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 90fce947ca7e5c4af49952b012647664cffbb687..39705239493050bf8f1102475d6bc2dc387811d2 100644 (file)
--- 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";