Re: [PATCH 2/3] arm64: dts: qcom: sa8155: Add gear and rate limit properties to UFS

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On 01-Aug-25 1:58 PM, Manivannan Sadhasivam wrote:
> On Thu, Jul 24, 2025 at 09:48:53AM GMT, Krzysztof Kozlowski wrote:
>> On 22/07/2025 18:11, Ram Kumar Dwivedi wrote:
>>> Add optional limit-hs-gear and limit-rate properties to the UFS node to
>>> support automotive use cases that require limiting the maximum Tx/Rx HS
>>> gear and rate due to hardware constraints.
>>
>> What hardware constraints? This needs to be clearly documented.
>>
> 
> Ram, both Krzysztof and I asked this question, but you never bothered to reply,
> but keep on responding to other comments. This won't help you to get this series
> merged in any form.
> 
> Please address *all* review comments before posting next iteration.

Hi Mani,

Apologies for the delay in responding. 
I had planned to explain the hardware constraints in the next patchset’s commit message, which is why I didn’t reply earlier. 

To clarify: the limitations are due to customer board designs, not our SoC. Some boards can't support higher gear operation, hence the need for optional limit-hs-gear and limit-rate properties.

I’ll ensure this is clearly documented in the next revision.


Thanks,
Ram.

> 
> - Mani
> 





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