linux-kernel - Re: [PATCH v4 6/8] arm64: dts: qcom: qcs8300: enable pcie0 interface

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Message-ID: <20250318054258.roq5zifhqfkjge4e@thinkpad>
Date: Tue, 18 Mar 2025 11:12:58 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Cc: bhelgaas@...gle.com, lpieralisi@...nel.org, kw@...ux.com,
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
	vkoul@...nel.org, kishon@...nel.org, andersson@...nel.org,
	konradybcio@...nel.org, dmitry.baryshkov@...aro.org,
	neil.armstrong@...aro.org, abel.vesa@...aro.org,
	quic_qianyu@...cinc.com, quic_krichai@...cinc.com,
	johan+linaro@...nel.org, linux-arm-msm@...r.kernel.org,
	linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
	Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v4 6/8] arm64: dts: qcom: qcs8300: enable pcie0 interface

On Mon, Mar 10, 2025 at 02:31:01PM +0800, Ziyue Zhang wrote:
> Add configurations in devicetree for PCIe0, board related gpios,
> PMIC regulators, etc.
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>

With subject change mentioned by Dmitry,

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
>  arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 40 +++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
> index b5c9f89b3435..c3fe3b98b1b6 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
> @@ -285,6 +285,23 @@ queue3 {
>  	};
>  };
>  
> +&pcie0 {
> +	perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
> +
> +	pinctrl-0 = <&pcie0_default_state>;
> +	pinctrl-names = "default";
> +
> +	status = "okay";
> +};
> +
> +&pcie0_phy {
> +	vdda-phy-supply = <&vreg_l6a>;
> +	vdda-pll-supply = <&vreg_l5a>;
> +
> +	status = "okay";
> +};
> +
>  &qupv3_id_0 {
>  	status = "okay";
>  };
> @@ -310,6 +327,29 @@ &serdes0 {
>  };
>  
>  &tlmm {
> +	pcie0_default_state: pcie0-default-state {
> +		wake-pins {
> +			pins = "gpio0";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-pull-up;
> +		};
> +
> +		clkreq-pins {
> +			pins = "gpio1";
> +			function = "pcie0_clkreq";
> +			drive-strength = <2>;
> +			bias-pull-up;
> +		};
> +
> +		perst-pins {
> +			pins = "gpio2";
> +			function = "gpio";
> +			drive-strength = <2>;
> +			bias-pull-down;
> +		};
> +	};
> +
>  	ethernet0_default: ethernet0-default-state {
>  		ethernet0_mdc: ethernet0-mdc-pins {
>  			pins = "gpio5";
> -- 
> 2.34.1
> 

-- 
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