From: David Gibson <david@gibson.dropbear.id.au>
To: Frank Rowand <frowand.list@gmail.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
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: Fri, 22 Jan 2021 10:41:38 +1100 [thread overview]
Message-ID: <20210121234138.GB4400@yekko.fritz.box> (raw)
In-Reply-To: <3431c306-a62c-76c6-f236-fef35fa7ebc7@gmail.com>
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On Thu, Jan 21, 2021 at 01:04:46AM -0600, Frank Rowand wrote:
> On 1/20/21 11:58 PM, Viresh Kumar wrote:
> > On 20-01-21, 23:55, Frank Rowand wrote:
> >> yes, but using the modified versions ("/plugin/;" removed) of
> >> testcases.dtb and overlay_base.dtb.
> >
> > Okay, that would work fine I guess. I will try to implement this in
> > the new version.
> >
> >> I apologize in advance if I get confused in these threads or cause confusion.
> >> I find myself going in circles and losing track of how things fit together as
> >> I move through the various pieces of unittest.
> >
> > Me too :)
> >
> > Today is the first time where we have some overlap in our work hours
> > (probably you working late :)), and we are able to get this sorted out
> > quickly enough.
>
> Working quite late. I swear I stopped working 3 hours ago and that was
> already late.
>
> I reacted quite negatively to the attempt to restructure the unittest
> .dts file in the original patch. Now after walking around the problem
> space a bit, and reviewing the ugly things that unittest.c does, and
> coming up with the approach of sed to copy and modify the two base
> .dts files, I think I finally have my head wrapped around an easier
> and cleaner approach than sed.
>
> I'll describe it for just one of the two base files, but the same
> concept would apply to the other. Don't take my file names as
> good suggestions, I am avoiding using the brain power to come up
> with good names at the moment.
>
> 1) rename overlay_base.dts to overlay_base.dtsi
>
> 2) remove "/dtgs-v1/" and "/plugin/:" from overlay_base.dtsi
>
> 3) create a new overlay_base.dts:
> // SPDX-License-Identifier: GPL-2.0
> /dts-v1/;
> /plugin/;
> #include overlay_base_dtsi
"overlay_base" is a terrible name - it's not clear if it's supposed to
be a base tree or an overlay. I'm still not seeing any reasonable
use for the plugin version either, fwiw.
>
> 4) create a new file overlay_base_static.dts:
> // SPDX-License-Identifier: GPL-2.0
> /dts-v1/;
> #include overlay_base_dtsi
>
> 5) then use overlay_base_static.dtb as the base blob for ftdoverlay
> applying overlay.dtb
>
> Untested, hand typed, hopefully no typos.
>
> -Frank
>
> >
> > Thanks for your feedback Frank.
> >
>
--
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 23:51 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
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 [this message]
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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