From d99862e7103986b98ed0b79e3527af0e7bc516ef Mon Sep 17 00:00:00 2001
From: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
Date: Tue, 3 Mar 2026 13:51:55 +0530
Subject: [PATCH] arm64: dts: qcom: monaco-evk: Enable GPIO expander interrupt
 for Monaco EVK

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

Signed-off-by: Swati Agarwal <swati.agarwal@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260303082157.523847-2-swati.agarwal@oss.qualcomm.com
[bjorn: Reordered nodes under &tlmm]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/monaco-evk.dts | 78 ++++++++++++++++++++++++-
 1 file changed, 77 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/qcom/monaco-evk.dts
index 21a1ad45229bd..c90735d11b1b9 100644
--- a/arch/arm64/boot/dts/qcom/monaco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts
@@ -371,6 +371,11 @@
 		reg = <0x38>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 56 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander0_int>;
+		pinctrl-names = "default";
 	};
 
 	expander1: gpio@39 {
@@ -378,6 +383,11 @@
 		reg = <0x39>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 16 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander1_int>;
+		pinctrl-names = "default";
 	};
 
 	expander2: gpio@3a {
@@ -385,6 +395,11 @@
 		reg = <0x3a>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 95 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander2_int>;
+		pinctrl-names = "default";
 	};
 
 	expander3: gpio@3b {
@@ -392,6 +407,11 @@
 		reg = <0x3b>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 24 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander3_int>;
+		pinctrl-names = "default";
 	};
 
 	expander4: gpio@3c {
@@ -399,6 +419,11 @@
 		reg = <0x3c>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 96 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander4_int>;
+		pinctrl-names = "default";
 	};
 
 	expander5: gpio@3d {
@@ -406,6 +431,11 @@
 		reg = <0x3d>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 3 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander5_int>;
+		pinctrl-names = "default";
 	};
 
 	expander6: gpio@3e {
@@ -413,6 +443,11 @@
 		reg = <0x3e>;
 		#gpio-cells = <2>;
 		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&tlmm 52 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&expander6_int>;
+		pinctrl-names = "default";
 	};
 };
 
@@ -514,7 +549,6 @@
 };
 
 &tlmm {
-
 	pcie0_default_state: pcie0-default-state {
 		wake-pins {
 			pins = "gpio0";
@@ -554,6 +588,18 @@
 		};
 	};
 
+	expander5_int: expander5-int-state {
+		pins = "gpio3";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander1_int: expander1-int-state {
+		pins = "gpio16";
+		function = "gpio";
+		bias-pull-up;
+	};
+
 	qup_i2c1_default: qup-i2c1-state {
 		pins = "gpio19", "gpio20";
 		function = "qup0_se1";
@@ -584,12 +630,42 @@
 		};
 	};
 
+	expander3_int: expander3-int-state {
+		pins = "gpio24";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander6_int:  expander6-int-state {
+		pins = "gpio52";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander0_int: expander0-int-state {
+		pins = "gpio56";
+		function = "gpio";
+		bias-pull-up;
+	};
+
 	qup_i2c15_default: qup-i2c15-state {
 		pins = "gpio91", "gpio92";
 		function = "qup1_se7";
 		drive-strength = <2>;
 		bias-pull-up;
 	};
+
+	expander2_int: expander2-int-state {
+		pins = "gpio95";
+		function = "gpio";
+		bias-pull-up;
+	};
+
+	expander4_int: expander4-int-state {
+		pins = "gpio96";
+		function = "gpio";
+		bias-pull-up;
+	};
 };
 
 &uart7 {
-- 
2.47.3