linux-kernel - Re: [PATCH 2/8] arm64: dts: rockchip: Refactor DSI nodes on rk3399 boards

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Message-Id: <DAZW78SRQQ0Y.2R1T9V72Q7AZH@cknow.org>
Date: Mon, 30 Jun 2025 15:12:56 +0200
From: "Diederik de Haas" <didi.debian@...ow.org>
To: "Krzysztof Kozlowski" <krzk@...nel.org>, "kernel test robot"
 <lkp@...el.com>, "Rob Herring" <robh@...nel.org>, "Conor Dooley"
 <conor+dt@...nel.org>, "Heiko Stuebner" <heiko@...ech.de>
Cc: <llvm@...ts.linux.dev>, <oe-kbuild-all@...ts.linux.dev>, "Dragan Simic"
 <dsimic@...jaro.org>, "Quentin Schulz" <quentin.schulz@...rry.de>, "Johan
 Jonker" <jbx6244@...il.com>, <devicetree@...r.kernel.org>,
 <linux-arm-kernel@...ts.infradead.org>,
 <linux-rockchip@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/8] arm64: dts: rockchip: Refactor DSI nodes on rk3399
 boards

On Mon Jun 30, 2025 at 7:57 AM CEST, Krzysztof Kozlowski wrote:
> On 29/06/2025 12:09, Diederik de Haas wrote:
>> 
>> Luckily I've now found why my build script didn't catch it.
>> ```sh
>> export PATH=~/dev/kernel.org/dt-schema-venv/bin/:$PATH CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64
>> make distclean
>> make debarm64_defconfig
>> make CHECK_DTBS=y W=1 rockchip/px30-cobra-ltk050h3146w-a2.dtb
>> <quite-a-long-list-of-all-boards-at-least-I-thought-so>
>> ```
>> 
>> (debarm64_defconfig is my own defconfig based on Debian's kernel config)
>> 
>> That long list didn't have ``rockchip/rk3399-rockpro64-screen.dtbo``.
>> Is there a better/simpler way to validate all rockchip boards without
>> having to explicitly list each and every one of them?
> make defconfig && make
>
> or make dtbs

``make dtbs`` is faster then I recalled, but I do like the detail with
``make CHECK_DTBS=y W=1 rockchip/<board1>.dtb rockchip/<board2>.dtb``.

If I don't specify a list of boards, then it will build them all
including freescale/qcom/renesas/etc, while I only want the rockchip
ones. And as my script takes 20-30 minutes, that will probably be
several hours. Per run. And I ran it after each patch.

Giving ``rockchip/*.dtb[o]`` as parameter is basically what I want, but
I'm not aware of that being possible.
OTOH it's (already) a script, so I will probably just do a ``find`` to
dynamically generate the board list.

Cheers,
  Diederik

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