From patchwork Thu Oct 18 13:26:51 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1610491 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 0F032DFB34 for ; Thu, 18 Oct 2012 13:27:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755889Ab2JRN0L (ORCPT ); Thu, 18 Oct 2012 09:26:11 -0400 Received: from mail-ia0-f174.google.com ([209.85.210.174]:61187 "EHLO mail-ia0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755774Ab2JRN0H (ORCPT ); Thu, 18 Oct 2012 09:26:07 -0400 Received: by mail-ia0-f174.google.com with SMTP id y32so6308842iag.19 for ; Thu, 18 Oct 2012 06:26:07 -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=yHoFRkUTLcBmRvjP7MJ02EC13S13vaXl8FW3yavXcFZgN8SvMCFl6gSELNd4B5MDRa h5AcIbMyJ5qLeAf0cSoZMPwNFS4vlHJRx8p0XHlPO1tBVSw3UFIZYZPh4V9X/mvyN+ta b7PluzTy2AIZICbldTAklLqPrUbzRXqXvoXFDNN3C5N3nRBuibsa5SD0ZMyNqeV+mR8p lkjNMB7MTxNtJHG/HukUJPBCYf848regU5MuGvRIEUUXGj8NsBbbZcxc8hJzX59wmyiX 2tXumGDpCRtWRWU+4DIqv4U8g7y8rpp0J38b7qNNrHn9JI+XUyoskSEnfF0gPEs/D1Ct sKMw== Received: by 10.42.91.75 with SMTP id o11mr16966551icm.57.1350566767282; Thu, 18 Oct 2012 06:26:07 -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 x7sm14244186igk.8.2012.10.18.06.26.04 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 18 Oct 2012 06:26:06 -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 v3 12/16] mmc: omap_hsmmc: add generic DMA request support to the DT binding Date: Thu, 18 Oct 2012 09:26:51 -0400 Message-Id: <1350566815-409-13-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1350566815-409-1-git-send-email-mporter@ti.com> References: <1350566815-409-1-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"; };