linux-kernel - Re: [PATCH V5 1/4] ufs: dt-bindings: Document gear and rate limit properties

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Message-ID: <ea81a84c-738e-4e70-a0d4-e5f6d4b1064f@quicinc.com>
Date: Fri, 12 Sep 2025 21:14:04 +0530
From: Ram Kumar Dwivedi <quic_rdwivedi@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: <alim.akhtar@...sung.com>, <avri.altman@....com>, <bvanassche@....org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <mani@...nel.org>, <James.Bottomley@...senpartnership.com>,
        <martin.petersen@...cle.com>, <linux-scsi@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH V5 1/4] ufs: dt-bindings: Document gear and rate limit
 properties



On 09-Sep-25 8:28 PM, Ram Kumar Dwivedi wrote:
> 
> 
> On 03-Sep-25 12:14 PM, Krzysztof Kozlowski wrote:
>> On Tue, Sep 02, 2025 at 10:18:57PM +0530, Ram Kumar Dwivedi wrote:
>>> Add optional "limit-hs-gear" and "limit-rate" properties to the
>>> UFS controller common binding. These properties allow limiting
>>> the maximum HS gear and rate.
>>>
>>> This is useful in cases where the customer board may have signal
>>> integrity, clock configuration or layout issues that prevent reliable
>>> operation at higher gears. Such limitations are especially critical in
>>> those platforms, where stability is prioritized over peak performance.
>>>
>>> Signed-off-by: Ram Kumar Dwivedi <quic_rdwivedi@...cinc.com>
>>> ---
>>>  .../devicetree/bindings/ufs/ufs-common.yaml      | 16 ++++++++++++++++
>>>  1 file changed, 16 insertions(+)
>>
>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> Hi Krzysztof,
> 
> Alim has recommended renaming the "limit-rate" property to "limit-gear-rate".
> Please let me know if you have any concerns.
> 
> Also, may I retain your "Reviewed-by" tag in the next patchset?
>
Hi Krzysztof,

Just a friendly reminder,
Would appreciate your feedback when you have time.

Thanks,
Ram.> Thanks,
> Ram.> 
>> Best regards,
>> Krzysztof
>>
>