From patchwork Thu Sep 20 14:43:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1485761 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 47420DF2D2 for ; Thu, 20 Sep 2012 14:44:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755763Ab2ITOoY (ORCPT ); Thu, 20 Sep 2012 10:44:24 -0400 Received: from mail-ie0-f174.google.com ([209.85.223.174]:41616 "EHLO mail-ie0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755889Ab2ITOme (ORCPT ); Thu, 20 Sep 2012 10:42:34 -0400 Received: by mail-ie0-f174.google.com with SMTP id k13so3502403iea.19 for ; Thu, 20 Sep 2012 07:42:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=jvO7N6DjTQ9uNFe39Lf4LwbWCvlIUQQfQ/1HW+THkZ0=; b=Ff2NhG1S6OhUCSPC7PuUPNWAyXW/6/xEgqDx2+98Q9DlMHq8tTwLJj35mzIVBmaCyU UW5Jmlxna3DxspjU03t/hdFFsMwAjb+e5Ka19U3ylBe1/T+xTjiOcw6mIIL6UsubfRI+ GLPFyQNNlgoE1GHbEvib11+SNxnTPdwliROm7qxrYDgJuKN3O/vxr4hsrRpOTGYg3jRG pwJckmiKQDPSbcmqC9KcNdQXo9y23HUcb3+0gQXx6IhT1zqz/W/BsGB5vmBkzGncAn64 rwz7Tvxeaqlkld0YYNSzmeNF2lD3s05SOkHv7ey8EpFF48syr4YrfKQxMy/4Ke+QsoUi f1kA== Received: by 10.43.12.137 with SMTP id pi9mr1608710icb.26.1348152154157; Thu, 20 Sep 2012 07:42:34 -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 p5sm15288242igm.13.2012.09.20.07.42.32 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 20 Sep 2012 07:42:33 -0700 (PDT) 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: [RFC PATCH 09/13] mmc: omap_hsmmc: add generic DMA request support to the DT binding Date: Thu, 20 Sep 2012 10:43:42 -0400 Message-Id: <1348152226-13588-10-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1348152226-13588-1-git-send-email-mporter@ti.com> References: <1348152226-13588-1-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 --- .../devicetree/bindings/mmc/ti-omap-hsmmc.txt | 25 +++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt index be76a23..d1b8932 100644 --- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt +++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt @@ -19,8 +19,28 @@ ti,dual-volt: boolean, supports dual voltage cards "supply-name" examples are "vmmc", "vmmc_aux" etc ti,non-removable: non-removable slot (like eMMC) ti,needs-special-reset: Requires a special softreset sequence +dmas: DMA controller phandle and DMA request value ordered pair +One tx and one rx pair is required. +dma-names: DMA request names. These strings correspond 1:1 with +the ordered pairs in dmas. The RX request must be "rx" and the +TX request must be "tx". + +Examples: + +[hwmod populated DMA resources] + + mmc1: mmc@0x4809c000 { + compatible = "ti,omap4-hsmmc"; + reg = <0x4809c000 0x400>; + ti,hwmods = "mmc1"; + ti,dual-volt; + bus-width = <4>; + vmmc-supply = <&vmmc>; /* phandle to regulator node */ + ti,non-removable; + }; + +[generic DMA request binding] -Example: mmc1: mmc@0x4809c000 { compatible = "ti,omap4-hsmmc"; reg = <0x4809c000 0x400>; @@ -29,4 +49,7 @@ Example: bus-width = <4>; vmmc-supply = <&vmmc>; /* phandle to regulator node */ ti,non-removable; + dmas = <&edma 24 + &edma 25>; + dma-names = "tx", "rx"; };