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

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Message-ID: <bcbd2f83-2599-4a2e-ad69-64edcb97dfbe@quicinc.com>
Date: Thu, 3 Apr 2025 10:38:05 +0530
From: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.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 4/2/2025 7:50 PM, Dmitry Baryshkov wrote:
> 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.
> 

Hi Dmitry,

Thank you for reviewing the patch.

The wake GPIO is dropped because the PCIe on the IPQ5424 doesn't support low power mode.
I will document this information in the commit message and post the next version.

Thanks & Regards,
Manikanta.