From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB114C43381 for ; Mon, 18 Feb 2019 20:12:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F2B42177E for ; Mon, 18 Feb 2019 20:12:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550520765; bh=QKddjZxMgtM+vjAG0QPLm0BK11D/62GXzu/29im9WC0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=QZdSeYBPoag4dtrcYvK8AEAChIIv4QCBb0bqHRu8f2aadpmwh8uhXG7vrpB3ASvIW oNu40DfRobycFmZM/4orfKJU+JyzDFC270RAdykevpeVZAAsC5JG1Na4/UWM8Y5e90 eWXZJr766aiIys/axOxhiCqmX93RNMxwNQQc3ohE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728884AbfBRUMn (ORCPT ); Mon, 18 Feb 2019 15:12:43 -0500 Received: from mail-ot1-f66.google.com ([209.85.210.66]:34033 "EHLO mail-ot1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727341AbfBRUMm (ORCPT ); Mon, 18 Feb 2019 15:12:42 -0500 Received: by mail-ot1-f66.google.com with SMTP id 98so30477916oty.1; Mon, 18 Feb 2019 12:12:42 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=zAoPARZqeTIrtTwyaGqgW3QnqDwsKNMVTjCfdIpNMIM=; b=ad+Yr3UPhKQeU9ZOgn+5vaBeokYAhJ+PpvBDjrajXyI/maX4fc6BqTTXC7sHRhq22+ tWfB7Y7ug70Fsqg9SsOnaw2paFnUpgsyVPg56Kr07a3cTDfvtrXYMhr08a/4wbw0mOas NyjA9ppoHr4w9YWqINteErYtroTXNOtfEHGf9USbpzZaf6uyVL5whbSjF8JiVjXhpWnp +cfpD+3u6yis54Yksv5tTePZH4Lf5RnBWPxGDbhqFXiFbJwdG7aTjkPBoBbLB5POPeDK 7MNrJkRG6g9HikyZTDZlWeBj6c8Mah5OJSNAo95+g7B2Exua/OP1h8xoaL4nJ2aoS92/ LB3g== X-Gm-Message-State: AHQUAuZXA5+eRljt36GAk5PFQDhuTmJv48cnDONEGIPn0ZF3MSGIy7Ga k6xaafkxKjmnB52FPwZpgxzxlHo= X-Google-Smtp-Source: AHgI3IZwdI3/sRYC2fDFRTosd0gNF4kHlyMGvmjq84ZMLuF+lussNFQnb6BF5JEvlxykHWwIaQkZsA== X-Received: by 2002:aca:30c2:: with SMTP id w185mr360128oiw.163.1550520761588; Mon, 18 Feb 2019 12:12:41 -0800 (PST) Received: from localhost (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id w18sm4408084otp.70.2019.02.18.12.12.40 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 18 Feb 2019 12:12:40 -0800 (PST) Date: Mon, 18 Feb 2019 14:12:40 -0600 From: Rob Herring To: Faiz Abbas Cc: Tony Lindgren , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mmc@vger.kernel.org, linux-omap@vger.kernel.org, ulf.hansson@linaro.org, mark.rutland@arm.com, adrian.hunter@intel.com, kishon@ti.com, zhang.chunyan@linaro.org Subject: Re: [PATCH v2 3/8] dt-bindings: sdhci-omap: Add properties for using external dma Message-ID: <20190218201240.GA14067@bogus> References: <20190215192033.24203-1-faiz_abbas@ti.com> <20190215192033.24203-4-faiz_abbas@ti.com> <20190215200718.GB15711@atomide.com> <2aa0f7e4-c880-ee88-2e88-dc2c3187f0c9@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2aa0f7e4-c880-ee88-2e88-dc2c3187f0c9@ti.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 18, 2019 at 07:11:32PM +0530, Faiz Abbas wrote: > Hi Tony, > > On 16/02/19 1:37 AM, Tony Lindgren wrote: > > * Faiz Abbas [190215 19:18]: > >> From: Chunyan Zhang > >> > >> sdhci-omap can support both external dma controller via dmaengine > >> framework as well as ADMA which standard SD host controller > >> provides. > > > > Care to describe here also how to configure things for ADMA and > > instead of DMA? Just leave out dmas property? > > > > That's correct. If dmas property is populated, then use external DMA. > Otherwise use ADMA/SDMA depending on what you read from the CAPS register. Then the properties should be optional. Rob