Re: [PATCH v2 1/6] dt-bindings: phy: qcom,sa8775p-dwmac-sgmii-phy: add named voltage rails and deprecate phy-supply

[Bartosz Golaszewski]

On Mon, 3 Aug 2026 21:27:57 +0200, Mohd Ayaan Anwar
<mohd.anwar@xxxxxxxxxxxxxxxx> said:
> The Qualcomm SGMII SerDes PHY has two distinct voltage supply rails,
> vdda-0p9 and vdda-1p2. The binding incorrectly described only a single
> generic supply via 'phy-supply'.
>
> Deprecate 'phy-supply' and instead add two named supply properties. The
> 0.9V rail draws a peak current of 46 mA and the 1.2V rail draws 15 mA.
>
> Fixes: 97b795125704 ("dt-bindings: phy: describe the Qualcomm SGMII PHY")
> Signed-off-by: Mohd Ayaan Anwar <mohd.anwar@xxxxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml
> index 90fc8c039219c739eae05cc17108a9a2fc6193df..e573abcb937df914ced25ec87add7955bbba7b87 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml
> @@ -35,6 +35,17 @@ properties:
>    phy-supply:
>      description:
>        Phandle to a regulator that provides power to the PHY.
> +    deprecated: true
> +
> +  vdda-0p9-supply:
> +    description:
> +      Phandle to a 0.9V regulator supply to the PHY, which draws a peak
> +      current of 46 mA.
> +
> +  vdda-1p2-supply:
> +    description:
> +      Phandle to a 1.2V regulator supply to the PHY, which draws a peak
> +      current of 15 mA.
>
>    "#phy-cells":
>      const: 0
>
> --
> 2.34.1
>
>

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>