linux-kernel - Re: [PATCH v1 2/4] arm64: dts: qcom: Add PCIe 5 wwan regulator for HAMOA-IOT-EVK board

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Message-ID: <d4c2d00d-005b-4a1a-84d9-4d4221b3b85f@oss.qualcomm.com>
Date: Tue, 14 Oct 2025 11:11:13 +0530
From: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
To: Ziyue Zhang <ziyue.zhang@....qualcomm.com>, andersson@...nel.org,
        konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, jingoohan1@...il.com, mani@...nel.org,
        lpieralisi@...nel.org, kwilczynski@...nel.org, bhelgaas@...gle.com,
        johan+linaro@...nel.org, vkoul@...nel.org, kishon@...nel.org,
        neil.armstrong@...aro.org, abel.vesa@...aro.org, kw@...ux.com
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-phy@...ts.infradead.org, qiang.yu@....qualcomm.com,
        quic_krichai@...cinc.com, quic_vbadigan@...cinc.com
Subject: Re: [PATCH v1 2/4] arm64: dts: qcom: Add PCIe 5 wwan regulator for
 HAMOA-IOT-EVK board



On 9/22/2025 1:25 PM, Ziyue Zhang wrote:
> Specify the vddpe-3v3-supply regulator for PCIe5 using &vreg_wwan to
> ensure proper power configuration.
> 
> Signed-off-by: Ziyue Zhang <ziyue.zhang@....qualcomm.com>
Reviewed-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>

- Krishna Chaitanya.
> ---
>   arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> index df8d6e5c1f45..f0e4abbcc1ac 100644
> --- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> @@ -832,6 +832,10 @@ &mdss_dp3_phy {
>   	status = "okay";
>   };
>   
> +&pcie5 {
> +	vddpe-3v3-supply = <&vreg_wwan>;
> +};
> +
>   &pcie6a {
>   	vddpe-3v3-supply = <&vreg_nvme>;
>   };