linux-kernel - Re: [PATCH v3 4/4] arm64: dts: qcom: ipq5424: Enable PCIe PHYs and controllers

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Message-ID: <a6d01332-1f3a-483e-ad32-49265bdda4b0@quicinc.com>
Date: Wed, 29 Jan 2025 15:41:29 +0530
From: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>, <andersson@...nel.org>,
        <mturquette@...libre.com>, <sboyd@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <lpieralisi@...nel.org>,
        <kw@...ux.com>, <manivannan.sadhasivam@...aro.org>,
        <bhelgaas@...gle.com>, <konradybcio@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pci@...r.kernel.org>
CC: <quic_srichara@...cinc.com>, <quic_varada@...cinc.com>
Subject: Re: [PATCH v3 4/4] arm64: dts: qcom: ipq5424: Enable PCIe PHYs and
 controllers



On 1/28/2025 5:09 PM, Konrad Dybcio wrote:
> On 25.01.2025 4:59 AM, Manikanta Mylavarapu wrote:
>> Enable the PCIe controller and PHY nodes corresponding to RDP466.
>>
>> Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
>> ---
>> Changes in V3:
>> 	- 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 b6e4bb3328b3..73e6b38ecc26 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
>> +++ b/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
>> @@ -53,6 +53,30 @@ &dwc_1 {
>>  	dr_mode = "host";
>>  };
>>  
>> +&pcie2 {
>> +	pinctrl-0 = <&pcie2_default_state>;
>> +	pinctrl-names = "default";
>> +
>> +	perst-gpios = <&tlmm 31 GPIO_ACTIVE_LOW>;
>> +	status = "okay";
> 
> Please add a new line before 'status'
> 

Okay, sure.

>> +};
>> +
>> +&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>;
>> @@ -147,6 +171,22 @@ data-pins {
>>  			bias-pull-up;
>>  		};
>>  	};
>> +
>> +	pcie2_default_state: pcie2-default-state {
>> +		pins = "gpio31";
>> +		function = "gpio";
>> +		drive-strength = <8>;
>> +		bias-pull-up;
>> +		output-low;
>> +	};
>> +
>> +	pcie3_default_state: pcie3-default-state {
>> +		pins = "gpio34";
>> +		function = "gpio";
>> +		drive-strength = <8>;
>> +		bias-pull-up;
>> +		output-low;
> 
> The GPIO APIs are in control of in/out state instead, please remove the
> last property from both entries

Okay, sure.

Thanks & Regards,
Manikanta.