Re: OMAP2 DSS Linux Driver

[Nicholas Beck <nbeck@mpcdata.com>]

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 That information is a bit outdated.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