linux-kernel - Re: [RFC PATCH v2 1/4] regulator: Add helper function to get "poweroff-source" property

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Message-ID: <2477657.j9qmEgD9t9@phil>
Date:	Fri, 10 Oct 2014 14:33:23 +0200
From:	Heiko Stübner <heiko@...ech.de>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	PERIER Romain <romain.perier@...il.com>,
	devicetree <devicetree@...r.kernel.org>,
	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>, robh <robh@...nel.org>,
	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Anton Vorontsov <anton@...msg.org>,
	Laxman Dewangan <ldewangan@...dia.com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [RFC PATCH v2 1/4] regulator: Add helper function to get "poweroff-source" property

Hi Grant,

Am Freitag, 10. Oktober 2014, 12:47:08 schrieb Grant Likely:
> What I'm more concerned about is the semantics of the property. What
> do the generic code paths gain by standardizing this property? Is it
> expected that
[seems to be missing some text in the original mail]

We currently see an influx of system-power-controller variants. While in the 
past it only was
	ti,system-power-controller

there is now already
	maxim,system-power-controller
	rockchip,system-power-controller

Romain's work would introduce "active-semi,system-power-controller", I have a 
"netronix,system-power-controller" sitting in some distant tree and there may 
be more already waiting somewhere.

So in the worst case I'd think you could expect such a property for every 
pmic-vendor in vendor-prefixes.txt ... as it seems to be a quite common use-
case these days to have the pmic handle system power on its own.


Heiko
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