
-       u8 temp;
-       u8 temp_max;            /* Register value */
-       u8 temp_max_hyst;       /* Register value */
+       s8 temp;                /* Register value */
+       s8 temp_max;            /* Register value */
+       s8 temp_max_hyst;       /* Register value */
        u16 temp_add[2];        /* Register value */
        u16 temp_max_add[2];    /* Register value */
        u16 temp_max_hyst_add[2];       /* Register value */
@@ -258,7 +248,7 @@ struct w83781d_data {
        u32 beep_mask;          /* Register encoding, combined */
        u8 beep_enable;         /* Boolean */
        u8 pwm[4];              /* Register value */
-       u8 pwmenable[4];        /* Boolean */
+       u8 pwm2_enable;         /* Boolean */
        u16 sens[3];            /* 782D/783S only.
                                   1 = pentium diode; 2 = 3904 diode;
                                   3000-5000 = thermistor beta.
@@ -274,8 +264,8 @@ static int w83781d_detach_client(struct i2c_client *client);
 static int __devinit w83781d_isa_probe(struct platform_device *pdev);
 static int __devexit w83781d_isa_remove(struct platform_device *pdev);
 
-static int w83781d_read_value(struct i2c_client *client, u16 reg);
-static int w83781d_write_value(struct i2c_client *client, u16 reg, u16 value);
+static int w83781d_read_value(struct w83781d_data *data, u16 reg);
+static int w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value);
 static struct w83781d_data *w83781d_update_device(struct device *dev);
 static void w83781d_init_device(struct device *dev);
 
@@ -300,27 +290,32 @@ static struct platform_driver w83781d_isa_driver = {
 
 /* following are the sysfs callback functions */
 #define show_in_reg(reg) \
-static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+               char *buf) \
 { \
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
        struct w83781d_data *data = w83781d_update_device(dev); \
-       return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \
+       return sprintf(buf, "%ld\n", \
+                      (long)IN_FROM_REG(data->reg[attr->index])); \
 }
 show_in_reg(in);
 show_in_reg(in_min);
 show_in_reg(in_max);
 
 #define store_in_reg(REG, reg) \
-static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
+static ssize_t store_in_##reg (struct device *dev, struct device_attribute \
+               *da, const char *buf, size_t count) \
 { \
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
        struct w83781d_data *data = dev_get_drvdata(dev); \
-       struct i2c_client *client = &data->client; \
+       int nr = attr->index; \
        u32 val; \
         \
-       val = simple_strtoul(buf, NULL, 10) / 10; \
+       val = simple_strtoul(buf, NULL, 10); \
         \
        mutex_lock(&data->update_lock); \
        data->in_##reg[nr] = IN_TO_REG(val); \
-       w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
+       w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
         \
        mutex_unlock(&data->update_lock); \
        return count; \
@@ -328,29 +323,13 @@ static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count
 store_in_reg(MIN, min);
 store_in_reg(MAX, max);
 
-#define sysfs_in_offset(offset) \
-static ssize_t \
-show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-        return show_in(dev, buf, offset); \
-} \
-static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
-
-#define sysfs_in_reg_offset(reg, offset) \
-static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_in_##reg (dev, buf, offset); \
-} \
-static ssize_t store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-       return store_in_##reg (dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_in_##reg##offset, store_regs_in_##reg##offset);
-
 #define sysfs_in_offsets(offset) \
-sysfs_in_offset(offset); \
-sysfs_in_reg_offset(min, offset); \
-sysfs_in_reg_offset(max, offset);
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+               show_in, NULL, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+               show_in_min, store_in_min, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+               show_in_max, store_in_max, offset)
 
 sysfs_in_offsets(0);
 sysfs_in_offsets(1);
@@ -363,63 +342,56 @@ sysfs_in_offsets(7);
 sysfs_in_offsets(8);
 
 #define show_fan_reg(reg) \
-static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+               char *buf) \
 { \
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
        struct w83781d_data *data = w83781d_update_device(dev); \
        return sprintf(buf,"%ld\n", \
-               FAN_FROM_REG(data->reg[nr-1], (long)DIV_FROM_REG(data->fan_div[nr-1]))); \
+               FAN_FROM_REG(data->reg[attr->index], \
+                       DIV_FROM_REG(data->fan_div[attr->index]))); \
 }
 show_fan_reg(fan);
 show_fan_reg(fan_min);
 
 static ssize_t
-store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
+store_fan_min(struct device *dev, struct device_attribute *da,
+               const char *buf, size_t count)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
+       int nr = attr->index;
        u32 val;
 
        val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
-       data->fan_min[nr - 1] =
-           FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
-       w83781d_write_value(client, W83781D_REG_FAN_MIN(nr),
-                           data->fan_min[nr - 1]);
+       data->fan_min[nr] =
+           FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+       w83781d_write_value(data, W83781D_REG_FAN_MIN(nr),
+                           data->fan_min[nr]);
 
        mutex_unlock(&data->update_lock);
        return count;
 }
 
-#define sysfs_fan_offset(offset) \
-static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_fan(dev, buf, offset); \
-} \
-static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
-
-#define sysfs_fan_min_offset(offset) \
-static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_fan_min(dev, buf, offset); \
-} \
-static ssize_t store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-       return store_fan_min(dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, show_regs_fan_min##offset, store_regs_fan_min##offset);
-
-sysfs_fan_offset(1);
-sysfs_fan_min_offset(1);
-sysfs_fan_offset(2);
-sysfs_fan_min_offset(2);
-sysfs_fan_offset(3);
-sysfs_fan_min_offset(3);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
+               show_fan_min, store_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
+               show_fan_min, store_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
+               show_fan_min, store_fan_min, 2);
 
