linux-kernel - Re: [PATCH 2/5] power: reset: Add Allwinner A31 reset code

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Date:	Mon, 28 Apr 2014 16:11:08 -0700
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Arnd Bergmann <arnd@...db.de>, wim@...ana.be, dbaryshkov@...il.com,
	dwmw2@...radead.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
	linux-sunxi@...glegroups.com
Subject: Re: [PATCH 2/5] power: reset: Add Allwinner A31 reset code

Hi,

On Sat, Apr 26, 2014 at 08:32:27AM -0700, Guenter Roeck wrote:
> On 04/23/2014 08:04 AM, Maxime Ripard wrote:
> >That code used to be in the machine code, but it's more fit here with other
> >restart hooks.
> >
> >That will allow to cleanup the machine directory, while waiting for a proper
> >watchdog driver for the A31.
> >
> >Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> 
> I am a bit lost here. Why is this a separate driver, accessing watchdog registers,
> while the other reset functions are being moved into the watchdog code ?
> 
> Any chance to handle all platforms the same ? Seems to me that would be less messy.

The A31 watchdog is actually a different watchdog from the one in the
other Allwinner SoCs, that probably needs a driver of its own, or at
least, a significant refactoring.

No one did this yet, but eventually this will probably happen.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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