linux-kernel - Re: [PATCH V1 Resend 2/3] cpufreq: dt: Add generic platform-device creation support

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Date:	Wed, 30 Mar 2016 09:53:34 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linaro-kernel@...ts.linaro.org
Cc:	Viresh Kumar <viresh.kumar@...aro.org>, k.kozlowski@...sung.com,
	kgene.kim@...sung.com, heiko@...ech.de, linux-pm@...r.kernel.org,
	mmcclint@...eaurora.org, xf@...k-chips.com,
	Rafael Wysocki <rjw@...ysocki.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V1 Resend 2/3] cpufreq: dt: Add generic platform-device creation support

On Wednesday 30 March 2016 08:52:40 Viresh Kumar wrote:
> On 29-03-16, 21:45, Arnd Bergmann wrote:
> > Regarding new platforms, I'd hope that we could manage to define an extension
> > to the oppv2 binding that marks a machine as compatible with opp, so we can
> 
> The extension of oppv2 binding or compatible string is for platforms that really
> need extend oppv2 (like ST, which already have a new compatible string). I am
> not sure if we should be putting that into the Machine's compatible area, as I
> though it is something internal to OPP layer or their driver.
> 
> But we can see that when we handle it.
> 

I think it should be something in the /cpus or the /opp_table hierarchy,
not the root of the device tree, but other than that I don't care much
whether it's a variation of the oppv2 compatible string or an additional
property in any of the nodes.

	Arnd