linux-kernel - Re: [PATCH v7 7/7] arm64: dts: qcom: ipq5332-rdp441: Enable PCIe phys and controllers

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Message-ID: <20250203162706.bz2xtpyuvylgzfdw@thinkpad>
Date: Mon, 3 Feb 2025 21:57:06 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Varadarajan Narayanan <quic_varada@...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, p.zabel@...gutronix.de,
	dmitry.baryshkov@...aro.org, quic_nsekar@...cinc.com,
	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,
	Praveenkumar I <quic_ipkumar@...cinc.com>,
	Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v7 7/7] arm64: dts: qcom: ipq5332-rdp441: Enable PCIe
 phys and controllers

On Wed, Jan 22, 2025 at 12:04:11PM +0530, Varadarajan Narayanan wrote:
> From: Praveenkumar I <quic_ipkumar@...cinc.com>
> 
> Enable the PCIe controller and PHY nodes for RDP 441.
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>

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

- Mani

> ---
> v5: Add 'Reviewed-by: Konrad Dybcio'
> 
> v4: Fix nodes sort order
>     Use property-n followed by property-names
> 
> v3: Reorder nodes alphabetically
>     Fix commit subject
> ---
>  arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts | 76 +++++++++++++++++++++
>  1 file changed, 76 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts b/arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts
> index 846413817e9a..79ec77cfe552 100644
> --- a/arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts
> +++ b/arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts
> @@ -32,6 +32,34 @@ &sdhc {
>  	status = "okay";
>  };
>  
> +&pcie0 {
> +	pinctrl-0 = <&pcie0_default>;
> +	pinctrl-names = "default";
> +
> +	perst-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 39 GPIO_ACTIVE_LOW>;
> +
> +	status = "okay";
> +};
> +
> +&pcie0_phy {
> +	status = "okay";
> +};
> +
> +&pcie1 {
> +	pinctrl-0 = <&pcie1_default>;
> +	pinctrl-names = "default";
> +
> +	perst-gpios = <&tlmm 47 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 48 GPIO_ACTIVE_LOW>;
> +
> +	status = "okay";
> +};
> +
> +&pcie1_phy {
> +	status = "okay";
> +};
> +
>  &tlmm {
>  	i2c_1_pins: i2c-1-state {
>  		pins = "gpio29", "gpio30";
> @@ -40,6 +68,54 @@ i2c_1_pins: i2c-1-state {
>  		bias-pull-up;
>  	};
>  
> +	pcie0_default: pcie0-default-state {
> +		clkreq-n-pins {
> +			pins = "gpio37";
> +			function = "pcie0_clk";
> +			drive-strength = <8>;
> +			bias-pull-up;
> +		};
> +
> +		perst-n-pins {
> +			pins = "gpio38";
> +			function = "gpio";
> +			drive-strength = <8>;
> +			bias-pull-up;
> +			output-low;
> +		};
> +
> +		wake-n-pins {
> +			pins = "gpio39";
> +			function = "pcie0_wake";
> +			drive-strength = <8>;
> +			bias-pull-up;
> +		};
> +	};
> +
> +	pcie1_default: pcie1-default-state {
> +		clkreq-n-pins {
> +			pins = "gpio46";
> +			function = "pcie1_clk";
> +			drive-strength = <8>;
> +			bias-pull-up;
> +		};
> +
> +		perst-n-pins {
> +			pins = "gpio47";
> +			function = "gpio";
> +			drive-strength = <8>;
> +			bias-pull-up;
> +			output-low;
> +		};
> +
> +		wake-n-pins {
> +			pins = "gpio48";
> +			function = "pcie1_wake";
> +			drive-strength = <8>;
> +			bias-pull-up;
> +		};
> +	};
> +
>  	sdc_default_state: sdc-default-state {
>  		clk-pins {
>  			pins = "gpio13";
> -- 
> 2.34.1
> 

-- 
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