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Date: Wed, 5 Aug 2015 11:09:26 +0200
From: Samuel Ortiz <sameo@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>
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Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>,
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Subject: Re: [Ksummit-discuss] [CORE TOPIC] Mainline kernel on a cellphone
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On Wed, Aug 05, 2015 at 10:40:11AM +0200, Linus Walleij wrote:
> On Tue, Aug 4, 2015 at 12:36 AM, Marcel Holtmann <marcel@holtmann.org> wrote:
> > Hi Rob,
> 
> >> There's been some work by Neil Brown to create a UART slave
> >> bus[1] (...)
> 
> > The work on UART slaves (or whatever it will be called eventually) is important
> > for Bluetooth and most likely GPS and NFC in the future. It then allows to define
> > all the nasty behind the curtain details of that UART via DT or ACPI in vendor drivers.
> 
> I agree 100%, and I think I have a simple enough in-kernel usecase so I can
> get testing these series.
> 
> It seems GPS and NFC and other code is being kept out of the kernel
> because of the absense of a UART slave bus and all the hazzle of handling
> this.
Keeping it in userspace means vendors can provide their stacks under
the apache license, not the kernel GPL one.

Cheers,
Samuel.