From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guennadi Liakhovetski Subject: Re: [PATCH 2/4 v8] i.MX31: Image Processing Unit DMA and IRQ drivers Date: Thu, 22 Jan 2009 20:04:43 +0100 (CET) Message-ID: References: <4978C01B.8080707@epfl.ch> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sfi-mx-1.v28.ch3.sourceforge.com ([172.29.28.121] helo=mx.sourceforge.net) by 235xhf1.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1LQ4rP-0006zK-Ab for linux-fbdev-devel@lists.sourceforge.net; Thu, 22 Jan 2009 19:05:03 +0000 Received: from mail.gmx.net ([213.165.64.20]) by 29vjzd1.ch3.sourceforge.com with smtp (Exim 4.69) id 1LQ4rF-0002Fc-Ul for linux-fbdev-devel@lists.sourceforge.net; Thu, 22 Jan 2009 19:05:03 +0000 In-Reply-To: <4978C01B.8080707@epfl.ch> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: Valentin Longchamp Cc: "linux-fbdev-devel@lists.sourceforge.net" , Dan Williams , "linux-arm-kernel@lists.arm.linux.org.uk" On Thu, 22 Jan 2009, Valentin Longchamp wrote: > Hi Guennadi, > > I wanted to test this driver on my board. However it does not work for > me. I have pulled the version that is on async-tx tree so it should be > up to date and it compiles fine. > > Unfortunately the fb driver cannot register because it cannot request a > dma channel (there are no dma registered in dmaengive, the list is > empty). This is because the ipu-core platform_driver is never > registered. This is supposed to be done thanks to the > subsys_initcall(ipu_init) as we can see it in the patch (which is then > going to be linked with the ipu-core device that is registered witth the > other mx3 device). I never happen to see one of the ipu_probe messages > (even for failure) with dynamic_printk enabled. You need the patch 4/4 - platform bindings, which is not in that queue and will only be merged in the next kernel version. You can so far pick it up here: http://marc.info/?l=linux-arm-kernel&m=123143901514438&w=2 Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword