From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frans Klaver Subject: [PATCH 3/3] tty: omap-serial: support setting of hardware flow control in dts Date: Tue, 29 Jul 2014 16:52:57 +0200 Message-ID: <1406645577-18620-4-git-send-email-frans.klaver@xsens.com> References: <1406645577-18620-1-git-send-email-frans.klaver@xsens.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from filter1.ibarracuda.nl ([83.247.7.10]:33659 "EHLO filter1.ibarracuda.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754010AbaG2PFZ (ORCPT ); Tue, 29 Jul 2014 11:05:25 -0400 Received: from XSMCASSVR01.xsens-tech.local (rev-215.116.249.87.virtu.nl [87.249.116.215]) by filter1.ibarracuda.nl with ESMTP id lejY1yOzUkFj4VAz (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 29 Jul 2014 16:53:32 +0200 (CEST) In-Reply-To: <1406645577-18620-1-git-send-email-frans.klaver@xsens.com> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: linux-serial@vger.kernel.org Cc: Frans Klaver 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 | 3 +++ 2 files changed, 4 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 ff2d931..87df0ee 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1660,6 +1660,9 @@ static int serial_omap_probe(struct platform_device *pdev) return -EPROBE_DEFER; wakeirq = irq_of_parse_and_map(pdev->dev.of_node, 1); omap_up_info = of_get_uart_port_info(&pdev->dev); + if (of_property_read_bool(pdev->dev.of_node, + "has-hw-flow-control")) + omap_up_info->flags |= UPF_HARD_FLOW; pdev->dev.platform_data = omap_up_info; } else { uartirq = platform_get_irq(pdev, 0); -- 1.9.3