From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.28]) by ozlabs.org (Postfix) with ESMTP id 5656EDDDD8 for ; Fri, 28 Nov 2008 02:25:01 +1100 (EST) Received: by yw-out-2324.google.com with SMTP id 5so428120ywh.39 for ; Thu, 27 Nov 2008 07:24:59 -0800 (PST) Message-ID: Date: Thu, 27 Nov 2008 09:24:59 -0600 From: "Timur Tabi" Sender: timur.tabi@gmail.com To: "Andre Schwarz" Subject: Re: i2c-mpc clocking scheme In-Reply-To: <492EB606.9020703@matrix-vision.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <492EB606.9020703@matrix-vision.de> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, Nov 27, 2008 at 9:00 AM, Andre Schwarz wrote: > All, > > is anybody working on some improvements regarding configurable I2C > frequency inside the i2c-mpc driver ? > > If not - would anybody be intersted in getting this done, i.e. > configurable via device tree ? Maybe I'm missing something, but U-Boot configures the I2C bus speed. It does this because the algorithm is specific to the SOC itself. For example, the 8544 is different from the 8548. It would be a mess to duplicate this code in the kernel. -- Timur Tabi Linux kernel developer at Freescale