 #define show_temp_reg(reg) \
-static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+               char *buf) \
 { \
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
        struct w83781d_data *data = w83781d_update_device(dev); \
+       int nr = attr->index; \
        if (nr >= 2) {  /* TEMP2 and TEMP3 */ \
                return sprintf(buf,"%d\n", \
                        LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
@@ -432,10 +404,12 @@ show_temp_reg(temp_max);
 show_temp_reg(temp_max_hyst);
 
 #define store_temp_reg(REG, reg) \
-static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
+static ssize_t store_temp_##reg (struct device *dev, \
+               struct device_attribute *da, const char *buf, size_t count) \
 { \
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
        struct w83781d_data *data = dev_get_drvdata(dev); \
-       struct i2c_client *client = &data->client; \
+       int nr = attr->index; \
        s32 val; \
         \
        val = simple_strtol(buf, NULL, 10); \
@@ -444,11 +418,11 @@ static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t cou
         \
        if (nr >= 2) {  /* TEMP2 and TEMP3 */ \
                data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
-               w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \
+               w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \
                                data->temp_##reg##_add[nr-2]); \
        } else {        /* TEMP1 */ \
                data->temp_##reg = TEMP_TO_REG(val); \
-               w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \
+               w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \
                        data->temp_##reg); \
        } \
         \
@@ -458,29 +432,13 @@ static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t cou
 store_temp_reg(OVER, max);
 store_temp_reg(HYST, max_hyst);
 
-#define sysfs_temp_offset(offset) \
-static ssize_t \
-show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_temp(dev, buf, offset); \
-} \
-static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
-
-#define sysfs_temp_reg_offset(reg, offset) \
-static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_temp_##reg (dev, buf, offset); \
-} \
-static ssize_t store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-       return store_temp_##reg (dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
-
 #define sysfs_temp_offsets(offset) \
-sysfs_temp_offset(offset); \
-sysfs_temp_reg_offset(max, offset); \
-sysfs_temp_reg_offset(max_hyst, offset);
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+               show_temp, NULL, offset); \
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+               show_temp_max, store_temp_max, offset); \
+static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \
+               show_temp_max_hyst, store_temp_max_hyst, offset);
 
 sysfs_temp_offsets(1);
 sysfs_temp_offsets(2);
@@ -534,68 +492,67 @@ static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr
 static ssize_t show_beep_enable (struct device *dev, struct device_attribute *attr, char *buf)
 {
        struct w83781d_data *data = w83781d_update_device(dev);
-       return sprintf(buf, "%ld\n",
-                      (long)BEEP_ENABLE_FROM_REG(data->beep_enable));
+       return sprintf(buf, "%ld\n", (long)data->beep_enable);
 }
 
-#define BEEP_ENABLE                    0       /* Store beep_enable */
-#define BEEP_MASK                      1       /* Store beep_mask */
-
 static ssize_t
-store_beep_reg(struct device *dev, const char *buf, size_t count,
-              int update_mask)
+store_beep_mask(struct device *dev, struct device_attribute *attr,
+               const char *buf, size_t count)
 {
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
-       u32 val, val2;
+       u32 val;
 
        val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
+       data->beep_mask = BEEP_MASK_TO_REG(val, data->type);
+       w83781d_write_value(data, W83781D_REG_BEEP_INTS1,
+                           data->beep_mask & 0xff);
+       w83781d_write_value(data, W83781D_REG_BEEP_INTS2,
+                           ((data->beep_mask >> 8) & 0x7f)
+                           | data->beep_enable << 7);
+       if (data->type != w83781d && data->type != as99127f) {
+               w83781d_write_value(data, W83781D_REG_BEEP_INTS3,
+                                   ((data->beep_mask) >> 16) & 0xff);
+       }
+       mutex_unlock(&data->update_lock);
 
-       if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
-               data->beep_mask = BEEP_MASK_TO_REG(val, data->type);
-               w83781d_write_value(client, W83781D_REG_BEEP_INTS1,
-                                   data->beep_mask & 0xff);
-
-               if ((data->type != w83781d) && (data->type != as99127f)) {
-                       w83781d_write_value(client, W83781D_REG_BEEP_INTS3,
-                                           ((data->beep_mask) >> 16) & 0xff);
-               }
+       return count;
+}
 
-               val2 = (data->beep_mask >> 8) & 0x7f;
-       } else {                /* We are storing beep_enable */
-               val2 = w83781d_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
-               data->beep_enable = BEEP_ENABLE_TO_REG(val);
-       }
+static ssize_t
+store_beep_enable(struct device *dev, struct device_attribute *attr,
+               const char *buf, size_t count)
+{
+       struct w83781d_data *data = dev_get_drvdata(dev);
+       u32 val;
 
-       w83781d_write_value(client, W83781D_REG_BEEP_INTS2,
-                           val2 | data->beep_enable << 7);
+       val = simple_strtoul(buf, NULL, 10);
+       if (val != 0 && val != 1)
+               return -EINVAL;
 
