linux-kernel - Re: [PATCH] of: unittest: Statically apply overlays using fdtoverlay

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Message-ID: <20210120050606.b2m4jssh73wexybx@vireshk-i7>
Date:   Wed, 20 Jan 2021 10:36:06 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Frank Rowand <frowand.list@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>, pantelis.antoniou@...sulko.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kbuild@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Bill Mills <bill.mills@...aro.org>, anmar.oueja@...aro.org,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: Re: [PATCH] of: unittest: Statically apply overlays using fdtoverlay

On 19-01-21, 09:44, Frank Rowand wrote:
> No.  overlay_base.dts is intentionally compiled into a base FDT, not
> an overlay.  Unittest intentionally unflattens this FDT in early boot,
> in association with unflattening the system FDT.  One key intent
> behind this is to use the same memory allocation method that is
> used for the system FDT.
> 
> Do not try to convert overlay_base.dts into an overlay.

Okay, but why does it have /plugin/; specified in it then ?

And shouldn't we create two separate dtb-s now, static_test.dtb and
static_overlay_test.dtb ? As fdtoverlay will not be able to merge it with
testcase.dtb anyway.

Or maybe we can create another file static_overlay.dts (like testcases.dts)
which can include both testcases.dts and overlay_base.dts, and then we can
create static_test.dtb out of it ? That won't impact the runtime tests at all.

-- 
viresh