linux-kernel - Re: [PATCH] arm64: dts: rockchip: quartzpro64: Enable the GPU

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Date: Tue, 26 Mar 2024 20:27:29 +0100
From: Dragan Simic <dsimic@...jaro.org>
To: Rob Herring <robh@...nel.org>
Cc: conor+dt@...nel.org, kernel@...labora.com, devicetree@...r.kernel.org,
 sebastian.reichel@...labora.com, heiko@...ech.de,
 linux-arm-kernel@...ts.infradead.org, boris.brezillon@...labora.com,
 linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
 robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org
Subject: Re: [PATCH] arm64: dts: rockchip: quartzpro64: Enable the GPU

On 2024-03-26 20:11, Rob Herring wrote:
> On Mon, 25 Mar 2024 17:19:04 +0100, Dragan Simic wrote:
>> Following the approach used to enable the Mali GPU on the rk3588-evb1, 
>> [1]
>> do the same for the Pine64 QuartzPro64, which uses nearly identical 
>> hardware
>> design as the RK3588 EVB1.
>> 
>> The slight disadvantage is that the regulator coupling logic requires 
>> the
>> regulators to be always on, which is also noted in the comments.  This 
>> is
>> obviously something to be improved at some point in the future, but 
>> should
>> be fine for now, especially because the QuartzPro64 isn't a 
>> battery-powered
>> board, so low power consumption isn't paramount.
>> 
>> [1] 
>> https://lore.kernel.org/linux-rockchip/20240325153850.189128-5-sebastian.reichel@collabora.com/
>> 
>> Signed-off-by: Dragan Simic <dsimic@...jaro.org>
>> ---
>>  .../arm64/boot/dts/rockchip/rk3588-quartzpro64.dts | 14 
>> ++++++++++++++
>>  1 file changed, 14 insertions(+)
> 
> My bot found new DTB warnings on the .dts files added or changed in 
> this
> series.
> 
> Some warnings may be from an existing SoC .dtsi. Or perhaps the 
> warnings
> are fixed by another series. Ultimately, it is up to the platform
> maintainer whether these warnings are acceptable or not. No need to 
> reply
> unless the platform maintainer has comments.
> 
> If you already ran DT checks and didn't see these error(s), then
> make sure dt-schema is up to date:
> 
>   pip3 install dtschema --upgrade
> 
> 
> New warnings running 'make CHECK_DTBS=y
> rockchip/rk3588-quartzpro64.dtb' for
> 0f3759ee390f245dac447bbee038445ddfecbec0.1711383286.git.dsimic@...jaro.org:
> 
> Error: arch/arm64/boot/dts/rockchip/rk3588-quartzpro64.dts:288.1-5
> Label or path gpu not found
> FATAL ERROR: Syntax error parsing input tree
> make[3]: *** [scripts/Makefile.lib:427:
> arch/arm64/boot/dts/rockchip/rk3588-quartzpro64.dtb] Error 1
> make[2]: *** [scripts/Makefile.build:485: arch/arm64/boot/dts/rockchip] 
> Error 2
> make[2]: Target 'arch/arm64/boot/dts/rockchip/rk3588-quartzpro64.dtb'
> not remade because of errors.
> make[1]: *** [/home/rob/proj/linux-dt-testing/Makefile:1387:
> rockchip/rk3588-quartzpro64.dtb] Error 2
> make: *** [Makefile:240: __sub-make] Error 2
> make: Target 'rockchip/rk3588-quartzpro64.dtb' not remade because of 
> errors.

This error can be safely ignored, because this patch is supposed
to be applied together with a recent patch series, [1] or in more
detail, after one of the patches in that series [2] that adds the
missing "gpu" node.

[1] 
https://lore.kernel.org/linux-rockchip/20240326165232.73585-1-sebastian.reichel@collabora.com/T/#u
[2] 
https://lore.kernel.org/linux-rockchip/20240326165232.73585-3-sebastian.reichel@collabora.com/