Re: [PATCH v6 7/8] arm64: dts: qcom: mahua: Add QREF regulator supplies to TCSR

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 6/22/26 7:11 AM, Qiang Yu wrote:
> Mahua has a different PCIe QREF topology from glymur. Override the TCSR
> compatible to qcom,mahua-tcsr in mahua.dtsi, and wire up the required
> LDO supplies for the PCIe clkref paths on the CRD board.
> 
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/mahua-crd.dts | 15 +++++++++++++++
>  arch/arm64/boot/dts/qcom/mahua.dtsi    |  4 ++++
>  2 files changed, 19 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/mahua-crd.dts b/arch/arm64/boot/dts/qcom/mahua-crd.dts
> index 9c8244e892dd..8b42f5174b31 100644
> --- a/arch/arm64/boot/dts/qcom/mahua-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/mahua-crd.dts
> @@ -19,3 +19,18 @@ / {
>  	model = "Qualcomm Technologies, Inc. Mahua CRD";
>  	compatible = "qcom,mahua-crd", "qcom,mahua";
>  };
> +
> +&tcsr {
> +	vdda-qrefrpt0-0p9-supply = <&vreg_l2f_e1_0p83>;
> +	vdda-qrefrpt1-0p9-supply = <&vreg_l2f_e1_0p83>;
> +	vdda-qrefrpt2-0p9-supply = <&vreg_l2f_e1_0p83>;
> +	vdda-qrefrpt3-0p9-supply = <&vreg_l1f_e1_0p82>;
> +	vdda-qrefrpt4-0p9-supply = <&vreg_l2h_e0_0p72>;
> +	vdda-qrefrpt5-0p9-supply = <&vreg_l2h_e0_0p72>;
> +	vdda-qrefrx1-0p9-supply = <&vreg_l2f_e1_0p83>;
> +	vdda-qrefrx2-0p9-supply = <&vreg_l2f_e1_0p83>;
> +	vdda-qrefrx3-0p9-supply = <&vreg_l2h_e0_0p72>;
> +	vdda-qreftx1-0p9-supply = <&vreg_l1f_e1_0p82>;
> +	vdda-refgen3-0p9-supply = <&vreg_l1f_e1_0p82>;
> +	vdda-refgen3-1p2-supply = <&vreg_l4f_e1_1p08>;

The supplies are correct, but QREF uses refgen4 on Mahua

There's also rx0 with a 0p9 supply on l2f_e1

Konrad