From patchwork Mon Sep 15 14:00:10 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frans Klaver X-Patchwork-Id: 389365 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 96B5714017A for ; Tue, 16 Sep 2014 00:01:56 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752933AbaIOOBW (ORCPT ); Mon, 15 Sep 2014 10:01:22 -0400 Received: from filter1.ibarracuda.nl ([83.247.7.10]:51422 "EHLO filter1.ibarracuda.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752894AbaIOOBS (ORCPT ); Mon, 15 Sep 2014 10:01:18 -0400 X-ASG-Debug-ID: 1410789675-0759e746c032500002-s6If30 Received: from XSMCASSVR01.xsens-tech.local (rev-215.116.249.87.virtu.nl [87.249.116.215]) by filter1.ibarracuda.nl with ESMTP id W1EpNmaOKEKSJ1WB (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO); Mon, 15 Sep 2014 16:01:16 +0200 (CEST) X-Barracuda-Envelope-From: Frans.Klaver@xsens.com X-Barracuda-AUTH-User: xsenscom X-Barracuda-Apparent-Source-IP: 87.249.116.215 Received: from ci00147.xsens-tech.local (172.16.11.160) by XSMCASSVR01.xsens-tech.local (192.168.0.248) with Microsoft SMTP Server id 14.3.195.1; Mon, 15 Sep 2014 16:01:16 +0200 From: Frans Klaver To: Tony Lindgren CC: Frans Klaver , Felipe Balbi , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Greg Kroah-Hartman , Alexey Pelykh , Jiri Slaby , , , , , Subject: [PATCH 4/4] tty: omap-serial: support setting of hardware flow control in dts Date: Mon, 15 Sep 2014 16:00:10 +0200 X-ASG-Orig-Subj: [PATCH 4/4] tty: omap-serial: support setting of hardware flow control in dts Message-ID: <1410789610-23059-5-git-send-email-frans.klaver@xsens.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1410789610-23059-1-git-send-email-frans.klaver@xsens.com> References: <1410789610-23059-1-git-send-email-frans.klaver@xsens.com> MIME-Version: 1.0 X-Originating-IP: [172.16.11.160] X-Barracuda-Connect: rev-215.116.249.87.virtu.nl[87.249.116.215] X-Barracuda-Start-Time: 1410789676 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://filter1.ibarracuda.nl:8000/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at ibarracuda.nl X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9505 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This makes hardware flow control availability configurable from the device tree. Signed-off-by: Frans Klaver --- Documentation/devicetree/bindings/serial/omap_serial.txt | 1 + drivers/tty/serial/omap-serial.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt index 342eedd..1b629e9 100644 --- a/Documentation/devicetree/bindings/serial/omap_serial.txt +++ b/Documentation/devicetree/bindings/serial/omap_serial.txt @@ -8,3 +8,4 @@ Required properties: Optional properties: - clock-frequency : frequency of the clock input to the UART +- has-hw-flow-control : the hardware has flow control capability diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 398139a..bff6874 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1597,6 +1597,10 @@ static struct omap_uart_port_info *of_get_uart_port_info(struct device *dev) of_property_read_u32(dev->of_node, "clock-frequency", &omap_up_info->uartclk); + + if (of_property_read_bool(dev->of_node, "has-hw-flow-control")) + omap_up_info->flags |= UPF_HARD_FLOW; + return omap_up_info; }