linux-kernel - Re: CHIPPro NAND issue with 4.12 rc1

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Message-ID: <20170523195239.6nsv4ydrt4u7q6ge@flea.home>
Date:   Tue, 23 May 2017 21:52:39 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Angus Ainslie <angus@...ea.ca>
Cc:     Boris Brezillon <boris.brezillon@...e-electrons.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Richard Weinberger <richard@....at>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        Chen-Yu Tsai <wens@...e.org>, linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: CHIPPro NAND issue with 4.12 rc1

On Mon, May 22, 2017 at 10:32:42AM -0600, Angus Ainslie wrote:
> Hi Maxime
> 
> On 2017-05-22 01:01, Maxime Ripard wrote:
> > 
> > This just made me realise, this is also the time where the clocks are
> > disabled, and we changed our clock implementation in 4.11.
> > 
> > And using the 4.4 DT will keep the old driver...
> > 
> > Did you test in 4.11? If it's also broken, could you try to revert
> > 1f4ce3b6ca79 and 6b48644b1d29 (I'm not sure it's going to be a trivial
> > revert, but in that order it should work).
> > 
> 
> Thanks reverting those two allow the kernel to boot and mount the NAND.

Ok, good.

If you unrevert those patches, and add clk_ignore_unused to the kernel
command line, is it still broken?

Maxime

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

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