Patch "serial: omap: Fix EFR write on RTS deassertion" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

serial: omap: Fix EFR write on RTS deassertion

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
serial-omap-fix-efr-write-on-rts-deassertion.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Lukas Wunner <[email protected]>
Date: Sat, 21 Oct 2017 10:50:18 +0200
Subject: serial: omap: Fix EFR write on RTS deassertion

From: Lukas Wunner <[email protected]>

commit 2a71de2f7366fb1aec632116d0549ec56d6a3940 upstream.

Commit 348f9bb31c56 ("serial: omap: Fix RTS handling") sought to enable auto RTS upon manual RTS assertion and disable it on deassertion. However it seems the latter was done incorrectly, it clears all bits in the Extended Features Register *except* auto RTS.

---
 drivers/tty/serial/omap-serial.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -693,7 +693,7 @@ static void serial_omap_set_mctrl(struct
 	if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS))
 		up->efr |= UART_EFR_RTS;
 	else
-		up->efr &= UART_EFR_RTS;
+		up->efr &= ~UART_EFR_RTS;
 	serial_out(up, UART_EFR, up->efr);
 	serial_out(up, UART_LCR, lcr);
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/serial-omap-fix-efr-write-on-rts-deassertion.patch