Re: [PATCH v6 0/3] arm64: dts: qcom: sc8280xp-blackrock: dt definition for Windows Dev Kit 2023

Re: [PATCH v6 0/3] arm64: dts: qcom: sc8280xp-blackrock: dt definition for Windows Dev Kit 2023

[Kalle Valo]

Jens Glathe via B4 Relay
<devnull+jens.glathe.oldschoolsolutions.biz@kernel.org> writes:

> "Microsoft Windows Dev Kit 2023" aka "Blackrock" aka "Project Volterra"
>
> Device tree for the Microsoft Windows Dev Kit 2023. This work
> is based on the initial work of Merck Hung <merckhung@gmail.com>.
>
> The Windows Dev Kit 2023 is a nice little desktop based on sc8280xp.
> Link: https://learn.microsoft.com/en-us/windows/arm/dev-kit/
>
> Supported features:
> - USB type-c and type-a ports
> - minidp connector
> - built-in r8152 Ethernet adapter
> - PCIe devices
> - nvme
> - ath11k WiFi (WCN6855)
> - WCN6855 Bluetooth
> - A690 GPU
> - ADSP and CDSP
> - GPIO keys
> - Audio definition (works via USB)
>
> Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
>
> Original work: https://github.com/merckhung/linux_ms_dev_kit/blob/ms-dev-kit-2023-v6.3.0/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-dev-kit-2023.dts
>
> This dt is more or less deducted from the Thinkpad X13s.
> It contains a lot of guesswork, and also a lot of research on
> what works with the Windows Dev Kit.
>
> The WiFi definition references qcom,ath11k-calibration-variant = "MS_Volterra"
> which is unfortunately not yet in the linux-firmware. The ath11k driver finds
> the default one for 
> "bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=0108,qmi-chip-id=2|18,qmi-board-id=255"
> when the entry with the variant is not found which is quite sub-optimal. I 
> have placed a pr on github/qca-swiss-army-knife:
> https://github.com/qca/qca-swiss-army-knife/pull/9 that provides an amended 
> board-2.bin and a board-2.json to generate it. 

qca-swiss-army-knife is only for scripts or similar, not for board
files. For ath11k board files it's best to file a bug in bugzilla:

https://wireless.docs.kernel.org/en/latest/en/users/drivers/ath11k/bugreport.html

For ath11k discussions we have a mailing list, adding it now:

https://wireless.docs.kernel.org/en/latest/en/users/drivers/ath11k/mailinglist.html

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