linux-kernel - Re: [PATCH 2/2] ARM: dts: rockchip: Add dtb for the Radxa Rock 2 Square board

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Date:	Mon, 14 Sep 2015 10:47:19 +0200
From:	Heiko Stübner <heiko@...ech.de>
To:	Sjoerd Simons <sjoerd.simons@...labora.co.uk>
Cc:	Javier Martinez Canillas <javier@...hile0.org>,
	Mark Rutland <mark.rutland@....com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-rockchip@...ts.infradead.org,
	Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/2] ARM: dts: rockchip: Add dtb for the Radxa Rock 2 Square board

Am Montag, 14. September 2015, 10:05:58 schrieb Sjoerd Simons:
> Hey Javier,
> 
> On Mon, 2015-09-14 at 09:50 +0200, Javier Martinez Canillas wrote:
> > Hello Sjoerd,
> > 
> > On Mon, Sep 14, 2015 at 9:30 AM, Sjoerd Simons
> > 
> > <sjoerd.simons@...labora.co.uk> wrote:
> > > For the first patch i do prefer to keep them on so we can have get
> > > some
> > > more testing  with this board before fine-tuning those things
> > > (fwiw,
> > 
> > Ok.
> > 
> > > the rockchip evb board and others with essentially the same pmic
> > > setup
> > > all also have them always-on)
> > 
> > Yes but I believe that's because it was easier and there are
> > regulators on these boards that don't need to be always-on as well.
> 
> Yes what i was trying to say is that it's not an uncommon to keep these
> on for convenience while fine-tuning the device-tree setups ;)

Also, a lot of drivers do not yet do proper regulator handling (our drm/kms 
driver as a prime example), so the number of regulators able to being actually 
turned off is quite slim.

So I guess I'm ok, with handling these once driver components can actually do 
something with their supplies :-) .


Heiko
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