Re: [PATCH v5 00/11] Add DRM for stih4xx platforms

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Rob, Russel,

What I can do is to rebase my driver on driver-core-next branch from
Greg tree (git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git).

Does that could help ?

Regards,
Benjamin


2014-07-03 23:59 GMT+02:00 Rob Clark <robdclark@xxxxxxxxx>:
> On Thu, Jul 3, 2014 at 5:52 PM, Russell King - ARM Linux
> <linux@xxxxxxxxxxxxxxxx> wrote:
>> On Thu, Jul 03, 2014 at 05:31:21PM -0400, Rob Clark wrote:
>>> >From a brief look, it looks like my comments have been addressed, so I
>>> think this is starting to shape up..
>>>
>>> Laurent/Thierry/Russell, I don't suppose any of you are likely to have
>>> time before 3.17 merge window to give sti one last once-over to see
>>> what I missed ;-)
>>
>> As this appears to be using the component helpers, it would be good for
>> the author to be pre-warned about the change to the API.  I'm going to
>> be doing this as a two step thing.
>>
>> The first stage of it has just been taken by Greg this evening.  This
>> retires old behaviour that was needed for the initial versions of imx-drm,
>> and fixes a bug.  More importantly, it introduces a new interface where
>> you build the list of expected components before calling
>> component_master_add(), passing it into that function.
>>
>> It is slightly less flexible from the driver writer's view point, but
>> allows us to do more in the component helper, and support some features
>> that others would like to see (such as being able to add additional
>> optional components after the initial bind (that's not much interest
>> to DRM though.)
>>
>> This should make the v3.17 merge window.  I'm hoping that by forewarning
>> about the change, that people can be aware of it and have patches
>> prepared for v3.18 (or maybe even v3.17) to convert over to it, so we
>> can get rid of the older interface before we get too many users of it.
>>
>> I've just peeked at the binding document in the first patch.  I notice
>> that it isn't making use of the of_graph stuff, which is a bit of a
>> shame because I've sent a RFC patch adding drivers/gpu/drm/drm_of.c
>> to provide a helper which encoders can use to get the CRTC mask from
>> an of_graph representation.
>
> which reminds me, I need to have a look at the drm_of stuff..
>
>> I'm using this not only for imx-drm, but also for tda998x - and that's
>> where the problems are likely to start if we end up with different
>> DRM implementations doing different solutions to the connectivity
>> problem.
>
> If it simplifies merge-order stuff, I'd be ok with a follow-up patch
> that converts over (assuming it shouldn't have an impact on the DT
> bindings, which I'm only assuming it should not..)
>
> Probably it would be a good idea if Benjamin at least had a patch
> ready to go to convert over which could be merged right after your
> stuff hits drm-next.
>
> BR,
> -R
>
>> --
>> FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
>> improving, and getting towards what was expected from it.



-- 
Benjamin Gaignard

Graphic Working Group

Linaro.org │ Open source software for ARM SoCs

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