Re: [PATCH 0/4] Input: atmel_mxt_ts - make it work on Tegra

[Stephen Warren <swarren@wwwdotorg.org>]

On 05/08/2014 01:50 PM, Nick Dyer wrote:
> Stephen Warren wrote:
>> Anyway, I'd like to pull these patches into my local repo to build on.
>> Can you point me at a tree where Dmitry applied them even if not in
>> linux-next? Alternatively, does your github repo contain exactly the
>> patches from the recent mailing list posting you linked above?
> 
> https://git.kernel.org/cgit/linux/kernel/git/dtor/input.git/log/?h=atmel-mxt-ts
> 
> However, I have made minor updates on top of that to take account of API
> changes since he worked on them (reinit_completion).
> 
> The patches I posted at the end of March are the first 22 out of this tag:
> 
> https://github.com/ndyer/linux/tree/for-next-20140316-v8

I took those 22 patches, applied them on top of next-20150507 (which is
just what I happened to be developing on top of right now), and rebased
my patches which add DT support. You can find the result here if you want:

git://github.com/swarren/linux-tegra.git tegra_dev

However, with that code-base, the touchpad doesn't work for me. I see a
long pause and errors during boot:

> [    1.246253] atmel_mxt_ts 1-004b: Direct firmware load failed with error -2
> [    1.253120] atmel_mxt_ts 1-004b: Falling back to user helper
> [   61.394348] atmel_mxt_ts 1-004b: Failure to request config file maxtouch.cfg
> [   61.403717] atmel_mxt_ts 1-004b: Family: 130 Variant: 1 Firmware V1.0.AA Objects: 22

... and the touchpad doesn't work once X starts. With next-20140507 plus
the patches I sent to the mailing list, everything works.

I'm not sure if I'm supposed to have some configuration file now and
that's why it doesn't work, or whether some other problem has been
introduced? If I do need a config file, can you tell me what to put into it?

Thanks for any pointers.