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Date: Mon, 26 May 2014 16:47:57 -0700
From: Guenter Roeck <linux@roeck-us.net>
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To: Geert Uytterhoeven <geert@linux-m68k.org>,
        Grant Likely <grant.likely@secretlab.ca>
CC: Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
        Rob Herring <robherring2@gmail.com>,
        Stephen Warren <swarren@wwwdotorg.org>,
        Matt Porter <matt.porter@linaro.org>,
        Koen Kooi <koen@dominion.thruhere.net>,
        Alison Chaiken <Alison_Chaiken@mentor.com>,
        Dinh Nguyen <dinh.linux@gmail.com>, Jan Lubbe <jluebbe@lasnet.de>,
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        Michael Stickel <ms@mycable.de>, Dirk Behme <dirk.behme@gmail.com>,
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        Sascha Hauer <s.hauer@pengutronix.de>,
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        Dan Malek <dan.malek@konsulko.com>,
        Georgi Vlaev <georgi.vlaev@konsulko.com>
Subject: Re: [PATCH v4 2/8] OF: Introduce DT overlay support.
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On 05/26/2014 02:44 PM, Geert Uytterhoeven wrote:
> Hi Grant,
>
> On Mon, May 26, 2014 at 11:33 PM, Grant Likely
> <grant.likely@secretlab.ca> wrote:
>> After thinking about it more, I think it is very likely that removing
>> all the overlays is the correct thing to do in the kexec use-case. When
>> kexec-ing, it makes sense that we'd want the exact same behaviour from
>> the kexec'ed kernel. That means we want the device drivers to do the
>> same thing including loading whatever overlays they depend on.
>
> Are the device drivers loading the overlays?
> That sounds a bit backwards to me.
>

Depends on what you mean with 'device driver'. In our case we have a driver
dedicated to handle card status. Quite similar to what the connector subsystem
does but with significantly more functionality (including devicetree overlay
management).

Guenter