power_dpm_state  1414 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, amdgpu_get_dpm_state, amdgpu_set_dpm_state);
power_dpm_state   665 drivers/gpu/drm/radeon/radeon_pm.c static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, radeon_get_dpm_state, radeon_set_dpm_state);