None of the GPIO interrupts are firing on j721s2.

The GPIO toggling works.

The way i tested is documented here: https://e2e.ti.com/support/processors/f/791/t/1058595

The issue is root caused to interrupt router configuration. The fix snippet:

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 57990eba5..dbd5ee283 100644
— a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -103,7 +103,7 @@
#interrupt-cells = <1>;
ti,sci = <&sms>;
ti,sci-dev-id = <148>;

• ti,interrupt-ranges = <8 360 56>;
  + ti,interrupt-ranges = <8 392 56>;
  };

main_pmx0: pinctrl@11c000 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index f31749ba9..c23fb6f7b 100644
— a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -65,7 +65,7 @@
#interrupt-cells = <1>;
ti,sci = <&sms>;
ti,sci-dev-id = <125>;

• ti,interrupt-ranges = <16 928 16>;
  + ti,interrupt-ranges = <16 960 16>;