From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sven Zeisberg Subject: Re: imx-ssi in master mode? Date: Mon, 30 Aug 2010 08:32:52 +0200 Message-ID: <4C7B5094.4020907@googlemail.com> References: <4C768708.50903@googlemail.com> <20100827115416.GD1473@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-fx0-f51.google.com (mail-fx0-f51.google.com [209.85.161.51]) by alsa0.perex.cz (Postfix) with ESMTP id 0D32424458 for ; Mon, 30 Aug 2010 08:32:56 +0200 (CEST) Received: by fxm11 with SMTP id 11so3097668fxm.38 for ; Sun, 29 Aug 2010 23:32:55 -0700 (PDT) In-Reply-To: <20100827115416.GD1473@pengutronix.de> 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: alsa-devel@alsa-project.org Cc: Sascha Hauer List-Id: alsa-devel@alsa-project.org Hi Sascha, again - thanks for your help! We start working on this now and hopefully return soon with results... Sven Am 27.08.2010 13:54, schrieb Sascha Hauer: > On Thu, Aug 26, 2010 at 05:23:53PM +0200, Sven Zeisberg wrote: >> Hi >> >> I found that the i.MX25 can not transfer multichannels frames through >> SSI when it is set up as slave. >> (when the i.MX25 SSI is set up as slave, the SSI is set to "normal" mode >> in which only one word per frame is transfered) >> >> Now I'm wondering if anybody has successfully used a codec with the >> i.MX25 SSI set up as Master. When we do this here, we can see that the >> i.MX25 is generating the bit clock but no frame sync. > Master mode is currently not supported by the i.MX driver. You'd have to > implement the clk_get_rate functions for the ssi clocks first before > implementing the missing pieces in the driver. > > Sascha > >