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

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Message-Id: <DAYXOI4WITJW.1G5DBWEQDDY1Z@cknow.org>
Date: Sun, 29 Jun 2025 12:09:49 +0200
From: "Diederik de Haas" <didi.debian@...ow.org>
To: "kernel test robot" <lkp@...el.com>, "Rob Herring" <robh@...nel.org>,
 "Krzysztof Kozlowski" <krzk@...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

Hi,

On Sun Jun 29, 2025 at 2:32 AM CEST, kernel test robot wrote:
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on rockchip/for-next]
> [also build test ERROR on next-20250627]
> [cannot apply to robh/for-next krzk/for-next krzk-dt/for-next linus/master v6.16-rc3]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Diederik-de-Haas/arm64-dts-rockchip-Refactor-DSI-nodes-on-px30-boards/20250627-233300
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next
> patch link:    https://lore.kernel.org/r/20250627152645.740981-3-didi.debian%40cknow.org
> patch subject: [PATCH 2/8] arm64: dts: rockchip: Refactor DSI nodes on rk3399 boards
> config: arm64-randconfig-002-20250629 (https://download.01.org/0day-ci/archive/20250629/202506290852.bWro2lBe-lkp@intel.com/config)
> compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250629/202506290852.bWro2lBe-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202506290852.bWro2lBe-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
>>> Error: arch/arm64/boot/dts/rockchip/rk3399-rockpro64-screen.dtso:75.1-6 syntax error
>    FATAL ERROR: Unable to parse input tree

The kernel test robot is right as the ``&mipi_out`` node is missing a
closing ``;``, so thanks for that :-)
The problem is also present in v2, so I'll send a v3 shortly.

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?

Cheers,
  Diederik

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