From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH] ASoC: tegra: fix maxburst settings in dmaengine code Date: Fri, 7 Sep 2012 09:51:57 +0800 Message-ID: <20120907015155.GA6827@opensource.wolfsonmicro.com> References: <1346975253-2935-1-git-send-email-swarren@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id 225F2261662 for ; Fri, 7 Sep 2012 03:52:10 +0200 (CEST) Content-Disposition: inline In-Reply-To: <1346975253-2935-1-git-send-email-swarren@wwwdotorg.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Stephen Warren Cc: linux-tegra@vger.kernel.org, alsa-devel@alsa-project.org, Laxman Dewangan , Stephen Warren , Liam Girdwood List-Id: alsa-devel@alsa-project.org On Thu, Sep 06, 2012 at 05:47:33PM -0600, Stephen Warren wrote: > From: Stephen Warren > > The I2S controllers are programmed with an "attention" level of 4 DWORDs. > This must match the configuration passed to the DMA driver, so that when > they burst in data, they don't overflow the available FIFO space. Also, > the burst size is relevant to the destination for playback, and source > for capture, not vice-versa as originally written. Applied, thanks.