From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicholas Beck Subject: Re: OMAP2 DSS Linux Driver Date: Wed, 28 Jul 2010 11:57:54 +0100 Message-ID: <4C500D32.8060408@mpcdata.com> References: <4C4FF08D.4040503@mpcdata.com> <1280313123.2427.109.camel@tubuntu.research.nokia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:43689 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754819Ab0G1K56 (ORCPT ); Wed, 28 Jul 2010 06:57:58 -0400 Received: by wyf19 with SMTP id 19so3980354wyf.19 for ; Wed, 28 Jul 2010 03:57:57 -0700 (PDT) In-Reply-To: <1280313123.2427.109.camel@tubuntu.research.nokia.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Tomi Valkeinen Cc: linux-omap@vger.kernel.org On 28/07/10 11:32, Tomi Valkeinen wrote: > On Wed, 2010-07-28 at 10:55 +0200, ext Nicholas Beck wrote: > >> Hi Tomi, >> >> Firstly, I apologise if you would prefer this on a maillist rather than >> a direct mail. Please let me know if you would prefer this on a maillist >> I will post it there instead. >> > cc'ing linux-omap mailing list is always good (cc'd). More people can > answer, and more people will see the answer. > Thanks and understood. I will make sure that future posts hit the mail list. > >> I am working with the omap2 DSS driver implementation that you created. >> The DSS linux docs say that MIPI DBI (RFBI) output is working and tested. >> >> Please could you let me know what platform you tried this on? >> > That information is a bit outdated. RFBI was working and tested, and the > platform was Nokia N800. However, the panel driver for N800 was just a > quickly ported hack, and currently there are no public boards that use > DSS2 and RFBI. > > There has been quite big changes in the DSS2 code, and RFBI is most > likely broken. There has also been some discussions about RFBI in > linux-omap mailinglist, but I haven't looked at the RFBI code myself as > I don't have any board to test it on. > > >> I am working with some custom hardware, which is largely similar to the >> OMAP3530EVM, but will use MIPI DBI (RFBI) through a custom FPGA instead >> of MIPI DPI (RFBI bypass) as used by the EVM's LCD. We are trying to >> reduce the integration risk by basing this work on a known working platform. >> > Most likely the problems with RFBI are quite small, as the driver did > work earlier. However, finding those small problems may be a big job =). > I suggest you search l-o mailing list archives, and try to work with the > guys there who are trying to use RFBI. > > Thanks for the info. I'll dig through the archive and see what the current state is. Nick