From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: Error with "Unsigned 8 bit, Rate 8000 Hz, Mono" track Date: Fri, 10 Aug 2012 12:31:09 +0100 Message-ID: <20120810113109.GI24328@opensource.wolfsonmicro.com> References: <20120810110004.GA7142@shlinux2.ap.freescale.net> 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 17372266520 for ; Fri, 10 Aug 2012 13:01:26 +0200 (CEST) Content-Disposition: inline In-Reply-To: <20120810110004.GA7142@shlinux2.ap.freescale.net> 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: Dong Aisheng Cc: "alsa-devel@alsa-project.org" , Shawn Guo , Fabio Estevam , Lauri Hintsala List-Id: alsa-devel@alsa-project.org On Fri, Aug 10, 2012 at 07:00:05PM +0800, Dong Aisheng wrote: > Since sgtl5000 on slave mode, the mclk can only be 256*fs, 384*fs, 512*fs, > the maximum mclk of 8Khz 4096000(512 * 8000) < 8Mhz, it does not meet > the minimum clock requirement of mclk. > It looks like hw limitation on slave mode. > Will spend some time double check if any solution for this later. > If anyone else know it, please share the comments. The CODEC driver ought to be setting a constraint for this if there's no way it can support 8kHz in slave mode.