From: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
Date: Fri, 6 Mar 2026 09:13:52 +0000 (+0530)
Subject: arm64: dts: qcom: lemans-evk: Enable GPIO expander interrupt for Lemans EVK
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=845ea0fca67bb8833356a550251fc3833752a9de;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: qcom: lemans-evk: Enable GPIO expander interrupt for Lemans EVK

Enable PCA9538 expander as interrupt controller on Lemans EVK and configure
the corresponding TLMM pins via pinctrl to operate as GPIO inputs with
internal pull-ups.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260306091355.1178333-2-swati.agarwal@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index 90fce947ca7e..397052394930 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -546,6 +546,11 @@
 		reg = <0x38>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 138 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander0_int>;
+		pinctrl-names = "default";
 	};
 
 	expander1: gpio@39 {
@@ -553,6 +558,11 @@
 		reg = <0x39>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 19 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander1_int>;
+		pinctrl-names = "default";
 	};
 
 	expander2: gpio@3a {
@@ -560,6 +570,11 @@
 		reg = <0x3a>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 139 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander2_int>;
+		pinctrl-names = "default";
 	};
 
 	expander3: gpio@3b {
@@ -567,6 +582,11 @@
 		reg = <0x3b>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 39 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander3_int>;
+		pinctrl-names = "default";
 	};
 
 	eeprom@50 {
@@ -804,6 +824,30 @@
 		};
 	};
 
+	expander0_int: expander0-int-state {
+		pins = "gpio138";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander1_int: expander1-int-state {
+		pins = "gpio19";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander2_int: expander2-int-state {
+		pins = "gpio139";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander3_int: expander3-int-state {
+		pins = "gpio39";
+		function = "gpio";
+		bias-pull-up;
+	};
+
 	pcie0_default_state: pcie0-default-state {
 		clkreq-pins {
 			pins = "gpio1";