From patchwork Wed Jun 26 01:24:54 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Fernandes, Joel A" X-Patchwork-Id: 2781731 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 710269F968 for ; Wed, 26 Jun 2013 01:25:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9763720249 for ; Wed, 26 Jun 2013 01:25:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B06B62023A for ; Wed, 26 Jun 2013 01:25:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752073Ab3FZBZh (ORCPT ); Tue, 25 Jun 2013 21:25:37 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:49168 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751588Ab3FZBZf (ORCPT ); Tue, 25 Jun 2013 21:25:35 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id r5Q1OuWC013457; Tue, 25 Jun 2013 20:24:56 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r5Q1Ouvw003769; Tue, 25 Jun 2013 20:24:56 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Tue, 25 Jun 2013 20:24:56 -0500 Received: from localhost.localdomain (h0-133.vpn.ti.com [172.24.0.133]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r5Q1OsWb026491; Tue, 25 Jun 2013 20:24:55 -0500 From: Joel A Fernandes To: Tony Lindgren , Sekhar Nori , Matt Porter , Grant Likely , Rob Herring , Vinod Koul , Mark Brown , Benoit Cousson , Russell King , Rob Landley , Andrew Morton , Jason Kridner , Koen Kooi , Balaji TK , 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 Subject: [PATCH 4/5] mmc: omap_hsmmc: add generic DMA request support to the DT binding Date: Tue, 25 Jun 2013 20:24:54 -0500 Message-ID: <1372209894-6682-1-git-send-email-joelagnel@ti.com> X-Mailer: git-send-email 1.7.0.4 MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Matt Porter The binding definition is based on the generic DMA request binding. Signed-off-by: Matt Porter Acked-by: Tony Lindgren Acked-by: Arnd Bergmann --- .../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"; };