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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 CF7DFC54FCB for ; Mon, 27 Apr 2020 16:10:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F4BA20661 for ; Mon, 27 Apr 2020 16:10:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588003843; bh=6y+UP73Vxjpn15HNvNYlaPBEXH1uzwIZb3nl5q1GqOQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=BOFNx3lwuk0pnjXyko2VjrCrOQyeCUNU71cS+VdIVc3hWup6s1p7tXrhhU09hKeW3 J9pUFhkIMhrTTtLQR9rHWWMlpxJ1NCAGFv39FpQQNI+b3ZeVhwyUdUAgc2S1i3upaD GomgJuJr120ixpOQzuvzaW7fEuyAqASE8xgqzAcc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728283AbgD0QKn (ORCPT ); Mon, 27 Apr 2020 12:10:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:40298 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726000AbgD0QKm (ORCPT ); Mon, 27 Apr 2020 12:10:42 -0400 Received: from localhost (unknown [171.76.79.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D2FC8205C9; Mon, 27 Apr 2020 16:10:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588003842; bh=6y+UP73Vxjpn15HNvNYlaPBEXH1uzwIZb3nl5q1GqOQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=aR1yAoAqwS+RgrXbE1AAsuiTXEZV7W92AcrPzeyict0PPlEUiEHKWRkvmzMO4oKO1 8t1vZ23bc52pz9LNTyHP2+DXUHAnnbaSQ9r7UrlG/lPkXnZN2nk3zjzIC/SsQo75Oa DMs/H54jSMbM7I0mxVYOer0nm3Bobcrh/qb1G+S0= Date: Mon, 27 Apr 2020 21:40:38 +0530 From: Vinod Koul To: Amelie Delaunay Cc: Rob Herring , Dan Williams , Maxime Coquelin , Alexandre Torgue , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Pierre-Yves Mordret Subject: Re: [PATCH 0/2] STM32 DMA Direct mode Message-ID: <20200427161038.GJ56386@vkoul-mobl.Dlink> References: <20200422102904.1448-1-amelie.delaunay@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200422102904.1448-1-amelie.delaunay@st.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 22-04-20, 12:29, Amelie Delaunay wrote: > By default, the driver compute if the FIFO must operate in direct mode or with > FIFO threshold. Direct mode is allowed only if computed source burst and > destination burst are disabled. But with memory source or destination, burst > is always > 0. > Direct mode is useful when the peripheral requires an immediate and single > transfer to or from the memory after each DMA request. > This patchset adds a way to force Direct mode through device tree. Applied, thanks -- ~Vinod