+       mutex_lock(&data->update_lock);
+       data->beep_enable = val;
+       val = w83781d_read_value(data, W83781D_REG_BEEP_INTS2) & 0x7f;
+       val |= data->beep_enable << 7;
+       w83781d_write_value(data, W83781D_REG_BEEP_INTS2, val);
        mutex_unlock(&data->update_lock);
+
        return count;
 }
 
-#define sysfs_beep(REG, reg) \
-static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_beep_##reg(dev, attr, buf); \
-} \
-static ssize_t store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-       return store_beep_reg(dev, buf, count, BEEP_##REG); \
-} \
-static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_regs_beep_##reg);
-
-sysfs_beep(ENABLE, enable);
-sysfs_beep(MASK, mask);
+static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+               show_beep_mask, store_beep_mask);
+static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+               show_beep_enable, store_beep_enable);
 
 static ssize_t
-show_fan_div_reg(struct device *dev, char *buf, int nr)
+show_fan_div(struct device *dev, struct device_attribute *da, char *buf)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = w83781d_update_device(dev);
        return sprintf(buf, "%ld\n",
-                      (long) DIV_FROM_REG(data->fan_div[nr - 1]));
+                      (long) DIV_FROM_REG(data->fan_div[attr->index]));
 }
 
 /* Note: we save and restore the fan minimum here, because its value is
@@ -603,11 +560,13 @@ show_fan_div_reg(struct device *dev, char *buf, int nr)
    least surprise; the user doesn't expect the fan minimum to change just
    because the divisor changed. */
 static ssize_t
-store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
+store_fan_div(struct device *dev, struct device_attribute *da,
+               const char *buf, size_t count)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
        unsigned long min;
+       int nr = attr->index;
        u8 reg;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
@@ -619,77 +578,72 @@ store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
 
        data->fan_div[nr] = DIV_TO_REG(val, data->type);
 
-       reg = (w83781d_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+       reg = (w83781d_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
               & (nr==0 ? 0xcf : 0x3f))
            | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
-       w83781d_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+       w83781d_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
 
        /* w83781d and as99127f don't have extended divisor bits */
        if (data->type != w83781d && data->type != as99127f) {
-               reg = (w83781d_read_value(client, W83781D_REG_VBAT)
+               reg = (w83781d_read_value(data, W83781D_REG_VBAT)
                       & ~(1 << (5 + nr)))
                    | ((data->fan_div[nr] & 0x04) << (3 + nr));
-               w83781d_write_value(client, W83781D_REG_VBAT, reg);
+               w83781d_write_value(data, W83781D_REG_VBAT, reg);
        }
 
        /* Restore fan_min */
        data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
-       w83781d_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
+       w83781d_write_value(data, W83781D_REG_FAN_MIN(nr), data->fan_min[nr]);
 
        mutex_unlock(&data->update_lock);
        return count;
 }
 
-#define sysfs_fan_div(offset) \
-static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_fan_div_reg(dev, buf, offset); \
-} \
-static ssize_t store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-       return store_fan_div_reg(dev, buf, count, offset - 1); \
-} \
-static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, show_regs_fan_div_##offset, store_regs_fan_div_##offset);
-
-sysfs_fan_div(1);
-sysfs_fan_div(2);
-sysfs_fan_div(3);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+               show_fan_div, store_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+               show_fan_div, store_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR,
+               show_fan_div, store_fan_div, 2);
 
 static ssize_t
-show_pwm_reg(struct device *dev, char *buf, int nr)
+show_pwm(struct device *dev, struct device_attribute *da, char *buf)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = w83781d_update_device(dev);
-       return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr - 1]));
+       return sprintf(buf, "%d\n", (int)data->pwm[attr->index]);
 }
 
 static ssize_t
-show_pwmenable_reg(struct device *dev, char *buf, int nr)
+show_pwm2_enable(struct device *dev, struct device_attribute *da, char *buf)
 {
        struct w83781d_data *data = w83781d_update_device(dev);
-       return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]);
+       return sprintf(buf, "%d\n", (int)data->pwm2_enable);
 }
 
 static ssize_t
-store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
+store_pwm(struct device *dev, struct device_attribute *da, const char *buf,
+               size_t count)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
+       int nr = attr->index;
        u32 val;
 
        val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
-       data->pwm[nr - 1] = PWM_TO_REG(val);
-       w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]);
+       data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
+       w83781d_write_value(data, W83781D_REG_PWM[nr], data->pwm[nr]);
        mutex_unlock(&data->update_lock);
        return count;
 }
 
 static ssize_t
-store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr)
+store_pwm2_enable(struct device *dev, struct device_attribute *da,
+               const char *buf, size_t count)
 {
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
        u32 val, reg;
 
        val = simple_strtoul(buf, NULL, 10);
@@ -699,15 +653,15 @@ store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr)
        switch (val) {
        case 0:
        case 1:
-               reg = w83781d_read_value(client, W83781D_REG_PWMCLK12);
-               w83781d_write_value(client, W83781D_REG_PWMCLK12,
+               reg = w83781d_read_value(data, W83781D_REG_PWMCLK12);
+               w83781d_write_value(data, W83781D_REG_PWMCLK12,
                                    (reg & 0xf7) | (val << 3));
 
-               reg = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
-               w83781d_write_value(client, W83781D_REG_BEEP_CONFIG,
+               reg = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
+               w83781d_write_value(data, W83781D_REG_BEEP_CONFIG,
                                    (reg & 0xef) | (!val << 4));
 
