renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-14 00:24:15 +08:00
Code

serial: omap: Fix EFR write on RTS deassertion

Browse Source 
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>
Cc: stable <stable@vger.kernel.org>
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 e60f9fd03b
commit 2a71de2f73
1 changed files with 1 additions and 1 deletions
Show Stats 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);