tree b4bc9eaa1ee95b14d7739cad19c682acc37698e2
parent 9220ebffda4aa23fe683c9ca6c94fb72d7c131c2
author Yegor Yefremov <yegorslists@googlemail.com> 1458806625 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1461046538 +0900

tty/serial/8250: fix RS485 half-duplex RX

When in half-duplex mode RX will be disabled before TX, but not
enabled after deactivating transmitter. This patch enables
UART_IER_RLSI and UART_IER_RDI interrupts after TX is over.

Cc: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Fixes: e490c9144cfa ("tty: Add software emulated RS485 support for 8250")
Acked-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>