+static ssize_t
+show_pwm_enable(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+ int nr = to_sensor_dev_attr(devattr)->index;
+ struct w83627hf_data *data = w83627hf_update_device(dev);
+ return sprintf(buf, "%d\n", data->pwm_enable[nr]);
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int nr = to_sensor_dev_attr(devattr)->index;
+ struct w83627hf_data *data = dev_get_drvdata(dev);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+ u8 reg;
+
+ if (!val || (val > 3)) /* modes 1, 2 and 3 are supported */
+ return -EINVAL;
+ mutex_lock(&data->update_lock);
+ data->pwm_enable[nr] = val;
+ reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
+ reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
+ reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
+ w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 2);
+