amdgpu_dpm_get_fan_speed_rpm
err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed);
err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm);
(amdgpu_dpm_get_fan_speed_rpm(adev, NULL) == -EOPNOTSUPP)) &&
(amdgpu_dpm_get_fan_speed_rpm(adev, NULL) == -EOPNOTSUPP) &&
int amdgpu_dpm_get_fan_speed_rpm(struct amdgpu_device *adev,