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Re: [PATCH 1/2] dt-bindings: net: wireless: ath10k: add qcom,no-msa-ready-indicator prop

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On 2/29/2024 10:40 AM, Conor Dooley wrote:
> On Wed, Feb 28, 2024 at 06:37:08PM +0200, Kalle Valo wrote:
>> Marc Gonzalez <mgonzalez@xxxxxxxxxx> writes:
> 
>>> As mentioned in my other reply, there are several msm8998-based
>>> devices affected by this issue. Is it not appropriate to consider
>>> a kernel-based work-around?
>>
>> Sorry, not following you here. But I'll try to answer anyway:
>>
>> I have understood that Device Tree is supposed to describe hardware, not
>> software. This is why having this property in DT does not look right
>> place for this. For example, if the ath10k firmware is fixed then DT
>> would have to be changed even though nothing changed in hardware. But of
>> course DT maintainers have the final say.
> 
> I dunno, if the firmware affects the functionality of the hardware in a
> way that cannot be detected from the operating system at runtime how
> else is it supposed to deal with that?
> The devicetree is supposed to describe hardware, yes, but at a certain
> point the line between firmware and hardware is invisible :)
> Not describing software is mostly about not using it to determine
> software policy in the operating system.

FWIW I've compared ath10k to the out-of-tree Android driver and there
are discrepancies in this area. I've asked the development team that
supports ath10k to provide a recommendation.

/jeff




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