-               data->pwmenable[nr - 1] = val;
+               data->pwm2_enable = val;
                break;
 
        default:
@@ -719,50 +673,29 @@ store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr)
        return count;
 }
 
-#define sysfs_pwm(offset) \
-static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_pwm_reg(dev, buf, offset); \
-} \
-static ssize_t store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, \
-               const char *buf, size_t count) \
-{ \
-       return store_pwm_reg(dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
-               show_regs_pwm_##offset, store_regs_pwm_##offset);
-
-#define sysfs_pwmenable(offset) \
-static ssize_t show_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_pwmenable_reg(dev, buf, offset); \
-} \
-static ssize_t store_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, \
-               const char *buf, size_t count) \
-{ \
-       return store_pwmenable_reg(dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
-               show_regs_pwmenable_##offset, store_regs_pwmenable_##offset);
-
-sysfs_pwm(1);
-sysfs_pwm(2);
-sysfs_pwmenable(2);            /* only PWM2 can be enabled/disabled */
-sysfs_pwm(3);
-sysfs_pwm(4);
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 3);
+/* only PWM2 can be enabled/disabled */
+static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
+               show_pwm2_enable, store_pwm2_enable);
 
 static ssize_t
-show_sensor_reg(struct device *dev, char *buf, int nr)
+show_sensor(struct device *dev, struct device_attribute *da, char *buf)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = w83781d_update_device(dev);
-       return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
+       return sprintf(buf, "%d\n", (int)data->sens[attr->index]);
 }
 
 static ssize_t
-store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
+store_sensor(struct device *dev, struct device_attribute *da,
+               const char *buf, size_t count)
 {
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
+       int nr = attr->index;
        u32 val, tmp;
 
        val = simple_strtoul(buf, NULL, 10);
@@ -771,28 +704,28 @@ store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
 
        switch (val) {
        case 1:         /* PII/Celeron diode */
-               tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
-               w83781d_write_value(client, W83781D_REG_SCFG1,
-                                   tmp | BIT_SCFG1[nr - 1]);
-               tmp = w83781d_read_value(client, W83781D_REG_SCFG2);
-               w83781d_write_value(client, W83781D_REG_SCFG2,
-                                   tmp | BIT_SCFG2[nr - 1]);
-               data->sens[nr - 1] = val;
+               tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+               w83781d_write_value(data, W83781D_REG_SCFG1,
+                                   tmp | BIT_SCFG1[nr]);
+               tmp = w83781d_read_value(data, W83781D_REG_SCFG2);
+               w83781d_write_value(data, W83781D_REG_SCFG2,
+                                   tmp | BIT_SCFG2[nr]);
+               data->sens[nr] = val;
                break;
        case 2:         /* 3904 */
-               tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
-               w83781d_write_value(client, W83781D_REG_SCFG1,
-                                   tmp | BIT_SCFG1[nr - 1]);
-               tmp = w83781d_read_value(client, W83781D_REG_SCFG2);
-               w83781d_write_value(client, W83781D_REG_SCFG2,
-                                   tmp & ~BIT_SCFG2[nr - 1]);
-               data->sens[nr - 1] = val;
+               tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+               w83781d_write_value(data, W83781D_REG_SCFG1,
+                                   tmp | BIT_SCFG1[nr]);
+               tmp = w83781d_read_value(data, W83781D_REG_SCFG2);
+               w83781d_write_value(data, W83781D_REG_SCFG2,
+                                   tmp & ~BIT_SCFG2[nr]);
+               data->sens[nr] = val;
                break;
        case W83781D_DEFAULT_BETA:      /* thermistor */
-               tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
-               w83781d_write_value(client, W83781D_REG_SCFG1,
-                                   tmp & ~BIT_SCFG1[nr - 1]);
-               data->sens[nr - 1] = val;
+               tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+               w83781d_write_value(data, W83781D_REG_SCFG1,
+                                   tmp & ~BIT_SCFG1[nr]);
+               data->sens[nr] = val;
                break;
        default:
                dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n",
@@ -804,20 +737,12 @@ store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
        return count;
 }
 
-#define sysfs_sensor(offset) \
-static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-    return show_sensor_reg(dev, buf, offset); \
-} \
-static ssize_t store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-    return store_sensor_reg(dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, show_regs_sensor_##offset, store_regs_sensor_##offset);
-
-sysfs_sensor(1);
-sysfs_sensor(2);
-sysfs_sensor(3);
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR,
+       show_sensor, store_sensor, 0);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
+       show_sensor, store_sensor, 0);
+static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
+       show_sensor, store_sensor, 0);
 
 /* I2C devices get this name attribute automatically, but for ISA devices
    we must create it by ourselves. */
@@ -872,12 +797,12 @@ w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
                                goto ERROR_SC_1;
                        }
                }
-               w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR,
+               w83781d_write_value(data, W83781D_REG_I2C_SUBADDR,
                                (force_subclients[2] & 0x07) |
                                ((force_subclients[3] & 0x07) << 4));
                data->lm75[0]->addr = force_subclients[2];
        } else {
-               val1 = w83781d_read_value(new_client, W83781D_REG_I2C_SUBADDR);
+               val1 = w83781d_read_value(data, W83781D_REG_I2C_SUBADDR);
                data->lm75[0]->addr = 0x48 + (val1 & 0x07);
        }
 
