From: David Gibson <david@gibson.dropbear.id.au>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Frank Rowand <frowand.list@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Masahiro Yamada <masahiroy@kernel.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Bill Mills <bill.mills@linaro.org>,
anmar.oueja@linaro.org
Subject: Re: [PATCH V5 5/5] of: unittest: Statically apply overlays using fdtoverlay
Date: Thu, 21 Jan 2021 17:36:04 +1100 [thread overview]
Message-ID: <20210121063604.GK5174@yekko.fritz.box> (raw)
In-Reply-To: <20210121055040.eluxzb2uknuygkxz@vireshk-i7>
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On Thu, Jan 21, 2021 at 11:20:40AM +0530, Viresh Kumar wrote:
> On 20-01-21, 23:45, Frank Rowand wrote:
> > I have only the most surface knowledge of fdtoverlay, mostly from
> > "fdtoverlay --help", but you can apply multiple overlays with a
> > single invocation of fdtoverlay. My _assumption_ was that the
> > overlays would be applied in order, and after any given overlay
> > was applied, subsequent overlays could reference the previously
> > applied overlay.
> >
> > Is my assumption incorrect?
>
> I think yes, if everything is in order then it should work just fine.
>
> I was only suggesting that fdtoverlay accepting the base overlay with
> /plugin/; may well be a requirement and so intentionally done.
No. It's simply the result of the fact that a dtbo is still a dtb.
So, you can still apply an overlay to it. However, a dtbo is a
weirdly structured dtb, so applying an overlay to it is very unlikely
to give you something useful.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2021-01-21 6:45 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-20 7:06 [PATCH V5 0/5] dt: build overlays Viresh Kumar
2021-01-20 7:06 ` [PATCH V5 1/5] scripts: dtc: Fetch fdtoverlay.c from external DTC project Viresh Kumar
2021-01-20 7:06 ` [PATCH V5 2/5] scripts: dtc: Build fdtoverlay tool Viresh Kumar
2021-01-20 7:06 ` [PATCH V5 3/5] scripts: dtc: Remove the unused fdtdump.c file Viresh Kumar
2021-01-21 0:44 ` David Gibson
2021-01-21 4:17 ` Viresh Kumar
2021-01-21 6:26 ` David Gibson
2021-01-21 14:18 ` Rob Herring
2021-01-20 7:06 ` [PATCH V5 4/5] kbuild: Add support to build overlays (%.dtbo) Viresh Kumar
2021-01-20 8:58 ` Masahiro Yamada
2021-01-20 9:55 ` Viresh Kumar
2021-01-20 11:04 ` Masahiro Yamada
2021-01-20 11:27 ` Viresh Kumar
2021-01-21 0:49 ` David Gibson
2021-01-21 4:13 ` Viresh Kumar
2021-01-21 5:40 ` Frank Rowand
2021-01-21 6:25 ` David Gibson
2021-01-20 7:06 ` [PATCH V5 5/5] of: unittest: Statically apply overlays using fdtoverlay Viresh Kumar
2021-01-21 0:51 ` David Gibson
2021-01-21 5:14 ` Frank Rowand
2021-01-21 5:34 ` Viresh Kumar
2021-01-21 5:45 ` Frank Rowand
2021-01-21 5:50 ` Viresh Kumar
2021-01-21 6:36 ` David Gibson [this message]
2021-01-21 6:34 ` David Gibson
2021-01-21 6:57 ` Viresh Kumar
2021-01-21 23:39 ` David Gibson
2021-01-22 3:10 ` Viresh Kumar
2021-01-22 4:27 ` David Gibson
2021-01-21 5:34 ` Frank Rowand
2021-01-21 5:43 ` Viresh Kumar
2021-01-21 5:55 ` Frank Rowand
2021-01-21 5:58 ` Viresh Kumar
2021-01-21 7:04 ` Frank Rowand
2021-01-21 23:41 ` David Gibson
2021-01-21 6:37 ` David Gibson
2021-01-20 15:43 ` [PATCH V5 0/5] dt: build overlays Rob Herring
2021-01-21 4:14 ` Viresh Kumar
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