[PATCH v2 06/15] dt-bindings: ufs: Add "max-device-gear" property for UFS device

Krzysztof Kozlowski krzysztof.kozlowski at linaro.org
Wed Nov 2 12:09:50 PDT 2022


On 31/10/2022 14:02, Manivannan Sadhasivam wrote:
> The maximum gear supported by the UFS device can be specified using the
> "max-device-gear" property. This allows the UFS controller to configure the
> TX/RX gear before starting communication with the UFS device.

This is confusing. The UFS PHY provides gear capability, so what is the
"device" here? The attached memory? How could it report something else
than phy?

The last sentence also suggests that you statically encode gear to avoid
runtime negotiation.

Best regards,
Krzysztof




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