@@ -947,20 +872,20 @@ ERROR_SC_0:
        return err;
 }
 
-#define IN_UNIT_ATTRS(X)                       \
-       &dev_attr_in##X##_input.attr,           \
-       &dev_attr_in##X##_min.attr,             \
-       &dev_attr_in##X##_max.attr
+#define IN_UNIT_ATTRS(X)                                       \
+       &sensor_dev_attr_in##X##_input.dev_attr.attr,           \
+       &sensor_dev_attr_in##X##_min.dev_attr.attr,             \
+       &sensor_dev_attr_in##X##_max.dev_attr.attr
 
-#define FAN_UNIT_ATTRS(X)                      \
-       &dev_attr_fan##X##_input.attr,          \
-       &dev_attr_fan##X##_min.attr,            \
-       &dev_attr_fan##X##_div.attr
+#define FAN_UNIT_ATTRS(X)                                      \
+       &sensor_dev_attr_fan##X##_input.dev_attr.attr,          \
+       &sensor_dev_attr_fan##X##_min.dev_attr.attr,            \
+       &sensor_dev_attr_fan##X##_div.dev_attr.attr
 
-#define TEMP_UNIT_ATTRS(X)                     \
-       &dev_attr_temp##X##_input.attr,         \
-       &dev_attr_temp##X##_max.attr,           \
-       &dev_attr_temp##X##_max_hyst.attr
+#define TEMP_UNIT_ATTRS(X)                                     \
+       &sensor_dev_attr_temp##X##_input.dev_attr.attr,         \
+       &sensor_dev_attr_temp##X##_max.dev_attr.attr,           \
+       &sensor_dev_attr_temp##X##_max_hyst.dev_attr.attr
 
 static struct attribute* w83781d_attributes[] = {
        IN_UNIT_ATTRS(0),
@@ -990,14 +915,14 @@ static struct attribute *w83781d_attributes_opt[] = {
        IN_UNIT_ATTRS(7),
        IN_UNIT_ATTRS(8),
        TEMP_UNIT_ATTRS(3),
-       &dev_attr_pwm1.attr,
-       &dev_attr_pwm2.attr,
+       &sensor_dev_attr_pwm1.dev_attr.attr,
+       &sensor_dev_attr_pwm2.dev_attr.attr,
+       &sensor_dev_attr_pwm3.dev_attr.attr,
+       &sensor_dev_attr_pwm4.dev_attr.attr,
        &dev_attr_pwm2_enable.attr,
-       &dev_attr_pwm3.attr,
-       &dev_attr_pwm4.attr,
-       &dev_attr_temp1_type.attr,
-       &dev_attr_temp2_type.attr,
-       &dev_attr_temp3_type.attr,
+       &sensor_dev_attr_temp1_type.dev_attr.attr,
+       &sensor_dev_attr_temp2_type.dev_attr.attr,
+       &sensor_dev_attr_temp3_type.dev_attr.attr,
        NULL
 };
 static const struct attribute_group w83781d_group_opt = {
@@ -1014,48 +939,64 @@ w83781d_create_files(struct device *dev, int kind, int is_isa)
                return err;
 
        if (kind != w83783s) {
-               if ((err = device_create_file(dev, &dev_attr_in1_input))
-                   || (err = device_create_file(dev, &dev_attr_in1_min))
-                   || (err = device_create_file(dev, &dev_attr_in1_max)))
+               if ((err = device_create_file(dev,
+                               &sensor_dev_attr_in1_input.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in1_min.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in1_max.dev_attr)))
                        return err;
        }
        if (kind != as99127f && kind != w83781d && kind != w83783s) {
-               if ((err = device_create_file(dev, &dev_attr_in7_input))
-                   || (err = device_create_file(dev, &dev_attr_in7_min))
-                   || (err = device_create_file(dev, &dev_attr_in7_max))
-                   || (err = device_create_file(dev, &dev_attr_in8_input))
-                   || (err = device_create_file(dev, &dev_attr_in8_min))
-                   || (err = device_create_file(dev, &dev_attr_in8_max)))
+               if ((err = device_create_file(dev,
+                               &sensor_dev_attr_in7_input.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in7_min.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in7_max.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in8_input.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in8_min.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_in8_max.dev_attr)))
                        return err;
        }
        if (kind != w83783s) {
-               if ((err = device_create_file(dev, &dev_attr_temp3_input))
-                   || (err = device_create_file(dev, &dev_attr_temp3_max))
+               if ((err = device_create_file(dev,
+                               &sensor_dev_attr_temp3_input.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_temp3_max.dev_attr))
                    || (err = device_create_file(dev,
-                                                &dev_attr_temp3_max_hyst)))
+                               &sensor_dev_attr_temp3_max_hyst.dev_attr)))
                        return err;
        }
 
        if (kind != w83781d && kind != as99127f) {
-               if ((err = device_create_file(dev, &dev_attr_pwm1))
-                   || (err = device_create_file(dev, &dev_attr_pwm2))
+               if ((err = device_create_file(dev,
+                               &sensor_dev_attr_pwm1.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_pwm2.dev_attr))
                    || (err = device_create_file(dev, &dev_attr_pwm2_enable)))
                        return err;
        }
        if (kind == w83782d && !is_isa) {
-               if ((err = device_create_file(dev, &dev_attr_pwm3))
-                   || (err = device_create_file(dev, &dev_attr_pwm4)))
+               if ((err = device_create_file(dev,
+                               &sensor_dev_attr_pwm3.dev_attr))
+                   || (err = device_create_file(dev,
+                               &sensor_dev_attr_pwm4.dev_attr)))
                        return err;
        }
 
