linux-kernel - Re: [PATCH V2 1/4] ufs: dt-bindings: Document gear and rate limit properties

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Message-ID: <20250824-elated-granite-leopard-5633c7@kuoka>
Date: Sun, 24 Aug 2025 11:29:18 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Ram Kumar Dwivedi <quic_rdwivedi@...cinc.com>
Cc: mani@...nel.org, alim.akhtar@...sung.com, avri.altman@....com, 
	bvanassche@....org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	andersson@...nel.org, konradybcio@...nel.org, agross@...nel.org, 
	James.Bottomley@...senpartnership.com, martin.petersen@...cle.com, linux-arm-msm@...r.kernel.org, 
	linux-scsi@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 1/4] ufs: dt-bindings: Document gear and rate limit
 properties

On Thu, Aug 21, 2025 at 03:46:06PM +0530, Ram Kumar Dwivedi wrote:
> +  limit-hs-gear:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    minimum: 1
> +    maximum: 5

default:

> +    description:
> +      Restricts the maximum HS gear used in both TX and RX directions,
> +      typically for hardware or power constraints in automotive use cases.
> +
> +  limit-rate:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [1, 2]

default:

> +    description:
> +      Restricts the UFS controller to Rate A (1) or Rate B (2) for both

Is 1 and 2 known in UFS spec? Feels like you wanted here string for 'a'
and 'b'.

Best regards,
Krzysztof