Re: [PATCH v1 1/4] dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Add vdda-refgen and refgen supply properties

[Krzysztof Kozlowski]

On Mon, Aug 10, 2026 at 07:27:32PM +0800, Ziyue Zhang wrote:
> QCS8300 and SA8775p PCIe PHYs require dedicated vdda-refgen and refgen
> LDO supplies for QREF to provide a stable reference clock. Without these
> supplies, the PCIe PHYs cannot work properly. Mark them as required for
> the affected compatibles even though it breaks ABI.
> 
> vdda-refgen-supply is required for all three QCS8300 and SA8775p PHY
> compatibles. refgen-supply is required for QCS8300 only, as a workaround
> for a hardware issue where QREF actually depends on refgen3 rather than
> refgen2 as documented, so the PHY driver votes for refgen3 directly via
> this supply.
> 
> Signed-off-by: Ziyue Zhang <ziyue.zhang@xxxxxxxxxxxxxxxx>
> ---
>  .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml       | 27 +++++++++++++++++++
>  1 file changed, 27 insertions(+)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>

Best regards,
Krzysztof