From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH 4/4] ASoC: Flag the i.MX SSI driver as using symmetric rates Date: Mon, 11 Jan 2010 11:51:01 +0000 Message-ID: <20100111115101.GA8471@rakim.wolfsonmicro.main> References: <1262967598-4096-1-git-send-email-broonie@opensource.wolfsonmicro.com> <1262967598-4096-4-git-send-email-broonie@opensource.wolfsonmicro.com> <20100111112047.GT6923@pengutronix.de> <20100111113631.GE3440@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from opensource2.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id BAEAD103800 for ; Mon, 11 Jan 2010 12:51:02 +0100 (CET) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: javier Martin Cc: Timur Tabi , Sascha Hauer , alsa-devel@alsa-project.org, Liam Girdwood List-Id: alsa-devel@alsa-project.org On Mon, Jan 11, 2010 at 12:39:13PM +0100, javier Martin wrote: > However, > I think it would be a good idea to add an optional flag to activate > symmetric rate. > Understanding it as TX and RX SSI sections sharing the same CLKs. > This is necessary for some codecs like wm8974 to work because they can only > provide > one BCLK and FCLK for both directions. That's not what the patch does - it only sets the symmetric_rates flag, which can also be flagged from the machine driver, which adds some constraints for applications so you can't configure asymmetric rates. It doesn't affect the hardware configuration at all.