linux-kernel - Re: [RFC 0/2] kbuild: Add support to build overlays (%.dtbo)

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Message-ID: <20210111111711.r2xesydzhq5js2nf@vireshk-i7>
Date:   Mon, 11 Jan 2021 16:47:11 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Olof Johansson <olof@...om.net>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Frank Rowand <frowand.list@...il.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        DTML <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Bill Mills <bill.mills@...aro.org>, tero.kristo@...il.com
Subject: Re: [RFC 0/2] kbuild: Add support to build overlays (%.dtbo)

On 07-01-21, 14:28, Masahiro Yamada wrote:
> Viresh's patch is not enough.
> 
> We will need to change .gitignore
> and scripts/Makefile.dtbinst as well.
> 
> In my understanding, the build rule is completely the same
> between .dtb and .dtbo
> As Rob mentioned, I am not sure if we really need/want
> a separate extension.
> 
> A counter approach is to use an extension like '.ovl.dtb'
> It clarifies it is an overlay fragment without changing
> anything in our build system or the upstream DTC project.

By the time you gave feedback, I have already sent the dtbo change for
DTC to the device-tree-compiler list (based on Rob's suggestion).

And it got merged today by David:

https://github.com/dgibson/dtc/commit/163f0469bf2ed8b2fe5aa15bc796b93c70243ddc

Can we please finalize what we need to do with naming here and be done
with it, so I can rework my patches and get going ?

Thanks.

-- 
viresh