From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.29]) by ozlabs.org (Postfix) with ESMTP id 9BA52DDE03 for ; Mon, 7 Jul 2008 03:56:57 +1000 (EST) Received: by yw-out-2324.google.com with SMTP id 5so861762ywh.39 for ; Sun, 06 Jul 2008 10:56:48 -0700 (PDT) Message-ID: <9e4733910807061056m7b0dbf1fr578cbfcda31586ea@mail.gmail.com> Date: Sun, 6 Jul 2008 13:56:48 -0400 From: "Jon Smirl" To: "Grant Likely" Subject: Re: [alsa-devel] [PATCH 2/3] ALSA SoC: Add mpc5200-psc I2S driver In-Reply-To: <20080701235335.16923.43253.stgit@trillian.secretlab.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <20080701235330.16923.67218.stgit@trillian.secretlab.ca> <20080701235335.16923.43253.stgit@trillian.secretlab.ca> Cc: liam.girdwood@wolfsonmicro.com, alsa-devel@alsa-project.org, broonie@opensource.wolfsonmicro.com, timur@freescale.com, linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 7/1/08, Grant Likely wrote: > From: Grant Likely > > This is an I2S bus driver for the MPC5200 PSC device. It is probably > will not be merged as-is because it uses v1 of the ASoC API, but I want > to get it out there for comments. > --- The driver is assuming a capture stream exists. My codec is output only. I'm using external clocking, but the driver should support using the mpc5200 for clocking. That's a little complicated since you have to compute the divisors. For example the Phytec pcm030 board has a 33.3333Mhz xtal and runs at 400Mhz. In order to reduce options, can the psc-i2s driver always try to use mpc5200 clocking, then let the codec or fabric driver override it? -- Jon Smirl jonsmirl@gmail.com