drm/amdgpu: add documentation on hwmon interfaces exposed (v3)

	return count;

}

/**

 * DOC: hwmon

 *

 * The amdgpu driver exposes the following sensor interfaces:

 * - GPU temperature (via the on-die sensor)

 * - GPU voltage

 * - Northbridge voltage (APUs only)

 * - GPU power

 * - GPU fan

 *

 * hwmon interfaces for GPU temperature:

 * - temp1_input: the on die GPU temperature in millidegrees Celsius

 * - temp1_crit: temperature critical max value in millidegrees Celsius

 * - temp1_crit_hyst: temperature hysteresis for critical limit in millidegrees Celsius

 *

 * hwmon interfaces for GPU voltage:

 * - in0_input: the voltage on the GPU in millivolts

 * - in1_input: the voltage on the Northbridge in millivolts

 *

 * hwmon interfaces for GPU power:

 * - power1_average: average power used by the GPU in microWatts

 * - power1_cap_min: minimum cap supported in microWatts

 * - power1_cap_max: maximum cap supported in microWatts

 * - power1_cap: selected power cap in microWatts

 *

 * hwmon interfaces for GPU fan:

 * - pwm1: pulse width modulation fan level (0-255)

 * - pwm1_enable: pulse width modulation fan control method

 *                0: no fan speed control

 *                1: manual fan speed control using pwm interface

 *                2: automatic fan speed control

 * - pwm1_min: pulse width modulation fan control minimum level (0)

 * - pwm1_max: pulse width modulation fan control maximum level (255)

 * - fan1_input: fan speed in RPM

 *

 * You can use hwmon tools like sensors to view this information on your system.

 *

 */

static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, 0);

static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0);

static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1);