linux-kernel - Re: [RFC] reset: make reset controller driver initialize early

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Date:   Tue, 11 Sep 2018 10:31:00 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Dinh Nguyen <dinguyen@...nel.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Marek Vasut <marex@...x.de>
Subject: Re: [RFC] reset: make reset controller driver initialize early

Hi Dinh,

On Mon, 2018-09-10 at 14:59 -0500, Dinh Nguyen wrote:
> Hi Philipp,
> 
> I need to make the reset controller on the SoCFPGA platform initialize
> early.

What does early mean in this context?

> I have one solution which is similar to what reset-sunxi is
> doing, making the "altr,rst-mgr" initialize early in a separate
> reset-socfpga.c but using the reset-simple operations.

That's what I would have gone for as well.

> I'm guessing SoCFPGA may not be the only platform that needs the reset
> driver early, would it make sense to have a solution in reset-simple
> that is capable of an early init?

I suppose you could share sunxi_reset_init if you pass it a struct
reset_simple_devdata as an argument.

regards
Philipp