From patchwork Thu Oct 18 13:26:54 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1610361 Return-Path: X-Original-To: patchwork-spi-devel-general@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) by patchwork1.kernel.org (Postfix) with ESMTP id 785B33FC1A for ; Thu, 18 Oct 2012 13:26:20 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=sfs-ml-2.b.ch3.sourceforge.com) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1TOq7A-0004Dm-7G; Thu, 18 Oct 2012 13:26:20 +0000 Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1TOq79-0004Dd-7r for spi-devel-general@lists.sourceforge.net; Thu, 18 Oct 2012 13:26:19 +0000 Received-SPF: pass (sog-mx-2.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.210.175 as permitted sender) client-ip=209.85.210.175; envelope-from=ohiomdp@gmail.com; helo=mail-ia0-f175.google.com; Received: from mail-ia0-f175.google.com ([209.85.210.175]) by sog-mx-2.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1TOq74-0001v7-1T for spi-devel-general@lists.sourceforge.net; Thu, 18 Oct 2012 13:26:19 +0000 Received: by mail-ia0-f175.google.com with SMTP id b35so6745498iac.34 for ; Thu, 18 Oct 2012 06:26:14 -0700 (PDT) Received: by 10.50.152.194 with SMTP id va2mr1039337igb.25.1350566773890; Thu, 18 Oct 2012 06:26:13 -0700 (PDT) Received: from beef.ohporter.com (cpe-24-166-64-7.neo.res.rr.com. [24.166.64.7]) by mx.google.com with ESMTPS id x7sm14244186igk.8.2012.10.18.06.26.11 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 18 Oct 2012 06:26:12 -0700 (PDT) From: Matt Porter To: Tony Lindgren , Sekhar Nori , Grant Likely , Mark Brown , Benoit Cousson , Russell King , Vinod Koul , Rob Landley , Chris Ball Subject: [RFC PATCH v3 15/16] spi: omap2-mcspi: add generic DMA request support to the DT binding Date: Thu, 18 Oct 2012 09:26:54 -0400 Message-Id: <1350566815-409-16-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1350566815-409-1-git-send-email-mporter@ti.com> References: <1350566815-409-1-git-send-email-mporter@ti.com> X-Spam-Score: -1.6 (-) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (ohiomdp[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 AWL AWL: From: address is in the auto white-list X-Headers-End: 1TOq74-0001v7-1T Cc: Linux DaVinci Kernel List , Arnd Bergmann , Linux Documentation List , Devicetree Discuss , Linux MMC List , Linux Kernel Mailing List , Rob Herring , Dan Williams , Linux SPI Devel List , Linux OMAP List , Linux ARM Kernel List X-BeenThere: spi-devel-general@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Linux SPI core/device drivers discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: spi-devel-general-bounces@lists.sourceforge.net The binding definition is based on the generic DMA request binding. Signed-off-by: Matt Porter --- Documentation/devicetree/bindings/spi/omap-spi.txt | 27 +++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt b/Documentation/devicetree/bindings/spi/omap-spi.txt index 81df374..11aff04 100644 --- a/Documentation/devicetree/bindings/spi/omap-spi.txt +++ b/Documentation/devicetree/bindings/spi/omap-spi.txt @@ -7,8 +7,18 @@ Required properties: - ti,spi-num-cs : Number of chipselect supported by the instance. - ti,hwmods: Name of the hwmod associated to the McSPI +Optional properties: +- dmas: List of DMA controller phandle and DMA request ordered + pairs. One tx and one rx pair is required for each chip + select. +- dma-names: List of DMA request names. These strings correspond + 1:1 with the ordered pairs in dmas. The string naming is + to be "rxN" and "txN" for RX and TX requests, + respectively, where N equals the chip select number. -Example: +Examples: + +[hwmod populated DMA resources] mcspi1: mcspi@1 { #address-cells = <1>; @@ -18,3 +28,18 @@ mcspi1: mcspi@1 { ti,spi-num-cs = <4>; }; +[generic DMA request binding] + +mcspi1: mcspi@1 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,omap4-mcspi"; + ti,hwmods = "mcspi1"; + ti,spi-num-cs = <2>; + dmas = <&edma 42 + &edma 43 + &edma 44 + &edma 45>; + dma-names = "tx0", "rx0", "tx1", "rx1"; +}; +