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=-1.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,URIBL_BLOCKED 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 BB006C43381 for ; Mon, 18 Feb 2019 13:38:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80C7C21872 for ; Mon, 18 Feb 2019 13:38:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="qKoNlwCc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731130AbfBRNi3 (ORCPT ); Mon, 18 Feb 2019 08:38:29 -0500 Received: from lelv0143.ext.ti.com ([198.47.23.248]:39636 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729863AbfBRNi3 (ORCPT ); Mon, 18 Feb 2019 08:38:29 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x1IDcL81108709; Mon, 18 Feb 2019 07:38:21 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1550497101; bh=O2Ngd/EkZl30AhJzB4W4SRuWcLF7RsbS6QfEfk+DNhY=; h=Subject:To:CC:References:From:Date:In-Reply-To; b=qKoNlwCcNwii1XoSy+1oepM8SXqc88dRrVM4+eOPOz4/yd2WWfUCFA38rerA+/Rja NJdgYzhAQXRz4VgBEDZSAg/76CSa1XXcMtGnSfP02+Z0wsp0t3c3tCnC3Mk8xBTZzI SMZNHzLhNlTpNBD5rId1xKdWsh1RIMv1O3Kv+xEE= Received: from DLEE104.ent.ti.com (dlee104.ent.ti.com [157.170.170.34]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x1IDcKXa109904 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 18 Feb 2019 07:38:20 -0600 Received: from DLEE107.ent.ti.com (157.170.170.37) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Mon, 18 Feb 2019 07:38:20 -0600 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1591.10 via Frontend Transport; Mon, 18 Feb 2019 07:38:20 -0600 Received: from [172.24.190.215] (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id x1IDcGB1012991; Mon, 18 Feb 2019 07:38:17 -0600 Subject: Re: [PATCH v2 3/8] dt-bindings: sdhci-omap: Add properties for using external dma To: Tony Lindgren CC: , , , , , , , , , References: <20190215192033.24203-1-faiz_abbas@ti.com> <20190215192033.24203-4-faiz_abbas@ti.com> <20190215200718.GB15711@atomide.com> From: Faiz Abbas Message-ID: <2aa0f7e4-c880-ee88-2e88-dc2c3187f0c9@ti.com> Date: Mon, 18 Feb 2019 19:11:32 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <20190215200718.GB15711@atomide.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Thanks, Faiz