From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:52886 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933643AbcJTN3c (ORCPT ); Thu, 20 Oct 2016 09:29:32 -0400 Subject: Patch "serial: imx: Fix DCD reading" has been added to the 4.7-stable tree To: s.hauer@pengutronix.de, fabio.estevam@nxp.com, gregkh@linuxfoundation.org, u.kleine-koenig@pengutronix.de Cc: , From: Date: Thu, 20 Oct 2016 15:29:27 +0200 Message-ID: <147697016765188@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled serial: imx: Fix DCD reading to the 4.7-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-imx-fix-dcd-reading.patch and it can be found in the queue-4.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 4b75f80003617fe35771a9e27022e8fbd6a41875 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 26 Sep 2016 15:55:31 +0200 Subject: serial: imx: Fix DCD reading MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Sascha Hauer commit 4b75f80003617fe35771a9e27022e8fbd6a41875 upstream. The USR2_DCDIN bit is tested for in register usr1. As the name suggests the usr2 register should be used instead. This fixes reading the Carrier detect status. Signed-off-by: Sascha Hauer Fixes: 90ebc4838666 ("serial: imx: repair and complete handshaking") Acked-by: Uwe Kleine-König Reviewed-by: Fabio Estevam Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -740,12 +740,13 @@ static unsigned int imx_get_hwmctrl(stru { unsigned int tmp = TIOCM_DSR; unsigned usr1 = readl(sport->port.membase + USR1); + unsigned usr2 = readl(sport->port.membase + USR2); if (usr1 & USR1_RTSS) tmp |= TIOCM_CTS; /* in DCE mode DCDIN is always 0 */ - if (!(usr1 & USR2_DCDIN)) + if (!(usr2 & USR2_DCDIN)) tmp |= TIOCM_CAR; if (sport->dte_mode) Patches currently in stable-queue which might be from s.hauer@pengutronix.de are queue-4.7/serial-imx-fix-dcd-reading.patch