Re: [PATCH v2 3/3] arm64: dts: qcom: msm8998: set qcom,no-msa-ready-indicator for wifi

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On 28/03/2024 18:39, Marc Gonzalez wrote:
> The ath10k driver waits for an "MSA_READY" indicator
> to complete initialization. If the indicator is not
> received, then the device remains unusable.
> 
> cf. ath10k_qmi_driver_event_work()
> 
> Several msm8998-based devices are affected by this issue.
> Oddly, it seems safe to NOT wait for the indicator, and
> proceed immediately when QMI_EVENT_SERVER_ARRIVE.
> 
> Jeff Johnson wrote:
> 
>   The feedback I received was "it might be ok to change all ath10k qmi
>   to skip waiting for msa_ready", and it was pointed out that ath11k
>   (and ath12k) do not wait for it.
> 
>   However with so many deployed devices, "might be ok" isn't a strong
>   argument for changing the default behavior.
> 

I think you got pretty clear comments:

"This sounds more like a firmware feature, not a hardware feature."

"This is why having this property in DT does not look right
place for this."

Best regards,
Krzysztof





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