From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932309Ab1HCXeW (ORCPT ); Wed, 3 Aug 2011 19:34:22 -0400 Received: from cantor2.suse.de ([195.135.220.15]:34159 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756075Ab1HCXap (ORCPT ); Wed, 3 Aug 2011 19:30:45 -0400 X-Mailbox-Line: From gregkh@clark.kroah.org Wed Aug 3 15:12:52 2011 Message-Id: <20110803221252.820068993@clark.kroah.org> User-Agent: quilt/0.48-16.4 Date: Wed, 03 Aug 2011 15:01:47 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Stephen Warren Subject: [087/102] tty/serial: Fix XSCALE serial ports, e.g. ce4100 In-Reply-To: <20110803221345.GA10346@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.0-stable review patch. If anyone has any objections, please let us know. ------------------ From: Stephen Warren commit 5568181f188ae9485a0cdbea5ea48f63d186a298 upstream. Commit 4539c24fe4f92c09ee668ef959d3e8180df619b9 "tty/serial: Add explicit PORT_TEGRA type" introduced separate flags describing the need for IER bits UUE and RTOIE. Both bits are required for the XSCALE port type. While that patch updated uart_config[] as required, the auto-probing code wasn't updated to set the RTOIE flag when an XSCALE port type was detected. This caused such ports to stop working. This patch rectifies that. Reported-by: Sebastian Andrzej Siewior Tested-by: Sebastian Andrzej Siewior Signed-off-by: Stephen Warren Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -1107,7 +1107,7 @@ static void autoconfig_16550a(struct uar */ DEBUG_AUTOCONF("Xscale "); up->port.type = PORT_XSCALE; - up->capabilities |= UART_CAP_UUE; + up->capabilities |= UART_CAP_UUE | UART_CAP_RTOIE; return; } } else {