linux-kernel - Re: [PATCH V2 1/6] Documentation: add dts binding for X-Gene reboot dts node.

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Message-ID: <CAL85gmD+34VKSHsGXWTbQ2w3razo_cKukfe=dSQJi+x-Zfvtpw@mail.gmail.com>
Date:	Tue, 14 Jan 2014 10:35:33 -0800
From:	Feng Kan <fkan@....com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Mark Rutland <mark.rutland@....com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH V2 1/6] Documentation: add dts binding for X-Gene reboot
 dts node.

On Mon, Jan 13, 2014 at 10:06 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Tuesday 14 January 2014, Feng Kan wrote:
>>
>> >
>> > Is this related to the standard ARM SCU that manages multiprocessor
>> > systems, or a different unit that uses the same name?
>>
>> FKAN: You mean the snoop control unit in ARM. This is different from
>> that, the main function of this unit is clk control.
>
> Hmm, if it's *mainly* used for clocks, you may actually just want to
> have a driver in drivers/clk for it that also performs a few of the
> other things on the side.
>

FKAN: there among other thing, reset controls, fuse id's and deep sleep
resume registers... I like your idea of using syscon, we can have a node
for SCU and then the specific driver to parse out the needed chunk to use.

>         Arnd
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