From patchwork Tue Jan 15 20:32:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1980801 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 C264E3FC85 for ; Tue, 15 Jan 2013 20:30:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757165Ab3AOU2l (ORCPT ); Tue, 15 Jan 2013 15:28:41 -0500 Received: from mail-qc0-f174.google.com ([209.85.216.174]:38575 "EHLO mail-qc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757138Ab3AOU2f (ORCPT ); Tue, 15 Jan 2013 15:28:35 -0500 Received: by mail-qc0-f174.google.com with SMTP id o22so359800qcr.5 for ; Tue, 15 Jan 2013 12:28:34 -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=MbmTdttpNoTQoNrWusK60FZujT6YQnejO03KOkdHuM4=; b=AQJXMTfCQcaqV57TbcA9CvF+yqVwg228D5ByWfxAhsUU7TW7SxKPFY1d5OJ31Ec7u0 Uhv4lQW66pR+rkmFmg4+VJo0hGJwRz1ZbWrSDnBWMpZW13VRlEDYDJMkUil1hEkxuxGA SlqHWJ7kPHsvKXGbzokaU6VZOkGTGdUfS3tWMRyYa7JZ6BMudS3Ufge+uSL1FTMPVtP/ XFF3D7TFD7JkzEAsFrUJWMujPJj0sNt6O0bGR2CezJ9KkLNezcTjHdDu9WVNd1DbK0Go LH7sxgjJU3xB8k5puEWgK9xOvUsa9YlOxVAS+dk3wGBy4uftJTfw4vEBBA7gxDO9Drig WtKw== X-Received: by 10.49.71.204 with SMTP id x12mr89242448qeu.47.1358281714530; Tue, 15 Jan 2013 12:28:34 -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 gw9sm4308048qab.10.2013.01.15.12.28.31 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 15 Jan 2013 12:28:33 -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 v5 10/14] mmc: omap_hsmmc: add generic DMA request support to the DT binding Date: Tue, 15 Jan 2013 15:32:50 -0500 Message-Id: <1358281974-8411-11-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1358281974-8411-1-git-send-email-mporter@ti.com> References: <1358281974-8411-1-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 Acked-by: Tony Lindgren --- .../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 ed271fc..826cc51 100644 --- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt +++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt @@ -20,8 +20,28 @@ ti,dual-volt: boolean, supports dual voltage cards ti,non-removable: non-removable slot (like eMMC) ti,needs-special-reset: Requires a special softreset sequence ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed +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>; @@ -30,4 +50,7 @@ Example: bus-width = <4>; vmmc-supply = <&vmmc>; /* phandle to regulator node */ ti,non-removable; + dmas = <&edma 24 + &edma 25>; + dma-names = "tx", "rx"; };