linux-kernel - [PATCH v4 1/3] arm64: dts: qcom: sc7280: Add wake GPIO

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Message-Id: <20250801-wake_irq_support-v4-1-6b6639013a1a@oss.qualcomm.com>
Date: Fri, 01 Aug 2025 16:29:42 +0530
From: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
To: 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>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@...nel.org>, Len Brown <lenb@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Danilo Krummrich <dakr@...nel.org>
Cc: 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, sherry.sun@....com,
        linux-pm@...r.kernel.org,
        Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Manivannan Sadhasivam <mani@...nel.org>
Subject: [PATCH v4 1/3] arm64: dts: qcom: sc7280: Add wake GPIO

Add WAKE# gpio which is needed to bring PCIe device state
from D3cold to D0.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
---
 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 10c152ac03c874df5f1dc386d9079d3db1c55362..a4d85772f86955ad061433b138581fa9d81110a4 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -810,6 +810,7 @@ &mdss_edp_phy {
 
 &pcieport1 {
 	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
 };
 
 &pcie1 {
diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
index 60b3cf50ea1d61dd5e8b573b5f1c6faa1c291eee..5e73060771329cade097bf1a71056a456a7937d7 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_HIGH>;
 };
 
 &pm8350c_pwm {
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 0b0212b670797a364d7f0e7a458fc73245fff8db..240513774612fb2bfcdb951e5a5a77c49f49eb82 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -418,6 +418,7 @@ &lpass_va_macro {
 
 &pcieport1 {
 	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
 };
 
 &pcie1 {

-- 
2.34.1