+static struct lm63_data *lm63_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm63_data *data = i2c_get_clientdata(client);
+ unsigned long next_update;
+ int i;
+
+ mutex_lock(&data->update_lock);
+
+ next_update = data->last_updated
+ + msecs_to_jiffies(data->update_interval) + 1;
+
+ if (time_after(jiffies, next_update) || !data->valid) {
+ if (data->config & 0x04) { /* tachometer enabled */
+ /* order matters for fan1_input */
+ data->fan[0] = i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_COUNT_LSB) & 0xFC;
+ data->fan[0] |= i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_COUNT_MSB) << 8;
+ data->fan[1] = (i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_LIMIT_LSB) & 0xFC)
+ | (i2c_smbus_read_byte_data(client,
+ LM63_REG_TACH_LIMIT_MSB) << 8);
+ }
+
+ data->pwm1_freq = i2c_smbus_read_byte_data(client,
+ LM63_REG_PWM_FREQ);
+ if (data->pwm1_freq == 0)
+ data->pwm1_freq = 1;
+ data->pwm1[0] = i2c_smbus_read_byte_data(client,
+ LM63_REG_PWM_VALUE);
+
+ data->temp8[0] = i2c_smbus_read_byte_data(client,
+ LM63_REG_LOCAL_TEMP);
+ data->temp8[1] = i2c_smbus_read_byte_data(client,
+ LM63_REG_LOCAL_HIGH);
+
+ /* order matters for temp2_input */
+ data->temp11[0] = i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TEMP_MSB) << 8;
+ data->temp11[0] |= i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TEMP_LSB);
+ data->temp11[1] = (i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_LOW_MSB) << 8)
+ | i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_LOW_LSB);
+ data->temp11[2] = (i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_HIGH_MSB) << 8)
+ | i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_HIGH_LSB);
+ data->temp11[3] = (i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_OFFSET_MSB) << 8)
+ | i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_OFFSET_LSB);
+
+ if (data->kind == lm96163)
+ data->temp11u = (i2c_smbus_read_byte_data(client,
+ LM96163_REG_REMOTE_TEMP_U_MSB) << 8)
+ | i2c_smbus_read_byte_data(client,
+ LM96163_REG_REMOTE_TEMP_U_LSB);
+
+ data->temp8[2] = i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TCRIT);
+ data->temp2_crit_hyst = i2c_smbus_read_byte_data(client,
+ LM63_REG_REMOTE_TCRIT_HYST);
+
+ data->alarms = i2c_smbus_read_byte_data(client,
+ LM63_REG_ALERT_STATUS) & 0x7F;
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ if (time_after(jiffies, data->lut_last_updated + 5 * HZ) ||
+ !data->lut_valid) {
+ for (i = 0; i < data->lut_size; i++) {
+ data->pwm1[1 + i] = i2c_smbus_read_byte_data(client,
+ LM63_REG_LUT_PWM(i));
+ data->temp8[3 + i] = i2c_smbus_read_byte_data(client,
+ LM63_REG_LUT_TEMP(i));
+ }
+ data->lut_temp_hyst = i2c_smbus_read_byte_data(client,
+ LM63_REG_LUT_TEMP_HYST);
+
+ data->lut_last_updated = jiffies;
+ data->lut_valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
+