From patchwork Fri Jan 11 05:48:49 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1963911 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 86A91DF2A2 for ; Fri, 11 Jan 2013 05:45:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755194Ab3AKFpj (ORCPT ); Fri, 11 Jan 2013 00:45:39 -0500 Received: from mail-qa0-f52.google.com ([209.85.216.52]:33144 "EHLO mail-qa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755115Ab3AKFov (ORCPT ); Fri, 11 Jan 2013 00:44:51 -0500 Received: by mail-qa0-f52.google.com with SMTP id d13so1237784qak.11 for ; Thu, 10 Jan 2013 21:44:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=g1FYtj8i/20E78R3dvOiFGUZpmxI205UOOBV59rtrQU=; b=E7lLRSKQslojYyend6t3CAUsEEkWRZIkh0q23e4o8Mgnag/F0t2c9WiNw8YireWlXy HwXzQcTcmyeTDltdhMDOM5S4wKK27mm+8cxACVwcEMAUwm6YSecWFDGc5E2ChzSAMGOB SCZJaM3L6CAdPKDOzIykMdfbm0Vz6D0s8Li5UDAvEIGs1tHrppHwxKCdb/d5oXiky5aI m7IO8TOBF8X1j13n5MplLh/YpUMnyIhUtHl8WMg4e/FFSDwku6CzZVBERti2KnUApYpp tUhIYVPQRUvTfBiCetfVUhuMwumITGRi60ltfd738kKtINCa7X/ayah5WV4H1wfzQUpY 913g== X-Received: by 10.224.195.138 with SMTP id ec10mr59437358qab.3.1357883090899; Thu, 10 Jan 2013 21:44:50 -0800 (PST) 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 ds8sm1897114qab.18.2013.01.10.21.44.48 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 10 Jan 2013 21:44:50 -0800 (PST) From: Matt Porter To: Tony Lindgren , Sekhar Nori , Grant Likely , Mark Brown , Benoit Cousson , Russell King , Vinod Koul , Rob Landley , Chris Ball Cc: Devicetree Discuss , Linux OMAP List , Linux ARM Kernel List , Linux DaVinci Kernel List , Linux Kernel Mailing List , Linux Documentation List , Linux MMC List , Linux SPI Devel List , Arnd Bergmann , Dan Williams , Rob Herring Subject: [PATCH v4 13/14] spi: omap2-mcspi: add generic DMA request support to the DT binding Date: Fri, 11 Jan 2013 00:48:49 -0500 Message-Id: <1357883330-5364-14-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1357883330-5364-1-git-send-email-mporter@ti.com> References: <1357883330-5364-1-git-send-email-mporter@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org The binding definition is based on the generic DMA request binding. Signed-off-by: Matt Porter --- Documentation/devicetree/bindings/spi/omap-spi.txt | 28 +++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt b/Documentation/devicetree/bindings/spi/omap-spi.txt index 938809c..3bd8eed 100644 --- a/Documentation/devicetree/bindings/spi/omap-spi.txt +++ b/Documentation/devicetree/bindings/spi/omap-spi.txt @@ -10,7 +10,18 @@ Required properties: input. The default is D0 as input and D1 as output. -Example: +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. + +Examples: + +[hwmod populated DMA resources] mcspi1: mcspi@1 { #address-cells = <1>; @@ -20,3 +31,18 @@ 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"; +}; +