linux-kernel - Re: [PATCH v2 1/2] arm64: dts: qcom: sc7280: Add wake GPIO

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Message-ID: <wjduwhkgroqvzo25dwcspgrogz3orqab4tjosamxodvye47i4a@vd6cgknvx4nh>
Date: Sun, 1 Jun 2025 20:53:42 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	cros-qcom-dts-watchers@...omium.org, Bjorn Helgaas <bhelgaas@...gle.com>, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-pci@...r.kernel.org, quic_vbadigan@...cinc.com, quic_mrana@...cinc.com
Subject: Re: [PATCH v2 1/2] arm64: dts: qcom: sc7280: Add wake GPIO

On Sat, Apr 19, 2025 at 11:13:03AM +0530, Krishna Chaitanya Chundru wrote:
> Add wake gpio which is needed to bring PCIe device state from D3cold to D0.

WAKE# GPIO

> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>

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

- Mani

> ---
>  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts   | 1 +
>  arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 1 +
>  arch/arm64/boot/dts/qcom/sc7280-idp.dtsi       | 1 +
>  3 files changed, 3 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index f54db6345b7af6f77bde496d4a07b857bf9d5f6e..ebfe2c5347be02ea730039e61401633fa49479d2 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -711,6 +711,7 @@ &mdss_edp_phy {
>  
>  &pcieport1 {
>  	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;
>  };
>  
>  &pcie1 {
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> index 60b3cf50ea1d61dd5e8b573b5f1c6faa1c291eee..d435db860625d52842bf8e92d6223f67343121db 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> @@ -477,6 +477,7 @@ &pcie1 {
>  
>  &pcieport1 {
>  	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;
>  };
>  
>  &pm8350c_pwm {
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> index 19910670fc3a74628e6def6b8faf2fa17991d576..e107ae0d62460d0d0909c7351c17b0b15f99a235 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> @@ -416,6 +416,7 @@ &lpass_va_macro {
>  
>  &pcieport1 {
>  	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
> +	wake-gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;
>  };
>  
>  &pcie1 {
> 
> -- 
> 2.34.1
> 
> 

-- 
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