Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753912AbcD2NFE (ORCPT ); Fri, 29 Apr 2016 09:05:04 -0400 Received: from andre.telenet-ops.be ([195.130.132.53]:46099 "EHLO andre.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753834AbcD2M6s (ORCPT ); Fri, 29 Apr 2016 08:58:48 -0400 From: Geert Uytterhoeven To: Greg Kroah-Hartman , Jiri Slaby , Peter Hurley Cc: Magnus Damm , Laurent Pinchart , Yoshinori Sato , linux-serial@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven , devicetree@vger.kernel.org Subject: [PATCH v2 02/11] serial: sh-sci: Update DT binding documentation for dedicated RTS/CTS Date: Fri, 29 Apr 2016 14:58:25 +0200 Message-Id: <1461934714-18681-3-git-send-email-geert+renesas@glider.be> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1461934714-18681-1-git-send-email-geert+renesas@glider.be> References: <1461934714-18681-1-git-send-email-geert+renesas@glider.be> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1496 Lines: 35 Some Renesas SCIF UARTs have dedicated lines for RTS/CTS hardware flow control. Whether these lines exist depends on SoC and UART instance inside the SoC. Whether these lines can be used for hardware flow control depends on board wiring. Amend the DT bindings with an optional property to indicate that RTS/CTS hardware flow control lines exist, and can be used as such, according to the Generic Serial DT Bindings. Signed-off-by: Geert Uytterhoeven Cc: devicetree@vger.kernel.org --- v2: - Drop RFC status, - Use "uart-has-rtscts" instead of "renesas,uart-has-rtscts", - Refer to the Generic Serial DT Bindings. --- Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index 997baeaa869baa6f..7a0e15053db97481 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -78,6 +78,8 @@ Optional properties: - dma-names: Must contain a list of two DMA names, "tx" and "rx". - {cts,dsr,dcd,rng,rts,dtr}-gpios: Specify GPIOs for modem lines, cfr. the generic serial DT bindings in serial.txt. + - uart-has-rtscts: Indicates dedicated lines for RTS/CTS hardware flow + control, cfr. the generic serial DT bindings in serial.txt. Example: aliases { -- 1.9.1