        if (kind != as99127f && kind != w83781d) {
-               if ((err = device_create_file(dev, &dev_attr_temp1_type))
+               if ((err = device_create_file(dev,
+                               &sensor_dev_attr_temp1_type.dev_attr))
                    || (err = device_create_file(dev,
-                                                &dev_attr_temp2_type)))
+                               &sensor_dev_attr_temp2_type.dev_attr)))
                        return err;
                if (kind != w83783s) {
                        if ((err = device_create_file(dev,
-                                                     &dev_attr_temp3_type)))
+                                       &sensor_dev_attr_temp3_type.dev_attr)))
                                return err;
                }
        }
@@ -1109,14 +1050,14 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
           force_*=... parameter, and the Winbond will be reset to the right
           bank. */
        if (kind < 0) {
-               if (w83781d_read_value(client, W83781D_REG_CONFIG) & 0x80) {
+               if (w83781d_read_value(data, W83781D_REG_CONFIG) & 0x80) {
                        dev_dbg(&adapter->dev, "Detection of w83781d chip "
                                "failed at step 3\n");
                        err = -ENODEV;
                        goto ERROR2;
                }
-               val1 = w83781d_read_value(client, W83781D_REG_BANK);
-               val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN);
+               val1 = w83781d_read_value(data, W83781D_REG_BANK);
+               val2 = w83781d_read_value(data, W83781D_REG_CHIPMAN);
                /* Check for Winbond or Asus ID if in bank 0 */
                if ((!(val1 & 0x07)) &&
                    (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
@@ -1131,7 +1072,7 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
                if ((!(val1 & 0x80) && (val2 == 0xa3)) ||
                    ((val1 & 0x80) && (val2 == 0x5c))) {
                        if (w83781d_read_value
-                           (client, W83781D_REG_I2C_ADDR) != address) {
+                           (data, W83781D_REG_I2C_ADDR) != address) {
                                dev_dbg(&adapter->dev, "Detection of w83781d "
                                        "chip failed at step 5\n");
                                err = -ENODEV;
@@ -1142,14 +1083,14 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
 
        /* We have either had a force parameter, or we have already detected the
           Winbond. Put it now into bank 0 and Vendor ID High Byte */
-       w83781d_write_value(client, W83781D_REG_BANK,
-                           (w83781d_read_value(client, W83781D_REG_BANK)
+       w83781d_write_value(data, W83781D_REG_BANK,
+                           (w83781d_read_value(data, W83781D_REG_BANK)
                             & 0x78) | 0x80);
 
        /* Determine the chip type. */
        if (kind <= 0) {
                /* get vendor ID */
-               val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN);
+               val2 = w83781d_read_value(data, W83781D_REG_CHIPMAN);
                if (val2 == 0x5c)
                        vendid = winbond;
                else if (val2 == 0x12)
@@ -1161,7 +1102,7 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
                        goto ERROR2;
                }
 
-               val1 = w83781d_read_value(client, W83781D_REG_WCHIPID);
+               val1 = w83781d_read_value(data, W83781D_REG_WCHIPID);
                if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
                        kind = w83781d;
                else if (val1 == 0x30 && vendid == winbond)
@@ -1294,7 +1235,7 @@ w83781d_isa_probe(struct platform_device *pdev)
        i2c_set_clientdata(&data->client, data);
        platform_set_drvdata(pdev, data);
 
-       reg = w83781d_read_value(&data->client, W83781D_REG_WCHIPID);
+       reg = w83781d_read_value(data, W83781D_REG_WCHIPID);
        switch (reg) {
        case 0x21:
                data->type = w83627hf;
@@ -1359,9 +1300,9 @@ w83781d_isa_remove(struct platform_device *pdev)
    There are some ugly typecasts here, but the good news is - they should
    nowhere else be necessary! */
 static int
-w83781d_read_value(struct i2c_client *client, u16 reg)
+w83781d_read_value(struct w83781d_data *data, u16 reg)
 {
-       struct w83781d_data *data = i2c_get_clientdata(client);
+       struct i2c_client *client = &data->client;
        int res, word_sized, bank;
        struct i2c_client *cl;
 
@@ -1428,9 +1369,9 @@ w83781d_read_value(struct i2c_client *client, u16 reg)
 }
 
 static int
-w83781d_write_value(struct i2c_client *client, u16 reg, u16 value)
+w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value)
 {
-       struct w83781d_data *data = i2c_get_clientdata(client);
+       struct i2c_client *client = &data->client;
        int word_sized, bank;
        struct i2c_client *cl;
 
@@ -1495,11 +1436,15 @@ static void
 w83781d_init_device(struct device *dev)
 {
        struct w83781d_data *data = dev_get_drvdata(dev);
-       struct i2c_client *client = &data->client;
        int i, p;
        int type = data->type;
        u8 tmp;
 
+       if (type == w83627hf)
+               dev_info(dev, "The W83627HF chip is better supported by the "
+                        "w83627hf driver, support will be dropped from the "
+                        "w83781d driver soon\n");
+
        if (reset && type != as99127f) { /* this resets registers we don't have
                                           documentation for on the as99127f */
                /* Resetting the chip has been the default for a long time,
@@ -1512,38 +1457,38 @@ w83781d_init_device(struct device *dev)
                         "having, please report!\n");
 
