This is a note to let you know that I've just added the patch titled
tty/serial: atmel: reschedule TX after RX was started
to my tty git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-testing branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will be merged to the tty-next branch sometime soon,
after it passes testing, and the merge window is open.
If you have any questions about this process, please let me know.
>From a8441389f0daef2d74ecd79ab27067953f0b2483 Mon Sep 17 00:00:00 2001
From: Razvan Stefanescu <razvan.stefanescu@xxxxxxxxxxxxx>
Date: Tue, 13 Aug 2019 10:40:25 +0300
Subject: 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: 69646d7a3689 ("tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped")
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@xxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20190813074025.16218-1-razvan.stefanescu@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/atmel_serial.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 19a85d6fe3d2..9a54c9e6d36e 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -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);
--
2.22.1
