From patchwork Tue Mar 5 20:53:14 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 2221631 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id E809740077 for ; Tue, 5 Mar 2013 20:54:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759272Ab3CEUxo (ORCPT ); Tue, 5 Mar 2013 15:53:44 -0500 Received: from mail-ie0-f175.google.com ([209.85.223.175]:56066 "EHLO mail-ie0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757151Ab3CEUxH (ORCPT ); Tue, 5 Mar 2013 15:53:07 -0500 Received: by mail-ie0-f175.google.com with SMTP id c12so8247746ieb.20 for ; Tue, 05 Mar 2013 12:53:06 -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=zhrulqBOTrOYjfV1QuhQ6sK2kKp0SUa4uwjEt4y1aiE=; b=e7z/xNJp6RDbwso9Ofe9Q7SYLcLtNk1VowOvKomS1FojSFoj1hLOv1/5y9981zX8jS FZDtkZNLU/G26Ws1ChD7ior1heW3p94ti/EDqczoXzWOZoHGgw73g9+wk3twR41DyHED BLCJfKKOyTBdNOfhhxBLApIpB4ylhmnp6EUZqCPwn987eMUg/uzEc+Jq/cBpDvi1J+vx hLa53oGwtZ/C4xbJ/430EPqE+PGkI41MWbkh+Dhch3w1yIHgk9ntL2qHwMecVxNXf6ac JOtwGNwbid0SRzS9HrzKHZ4zXMJ8viIQ7JBuDfu8VBZqdulX2XvPXBLorPQQ3tRtfQ2X U5jg== X-Received: by 10.42.54.5 with SMTP id p5mr28402405icg.49.1362516786282; Tue, 05 Mar 2013 12:53:06 -0800 (PST) Received: from beef.ohporter.com (cpe-98-27-254-98.neo.res.rr.com. [98.27.254.98]) by mx.google.com with ESMTPS id gy3sm19430914igc.10.2013.03.05.12.53.04 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 05 Mar 2013 12:53:05 -0800 (PST) From: Matt Porter To: Tony Lindgren , Sekhar Nori , Grant Likely , Mark Brown , Benoit Cousson , Russell King , Rob Landley 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 , Rob Herring Subject: [PATCH v8 8/9] spi: omap2-mcspi: add generic DMA request support to the DT binding Date: Tue, 5 Mar 2013 15:53:14 -0500 Message-Id: <1362516795-6346-9-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1362516795-6346-1-git-send-email-mporter@ti.com> References: <1362516795-6346-1-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 | 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 938809c..4c85c4c 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 specifiers with the controller specific format + as described in the generic DMA client binding. A tx and rx + specifier is required for each chip select. +- dma-names: List of DMA request names. These strings correspond + 1:1 with the DMA specifiers listed 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 +31,17 @@ 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"; +};