>From the TMC TRM, the ETF can be configured as buffer mode, so ETF can
be a sink type.
Signed-off-by: NXia Kaixu <kaixu.xia@linaro.org>
Signed-off-by: NMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>