linux-kernel - Re: [PATCH v3 1/2] of: Rename "poweroff-source" property to "system-power-controller"

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Message-ID: <CACxGe6tiv8io4Bv+O6uSsGGwZ87R-_j965qhbQdBexOHakk4Pg@mail.gmail.com>
Date:	Wed, 12 Nov 2014 11:46:06 +0000
From:	Grant Likely <grant.likely@...aro.org>
To:	Romain Perier <romain.perier@...il.com>
Cc:	Heiko Stübner <heiko@...ech.de>,
	Rob Herring <robh+dt@...nel.org>,
	devicetree <devicetree@...r.kernel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Johan Hovold <johan@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, Felipe Balbi <balbi@...com>
Subject: Re: [PATCH v3 1/2] of: Rename "poweroff-source" property to "system-power-controller"

On Tue, Nov 11, 2014 at 7:01 PM, Romain Perier <romain.perier@...il.com> wrote:
> 2014-11-11 16:01 GMT+01:00 Grant Likely <grant.likely@...aro.org>:
>> So, to be a little pendantic, the 'ti,' prefix is basically just for
>> backwards compatibility with the old binding, and that old binding is
>> only used on palmas.c, tps65*.c and twl4030-power.c, correct?
>
> No, the backward compatibility here is only useful for drivers which
> used "ti,system-power-controller" in the past and recently switched to
> the new property through the standard helper function. As most of the
> dts were not updated to use the new property, previous patches broke
> compatibility with "ti,system-power-controller" (this compat would be
> reverted with this serie). Only one driver has this problem, it is
> tps65910.
>
> So, What you propose is that I should handle the old property directly
> from tps65910, and keep the standard helper generic right ?

yes as it is a quirk for only that driver.

g.
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