This is based on info released by AMD, should allow using audio in much
more cases.
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NDave Airlie <airlied@redhat.com>