[PATCH 1/2] ARM: dts: aspeed: sanmiguel: Add IOEXP interrupt pin settings

[Potin Lai]

Kernel dmesg reports IRQ #44 being disabled due to unhandled
interrupts from multiple PCA953x IO expanders:

```
[ 447.047861] irq 44: nobody cared (try booting with the "irqpoll" option)
[ 447.063124] handlers:
[ 447.068176] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.087268] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.106344] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.125421] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.144513] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.163587] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.182663] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.201756] [<2ab869ad>] irq_default_primary_handler threaded [<b8adc310>] pca953x_irq_handler
[ 447.220837] Disabling IRQ #44
```

The affected IOEXP nodes are missing interrupt pin configuration in
the device tree, causing the interrupt line to remain asserted and
resulting in repeated unhandled IRQ events.

Add the required interrupt-related properties for the affected IOEXP
devices to ensure proper interrupt handling and prevent the IRQ from
being disabled.

Signed-off-by: Potin Lai <potin.lai@xxxxxxxxxxxx>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts
index 74c8c1772109..61dbef45f8b0 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts
@@ -334,6 +334,8 @@ hmc_ioexp: gpio@20 {
 		reg = <0x20>;
 		gpio-controller;
 		#gpio-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
 
 		gpio-line-names =
 			"", "", "HMC_EROT_FATAL_ERROR_L-I", "",
@@ -552,6 +554,8 @@ smm_ext_ioexp: gpio@38 {
 		reg = <0x38>;
 		gpio-controller;
 		#gpio-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
 
 		gpio-line-names =
 			"SSD0_PRSNT_L-I", "E1S_PWR_EN-O",

-- 
2.52.0