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tty/serial: atmel: reschedule TX after RX was started 

When half-duplex RS485 communication is used, after RX is started, TX
tasklet still needs to be  scheduled tasklet. This avoids console freezing
when more data is to be transmitted, if the serial communication is not
closed.

Fixes: 69646d7a36 ("tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped")
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190813074025.16218-1-razvan.stefanescu@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Razvan Stefanescu 2019-08-13 10:40:25 +03:00 committed by Greg Kroah-Hartman
parent 09864c1cdf
commit d2ace81bf9
1 changed files with 0 additions and 1 deletions
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drivers/tty/serial/atmel_serial.c
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@ -1400,7 +1400,6 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending)
atmel_port->hd_start_rx = false;
atmel_start_rx(port);
return;
}
atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx);