shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 19:08:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

serial: omap: Fix EFR write on RTS deassertion

Browse Source 
commit 2a71de2f73 upstream.

Commit 348f9bb31c ("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.

Fixes: 348f9bb31c ("serial: omap: Fix RTS handling")
Cc: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lukas Wunner
2017-10-21 10:50:18 +02:00
committed by Greg Kroah-Hartman
parent 2cfbb32f6c
commit 70eb4608bb
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/tty/serial/omap-serial.c
View File

@@ -693,7 +693,7 @@ static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
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);