From patchwork Tue Mar 5 21:13:24 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 2222041 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 02303DFE75 for ; Tue, 5 Mar 2013 21:13:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758186Ab3CEVNP (ORCPT ); Tue, 5 Mar 2013 16:13:15 -0500 Received: from mail-ia0-f175.google.com ([209.85.210.175]:46687 "EHLO mail-ia0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757880Ab3CEVNE (ORCPT ); Tue, 5 Mar 2013 16:13:04 -0500 Received: by mail-ia0-f175.google.com with SMTP id k38so4504944iah.34 for ; Tue, 05 Mar 2013 13:13:04 -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=Rya6TiO8XMRb5dr21W/kKPsrlD0jGfay48V/6CCOKOE=; b=jlkHcu4ymvcvvzQEZO8rae8196tji7GYfN0StF1z1Q5f6jmK2w24s+fFvNnB5oukcO JR9OEjsXQWdtSCjZ1zm4c849Fx9lcKo8UUr5BPWIjG1cTtnXZDn3832WUVU4k51GfsDO TKFCuYXM0uCjiq0ozdUOojnBB0dBC0ZywD/qwO0tSUGOsjfy3Ag/YYN+pK3Ct74tQ2KZ 7Tu6Wy4E5OK0ERt7JM9iAnhL5yx1u+wANLv7LeimgRKJycGjqba9Tq8dkaC6DrIz0zT+ oOzPQ5nSJmlps447n9a2KK4un0faZqajq3WF0DZDV0mqceNSSf5RTRnniyV5wVso3P5b PLvw== X-Received: by 10.43.135.68 with SMTP id if4mr28179643icc.44.1362517983990; Tue, 05 Mar 2013 13:13:03 -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 in10sm16921383igc.1.2013.03.05.13.13.02 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 05 Mar 2013 13:13:03 -0800 (PST) From: Matt Porter To: Balaji T K , Chris Ball , Grant Likely , Rob Herring Cc: Vinod Koul , Tony Lindgren , Devicetree Discuss , Linux OMAP List , Linux Kernel Mailing List , Linux MMC List , Arnd Bergmann , Dan Williams , Jon Hunter , Santosh Shilimkar Subject: [PATCH v2 3/3] mmc: omap_hsmmc: add generic DMA request support to the DT binding Date: Tue, 5 Mar 2013 16:13:24 -0500 Message-Id: <1362518004-7083-4-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1362518004-7083-1-git-send-email-mporter@ti.com> References: <1362518004-7083-1-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 | 26 +++++++++++++++++++- 1 file changed, 25 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..8c8908a 100644 --- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt +++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt @@ -20,8 +20,29 @@ 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: List of DMA specifiers with the controller specific format +as described in the generic DMA client binding. A tx and rx +specifier is required. +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 "rx" and "tx" for RX and TX DMA requests, respectively. + +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 +51,7 @@ Example: bus-width = <4>; vmmc-supply = <&vmmc>; /* phandle to regulator node */ ti,non-removable; + dmas = <&edma 24 + &edma 25>; + dma-names = "tx", "rx"; };