Message-ID: <20150302202540.GB30263@beef>
Date:	Mon, 2 Mar 2015 15:25:40 -0500
From:	Matt Porter <mporter@...sulko.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Devicetree List <devicetree@...r.kernel.org>,
	Shawn Guo <shawn.guo@...aro.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Rabeeh Khoury <rabeeh@...id-run.com>
Subject: Re: [PATCH] ARM: dts: hummingboard: enable pcf8523 rtc for i2eX

On Mon, Mar 02, 2015 at 07:49:08PM +0000, Russell King wrote:
> On Mon, Mar 02, 2015 at 02:21:16PM -0500, Matt Porter wrote:
> > [added Rabeeh]
> > 
> > On Mon, Mar 02, 2015 at 07:06:16PM +0000, Russell King wrote:
> > > On Mon, Mar 02, 2015 at 07:02:04PM +0000, Russell King - ARM Linux wrote:
> > > > On Mon, Mar 02, 2015 at 01:50:06PM -0500, Matt Porter wrote:
> > > > > The PCF8523 RTC is populated on the i2eX boards so
> > > > > enable the i2c1 controller and enable the device on
> > > > > that bus.
> > > > 
> > > > Hmm, I wonder where my update patches went... oh, they're still sitting
> > > > in my excessive backlog of patches in my tree as part of my "sgtl5000
> > > > hacks" patch...
> > > 
> > > Also note that before we accept patches to the SolidRun stuff, we should
> > > first re-license the file as GPLv2/X11.
> > 
> > Hi Russell,
> > 
> > Given that there's no license information at all on any of these three
> > dts files I think that's a good idea. I just realized I didn't copy
> > Rabeeh on this and he's apparently the original submitter based on
> > your work. Ideally Rabeeh should send a license update but I could do
> > so if you'd like and gather some acks.
> 
> It's more up to me, as I ended up being the initial author of the
> mainline files - and if you look at:
> 
> http://www.home.arm.linux.org.uk/~rmk/cubox/hummingboard-cubox-i-v3.16-rc2-20140624/0041-sgtl5000-hacks.patch
> 
> you'll see the patch I refer to above, which is my own work, and it's
> hardly changed to the 3.18 patch:
> 
> http://www.home.arm.linux.org.uk/~rmk/cubox/hummingboard-cubox-i-v3.18-20141216/0113-sgtl5000-hacks.patch

Ok

> > OTOH, did you already have a license update somewhere in your backlog
> > of patches?
> 
> Well, I do now. :)

Ok :)

> I had dropped the ball on a load of kernel stuff as it seemed to be going
> nowhere, no one seemed interested in it, and my massive backlog of patches
> (especially things like the ethernet driver) just became far too difficult
> both to merge into mainline and to keep forward-porting.
 
Understood, I recall that thread but didn't have the hardware back then.
;)

> In any case, anyone who is serious about using the SolidRun hardware runs
> Jon Nettleton's fully featured kernel (which is the basis for SR's kernel)
> - sadly something which mainline likely is never going to be.

Right, I also make use of that kernel, of course. It's just too old
to make me completely happy.

> It's a bit like the MMC stuff, I'm still carrying Olof's solution for
> the SDIO wifi/bt power and reset control stuff, and I'm not at present
> intending to do anything with it other than continue forward-porting it.
> I'm not interested in wasting free time trying to re-work that to suit
> some other solution, especially as people couldn't settle on a solution
> when I /did/ have an interest in it (not that I have much interest in
> wifi or BT - I tend to prefer old fashioned wired connections.  It also
> doesn't help that the Broadcom driver seemed to be very flakey with
> brcm4329 hardware for quite some time.)
> 
> Anyway, you can find all my kernel patches in a suitably trimmed version
> of the above URL, and on http://ftp.arm.linux.org.uk/cgit/ is a huge pile
> of effort I put into an accelerated X server with etnaviv and /my/ kernel
> version of etnaviv drm, complete with Xv support.

Excellent, so I feel like you ultimately giving me mixed messages here.
You said you need to take care of this licensing issue and I think you
implied you'd take care of the audio and rtc stuff as you have that
patch in your backlog. However, sounds like you've given up on pushing
the bigger things upstream given the problem with getting agreement
on those pieces. Are you just going to be submitting the
less controversial portions like the audio and dts updates? My goal for
HB initially is just to have all the low-hanging fruit (like rtc and audio)
working on mainline...besides the stuff that's already there.

Hrm, I also don't care about WiFi/BT on this board, I also prefer wired,
but on a custom board I'll have to support a different WiFi/BT vendor so
I'll take a look at that reset solution you are carrying.

Thanks,
Matt
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