From patchwork Fri Apr 3 17:01:15 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 457990 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 7FD7814028E for ; Sat, 4 Apr 2015 04:03:05 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="verification failed; unprotected key" header.d=gmail.com header.i=@gmail.com header.b=o4UPnXtt; dkim-adsp=none (unprotected policy); dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753255AbbDCRCy (ORCPT ); Fri, 3 Apr 2015 13:02:54 -0400 Received: from mail-wi0-f182.google.com ([209.85.212.182]:33347 "EHLO mail-wi0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753123AbbDCRCk (ORCPT ); Fri, 3 Apr 2015 13:02:40 -0400 Received: by wixm2 with SMTP id m2so76307691wix.0; Fri, 03 Apr 2015 10:02:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=QOUW8AJiCis/12pro6x47kCR9iVGnlv8t31Y6d4Ae40=; b=o4UPnXtt9NNc7Ot4Bg43MPF13TMBct0Ta+hqJ1tCCGmgY96uvE6bnQEhYpizyQVyDd 1CPM9/hJmRWFDt0knNzpIldlAU7vqirUXPFsTzW6k/ZU/IRdMwjnUYq3FttKioV7/VMv yLYx/e8aAYXB82vIND2utSgQ1/kiCL9GDVJLXZdl0pRnJCXwVNVzxsQgU5rD25d9AfJ4 rKdXArSmeSL245JDPE5oLxIrUU6f1NbMtJ8R574Xm8OyrToppoUWUI65bM5bb3iNp3DG +ntorlPKvbCEvQEbe0mk14t7zF/SG84fx7LHfN6GVquNBUr5drVJqp/dOtsVfZI2VQYu TFoQ== X-Received: by 10.180.8.69 with SMTP id p5mr7186855wia.69.1428080557851; Fri, 03 Apr 2015 10:02:37 -0700 (PDT) Received: from lmecul0520.st.com. (57.26.90.92.rev.sfr.net. [92.90.26.57]) by mx.google.com with ESMTPSA id cf12sm12243851wjb.10.2015.04.03.10.02.34 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 03 Apr 2015 10:02:37 -0700 (PDT) From: Maxime Coquelin To: u.kleine-koenig@pengutronix.de, afaerber@suse.de, geert@linux-m68k.org, Rob Herring , Philipp Zabel , Linus Walleij , Arnd Bergmann , stefan@agner.ch, pmeerw@pmeerw.net, pebolle@tiscali.nl, peter@hurleysoftware.com, andy.shevchenko@gmail.com, cw00.choi@samsung.com, Russell King , Daniel Lezcano Cc: Jonathan Corbet , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Thomas Gleixner , Greg Kroah-Hartman , Jiri Slaby , Andrew Morton , "David S. Miller" , Mauro Carvalho Chehab , Joe Perches , Antti Palosaari , Tejun Heo , Will Deacon , Nikolay Borisov , Rusty Russell , Kees Cook , Michal Marek , linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, mcoquelin.stm32@gmail.com Subject: [PATCH v5 09/15] dt-bindings: Document the STM32 USART bindings Date: Fri, 3 Apr 2015 19:01:15 +0200 Message-Id: <1428080481-18591-10-git-send-email-mcoquelin.stm32@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1428080481-18591-1-git-send-email-mcoquelin.stm32@gmail.com> References: <1428080481-18591-1-git-send-email-mcoquelin.stm32@gmail.com> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org This adds documentation of device tree bindings for the STM32 USART Tested-by: Chanwoo Choi Signed-off-by: Maxime Coquelin --- .../devicetree/bindings/serial/st,stm32-usart.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/st,stm32-usart.txt diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt new file mode 100644 index 0000000..090a3a4 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt @@ -0,0 +1,32 @@ +* STMicroelectronics STM32 USART + +Required properties: +- compatible: Can be either "st,stm32-usart" or "st,stm32-uart" depending on +whether the device supports synchronous mode. +- reg: The address and length of the peripheral registers space +- interrupts: The interrupt line of the USART instance +- clocks: The input clock of the USART instance + +Optional properties: +- pinctrl: The reference on the pins configuration +- st,hw-flow-ctrl: bool flag to enable hardware flow control. + +Examples: +usart4: serial@40004c00 { + compatible = "st,stm32-uart"; + reg = <0x40004c00 0x400>; + interrupts = <52>; + clocks = <&clk_pclk1>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usart4>; +}; + +usart2: serial@40004400 { + compatible = "st,stm32-usart", "st,stm32-uart"; + reg = <0x40004400 0x400>; + interrupts = <38>; + clocks = <&clk_pclk1>; + st,hw-flow-ctrl; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>; +};