                /* save these registers */
-               i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
-               p = w83781d_read_value(client, W83781D_REG_PWMCLK12);
+               i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
+               p = w83781d_read_value(data, W83781D_REG_PWMCLK12);
                /* Reset all except Watchdog values and last conversion values
                   This sets fan-divs to 2, among others */
-               w83781d_write_value(client, W83781D_REG_CONFIG, 0x80);
+               w83781d_write_value(data, W83781D_REG_CONFIG, 0x80);
                /* Restore the registers and disable power-on abnormal beep.
                   This saves FAN 1/2/3 input/output values set by BIOS. */
-               w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
-               w83781d_write_value(client, W83781D_REG_PWMCLK12, p);
+               w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
+               w83781d_write_value(data, W83781D_REG_PWMCLK12, p);
                /* Disable master beep-enable (reset turns it on).
                   Individual beep_mask should be reset to off but for some reason
                   disabling this bit helps some people not get beeped */
-               w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0);
+               w83781d_write_value(data, W83781D_REG_BEEP_INTS2, 0);
        }
 
        /* Disable power-on abnormal beep, as advised by the datasheet.
           Already done if reset=1. */
        if (init && !reset && type != as99127f) {
-               i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
-               w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
+               i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
+               w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
        }
 
        data->vrm = vid_which_vrm();
 
        if ((type != w83781d) && (type != as99127f)) {
-               tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
+               tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
                for (i = 1; i <= 3; i++) {
                        if (!(tmp & BIT_SCFG1[i - 1])) {
                                data->sens[i - 1] = W83781D_DEFAULT_BETA;
                        } else {
                                if (w83781d_read_value
-                                   (client,
+                                   (data,
                                     W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
                                        data->sens[i - 1] = 1;
                                else
@@ -1556,41 +1501,38 @@ w83781d_init_device(struct device *dev)
 
        if (init && type != as99127f) {
                /* Enable temp2 */
-               tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG);
+               tmp = w83781d_read_value(data, W83781D_REG_TEMP2_CONFIG);
                if (tmp & 0x01) {
                        dev_warn(dev, "Enabling temp2, readings "
                                 "might not make sense\n");
-                       w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG,
+                       w83781d_write_value(data, W83781D_REG_TEMP2_CONFIG,
                                tmp & 0xfe);
                }
 
                /* Enable temp3 */
                if (type != w83783s) {
-                       tmp = w83781d_read_value(client,
+                       tmp = w83781d_read_value(data,
                                W83781D_REG_TEMP3_CONFIG);
                        if (tmp & 0x01) {
                                dev_warn(dev, "Enabling temp3, "
                                         "readings might not make sense\n");
-                               w83781d_write_value(client,
+                               w83781d_write_value(data,
                                        W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
                        }
                }
        }
 
        /* Start monitoring */
-       w83781d_write_value(client, W83781D_REG_CONFIG,
-                           (w83781d_read_value(client,
+       w83781d_write_value(data, W83781D_REG_CONFIG,
+                           (w83781d_read_value(data,
                                                W83781D_REG_CONFIG) & 0xf7)
                            | 0x01);
 
        /* A few vars need to be filled upon startup */
-       for (i = 1; i <= 3; i++) {
-               data->fan_min[i - 1] = w83781d_read_value(client,
+       for (i = 0; i < 3; i++) {
+               data->fan_min[i] = w83781d_read_value(data,
                                        W83781D_REG_FAN_MIN(i));
        }
-       if (type != w83781d && type != as99127f)
-               for (i = 0; i < 4; i++)
-                       data->pwmenable[i] = 1;
 
        mutex_init(&data->update_lock);
 }
@@ -1611,97 +1553,97 @@ static struct w83781d_data *w83781d_update_device(struct device *dev)
                        if (data->type == w83783s && i == 1)
                                continue;       /* 783S has no in1 */
                        data->in[i] =
-                           w83781d_read_value(client, W83781D_REG_IN(i));
+                           w83781d_read_value(data, W83781D_REG_IN(i));
                        data->in_min[i] =
-                           w83781d_read_value(client, W83781D_REG_IN_MIN(i));
+                           w83781d_read_value(data, W83781D_REG_IN_MIN(i));
                        data->in_max[i] =
-                           w83781d_read_value(client, W83781D_REG_IN_MAX(i));
+                           w83781d_read_value(data, W83781D_REG_IN_MAX(i));
                        if ((data->type != w83782d)
                            && (data->type != w83627hf) && (i == 6))
                                break;
                }
-               for (i = 1; i <= 3; i++) {
-                       data->fan[i - 1] =
-                           w83781d_read_value(client, W83781D_REG_FAN(i));
-                       data->fan_min[i - 1] =
-                           w83781d_read_value(client, W83781D_REG_FAN_MIN(i));
+               for (i = 0; i < 3; i++) {
+                       data->fan[i] =
+                           w83781d_read_value(data, W83781D_REG_FAN(i));
+                       data->fan_min[i] =
+                           w83781d_read_value(data, W83781D_REG_FAN_MIN(i));
                }
                if (data->type != w83781d && data->type != as99127f) {
-                       for (i = 1; i <= 4; i++) {
-                               data->pwm[i - 1] =
-                                   w83781d_read_value(client,
-                                                      W83781D_REG_PWM(i));
+                       for (i = 0; i < 4; i++) {
+                               data->pwm[i] =
+                                   w83781d_read_value(data,
+                                                      W83781D_REG_PWM[i]);
                                if ((data->type != w83782d || !client->driver)
-                                   && i == 2)
+                                   && i == 1)
                                        break;
                        }
                        /* Only PWM2 can be disabled */
-                       data->pwmenable[1] = (w83781d_read_value(client,
+                       data->pwm2_enable = (w83781d_read_value(data,
                                              W83781D_REG_PWMCLK12) & 0x08) >> 3;
                }
 
