linux-kernel - Re: [PATCH 07/14] mfd: Initialise the AB8500 driver at core

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Message-ID: <CACRpkdY8aD1djSdPoeKYDdFVbf3E84ZWw2Q5CCLsPmoD66Hf7A@mail.gmail.com>
Date:	Mon, 11 Jun 2012 23:03:48 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Lee Jones <lee.jones@...aro.org>, grant.likely@...retlab.ca
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linus.walleij@...ricsson.com, arnd@...db.de,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Mattias WALLIN <mattias.wallin@...ricsson.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH 07/14] mfd: Initialise the AB8500 driver at core_initcall time

On Mon, Jun 11, 2012 at 5:25 PM, Lee Jones <lee.jones@...aro.org> wrote:

> The AB8500 is soon to have its own IRQ domain. For this to be useful
> the driver needs to be initialised earlier in the boot sequence. Here
> we move initialisation forward from arch_initcall to core_initcall time.

I don't understand why using IRQ domain makes it necessary to
initialize the driver earlier in the init process. Please explain to me,
I need tutoring here.

Thanks,
Linus Walleij
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