linux-kernel - Re: [PATCH v4 5/5] ARM: dts: qcom: sdx65-mtp: Enable PCIe EP

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Date:   Tue, 28 Mar 2023 15:30:50 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rohit Agarwal <quic_rohiagar@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, lee@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, mani@...nel.org,
        lpieralisi@...nel.org, kw@...ux.com, bhelgaas@...gle.com,
        manivannan.sadhasivam@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH v4 5/5] ARM: dts: qcom: sdx65-mtp: Enable PCIe EP



On 17.03.2023 07:53, Rohit Agarwal wrote:
> Enable PCIe Endpoint controller on the SDX65 MTP board based
> on Qualcomm SDX65 platform.
> 
> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
> ---
>  arch/arm/boot/dts/qcom-sdx65-mtp.dts | 34 ++++++++++++++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-sdx65-mtp.dts b/arch/arm/boot/dts/qcom-sdx65-mtp.dts
> index 70720e6..afe970a 100644
> --- a/arch/arm/boot/dts/qcom-sdx65-mtp.dts
> +++ b/arch/arm/boot/dts/qcom-sdx65-mtp.dts
> @@ -245,6 +245,17 @@
>  	status = "okay";
>  };
>  
> +&pcie_ep {
> +	pinctrl-0 = <&pcie_ep_clkreq_default &pcie_ep_perst_default
> +			&pcie_ep_wake_default>;
This seems misaligned, the &s should be one below another

But other than that:

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
> +	pinctrl-names = "default";
> +
> +	reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
> +
> +	status = "okay";
> +};
> +
>  &pcie_phy {
>  	vdda-phy-supply = <&vreg_l1b_1p2>;
>  	vdda-pll-supply = <&vreg_l4b_0p88>;
> @@ -277,6 +288,29 @@
>  	status = "okay";
>  };
>  
> +&tlmm {
> +	pcie_ep_clkreq_default: pcie-ep-clkreq-default-state {
> +		pins = "gpio56";
> +		function = "pcie_clkreq";
> +		drive-strength = <2>;
> +		bias-disable;
> +	};
> +
> +	pcie_ep_perst_default: pcie-ep-perst-default-state {
> +		pins = "gpio57";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
> +	pcie_ep_wake_default: pcie-ep-wake-default-state {
> +		pins = "gpio53";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-disable;
> +	};
> +};
> +
>  &usb {
>  	status = "okay";
>  };