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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 E79A4C76191 for ; Thu, 25 Jul 2019 10:27:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BD9F222BEF for ; Thu, 25 Jul 2019 10:27:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564050448; bh=yIW36v6BxYIlCrKZEEkenceCjMmchU/hjIQC0JWlt2w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=lTApIlulxcvlxM0SCrmOvdN65c8u04Nj4P8P4d2lwSDN2tpWNJkRBh4pVlnnX10MS IL+0z5hoKYSTWyUhFRLJ+wHgn0rpLB3E/rC2TKB8SPo1LC4kHCoxglDQLB0vcJLoVW wjX/ECGCwipu7YEVRo3yF3emPmISbQhIdg1yEC9E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729066AbfGYK11 (ORCPT ); Thu, 25 Jul 2019 06:27:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:48804 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728603AbfGYK11 (ORCPT ); Thu, 25 Jul 2019 06:27:27 -0400 Received: from localhost (unknown [106.200.241.217]) (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 AB5CF2190F; Thu, 25 Jul 2019 10:27:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564050446; bh=yIW36v6BxYIlCrKZEEkenceCjMmchU/hjIQC0JWlt2w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VnjJ+w7vveNogrQ+DajuMqa6r0vuSfC8fxf2AegJEBwFQSMTqsEIQrwAZoTAvV2nf 9b1UcA68LP207iBHUcnx1MlXMqZ/GxOwFVpSu9O223mHVtKriQhlqdpdmLCbdIgViI clegjpyuCGGN+fIAM8IczxNWh1hJqiE1uETDIC/A= Date: Thu, 25 Jul 2019 15:56:13 +0530 From: Vinod Koul To: Dmitry Osipenko Cc: Laxman Dewangan , Thierry Reding , Jonathan Hunter , Ben Dooks , dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5] dmaengine: tegra-apb: Support per-burst residue granularity Message-ID: <20190725102613.GT12733@vkoul-mobl.Dlink> References: <20190705150519.18171-1-digetx@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190705150519.18171-1-digetx@gmail.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org On 05-07-19, 18:05, Dmitry Osipenko wrote: > Tegra's APB DMA engine updates words counter after each transferred burst > of data, hence it can report transfer's residual with more fidelity which > may be required in cases like audio playback. In particular this fixes > audio stuttering during playback in a chromium web browser. The patch is > based on the original work that was made by Ben Dooks and a patch from > downstream kernel. It was tested on Tegra20 and Tegra30 devices. Applied, thanks -- ~Vinod