Commits
Fugang Duan committed 3a7c650dd80
MLK-12161 tty: serial: imx: only enable RTSD interrupt for hw flow control Only enable RTSD interrupt for hw flow control, otherwise RTS_B signal has some external signal disturbance without config RTS_B select input. Signed-off-by: Fugang Duan <B38611@freescale.com> (cherry picked from commit: 471e8c43aca3) Conflicts: drivers/tty/serial/imx.c