linux-kernel - Re: [PATCH v6 2/2] arm64: dts: qcom: ipq5424: Enable PCIe PHYs and controllers

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Message-ID: <ezodm6qh63fs43xx6cw3smspfqkwqb5qscwfee36k5vtktguc4@tlqhuvjg2bly>
Date: Wed, 2 Apr 2025 17:20:13 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        quic_varada@...cinc.com, quic_srichara@...cinc.com
Subject: Re: [PATCH v6 2/2] arm64: dts: qcom: ipq5424: Enable PCIe PHYs and
 controllers

On Wed, Apr 02, 2025 at 03:57:23PM +0530, Manikanta Mylavarapu wrote:
> Enable the PCIe controller and PHY nodes corresponding to RDP466.
> 
> Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
> ---
> Changes in V6:
> 	- No change.
> 
>  arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts | 41 ++++++++++++++++++++-
>  1 file changed, 40 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts b/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
> index 0fd0ebe0251d..1f89530cb035 100644
> --- a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
> +++ b/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
> @@ -82,6 +82,32 @@ &dwc_1 {
>  	dr_mode = "host";
>  };
>  
> +&pcie2 {
> +	pinctrl-0 = <&pcie2_default_state>;
> +	pinctrl-names = "default";
> +
> +	perst-gpios = <&tlmm 31 GPIO_ACTIVE_LOW>;


No wake-gpios? Please document it in the commit message.

> +
> +	status = "okay";
> +};
> +
> +&pcie2_phy {
> +	status = "okay";
> +};
> +
> +&pcie3 {
> +	pinctrl-0 = <&pcie3_default_state>;
> +	pinctrl-names = "default";
> +
> +	perst-gpios = <&tlmm 34 GPIO_ACTIVE_LOW>;
> +
> +	status = "okay";
> +};
> +
> +&pcie3_phy {
> +	status = "okay";
> +};
> +
>  &qusb_phy_0 {
>  	vdd-supply = <&vreg_misc_0p925>;
>  	vdda-pll-supply = <&vreg_misc_1p8>;
> @@ -197,6 +223,20 @@ data-pins {
>  			bias-pull-up;
>  		};
>  	};
> +
> +	pcie2_default_state: pcie2-default-state {
> +		pins = "gpio31";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-pull-up;
> +	};
> +
> +	pcie3_default_state: pcie3-default-state {
> +		pins = "gpio34";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-pull-up;
> +	};
>  };
>  
>  &uart1 {
> @@ -216,4 +256,3 @@ &usb3 {
>  &xo_board {
>  	clock-frequency = <24000000>;
>  };
> -
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry