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Date: Tue, 25 Aug 2015 11:59:45 -0700
From: Tim Bird <tim.bird@sonymobile.com>
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Subject: Re: [Ksummit-discuss] [CORE TOPIC] Mainline kernel on a cellphone
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On 07/29/2015 12:40 AM, Pavel Machek wrote:
> Hi!
> 
>>> There is now a wiki page at:
>>> See http://elinux.org/Kernel_areas_of_focus_for_mainlining
>>> In particular it has a table showing certain areas that tend to have
>>> a lot of out-of-tree code (e.g. most phones have between 80K to
>>> 100K of lines of wireless driver support out-of-mainline)
>>
>> Did anyone see successful attempts of mainlining such vendor code? I
>> mean mainlining by individuals, not by vendor company itself.
> 
> That is what is happening on Nokia N900. It took some time, but we
> have almost usable phone at this point. We'll have usable one once
> power management is working and once we get some more reasonable code
> to control ofono.

Just an update on this thread.  We held a BOF at LinuxCon last week
on this topic.  I gave a presentation with some background, and
then we had a discussion.  Notes from the meeting (and a link to the
presentation) are at: 
http://elinux.org/LCNA_2015_Device_Mainlining_BOF_meeting_notes

We'll be doing more BOFs on this topic at Linaro Connect and ELC Europe.

I believe this would make a good discussion area for the kernel
summit.  The summit will likely include developers who have a
good idea of detailed technical problem areas that need attention in
order to make progress on this problem.

Thanks.
 -- Tim