-               data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1));
+               data->temp = w83781d_read_value(data, W83781D_REG_TEMP(1));
                data->temp_max =
-                   w83781d_read_value(client, W83781D_REG_TEMP_OVER(1));
+                   w83781d_read_value(data, W83781D_REG_TEMP_OVER(1));
                data->temp_max_hyst =
-                   w83781d_read_value(client, W83781D_REG_TEMP_HYST(1));
+                   w83781d_read_value(data, W83781D_REG_TEMP_HYST(1));
                data->temp_add[0] =
-                   w83781d_read_value(client, W83781D_REG_TEMP(2));
+                   w83781d_read_value(data, W83781D_REG_TEMP(2));
                data->temp_max_add[0] =
-                   w83781d_read_value(client, W83781D_REG_TEMP_OVER(2));
+                   w83781d_read_value(data, W83781D_REG_TEMP_OVER(2));
                data->temp_max_hyst_add[0] =
-                   w83781d_read_value(client, W83781D_REG_TEMP_HYST(2));
+                   w83781d_read_value(data, W83781D_REG_TEMP_HYST(2));
                if (data->type != w83783s) {
                        data->temp_add[1] =
-                           w83781d_read_value(client, W83781D_REG_TEMP(3));
+                           w83781d_read_value(data, W83781D_REG_TEMP(3));
                        data->temp_max_add[1] =
-                           w83781d_read_value(client,
+                           w83781d_read_value(data,
                                               W83781D_REG_TEMP_OVER(3));
                        data->temp_max_hyst_add[1] =
-                           w83781d_read_value(client,
+                           w83781d_read_value(data,
                                               W83781D_REG_TEMP_HYST(3));
                }
-               i = w83781d_read_value(client, W83781D_REG_VID_FANDIV);
+               i = w83781d_read_value(data, W83781D_REG_VID_FANDIV);
                data->vid = i & 0x0f;
-               data->vid |= (w83781d_read_value(client,
+               data->vid |= (w83781d_read_value(data,
                                        W83781D_REG_CHIPID) & 0x01) << 4;
                data->fan_div[0] = (i >> 4) & 0x03;
                data->fan_div[1] = (i >> 6) & 0x03;
-               data->fan_div[2] = (w83781d_read_value(client,
+               data->fan_div[2] = (w83781d_read_value(data,
                                        W83781D_REG_PIN) >> 6) & 0x03;
                if ((data->type != w83781d) && (data->type != as99127f)) {
-                       i = w83781d_read_value(client, W83781D_REG_VBAT);
+                       i = w83781d_read_value(data, W83781D_REG_VBAT);
                        data->fan_div[0] |= (i >> 3) & 0x04;
                        data->fan_div[1] |= (i >> 4) & 0x04;
                        data->fan_div[2] |= (i >> 5) & 0x04;
                }
                if ((data->type == w83782d) || (data->type == w83627hf)) {
-                       data->alarms = w83781d_read_value(client,
+                       data->alarms = w83781d_read_value(data,
                                                W83782D_REG_ALARM1)
-                                    | (w83781d_read_value(client,
+                                    | (w83781d_read_value(data,
                                                W83782D_REG_ALARM2) << 8)
-                                    | (w83781d_read_value(client,
+                                    | (w83781d_read_value(data,
                                                W83782D_REG_ALARM3) << 16);
                } else if (data->type == w83783s) {
-                       data->alarms = w83781d_read_value(client,
+                       data->alarms = w83781d_read_value(data,
                                                W83782D_REG_ALARM1)
-                                    | (w83781d_read_value(client,
+                                    | (w83781d_read_value(data,
                                                W83782D_REG_ALARM2) << 8);
                } else {
                        /* No real-time status registers, fall back to
                           interrupt status registers */
-                       data->alarms = w83781d_read_value(client,
+                       data->alarms = w83781d_read_value(data,
                                                W83781D_REG_ALARM1)
-                                    | (w83781d_read_value(client,
+                                    | (w83781d_read_value(data,
                                                W83781D_REG_ALARM2) << 8);
                }
-               i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2);
+               i = w83781d_read_value(data, W83781D_REG_BEEP_INTS2);
                data->beep_enable = i >> 7;
                data->beep_mask = ((i & 0x7f) << 8) +
-                   w83781d_read_value(client, W83781D_REG_BEEP_INTS1);
+                   w83781d_read_value(data, W83781D_REG_BEEP_INTS1);
                if ((data->type != w83781d) && (data->type != as99127f)) {
                        data->beep_mask |=
-                           w83781d_read_value(client,
+                           w83781d_read_value(data,
                                               W83781D_REG_BEEP_INTS3) << 16;
                }
                data->last_updated = jiffies;