Add two optional DT properties to configure RX and TX FIFO thresholds:
- rx-threshold
- tx-threshold
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NErwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210413174015.23011-2-erwan.leray@foss.st.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>