drivers/i2c/nau8825: Support nau8825 for ACPI GPIO descriptors

Add definitions to describe GPIOs in generated ACPI objects.
The method allow either write a GpioInt() or Interrupt() descriptor.

Signed-off-by: Seven Lee <wtli@nuvoton.com>
Change-Id: I37fec7b0b9324dbfb61b7a8bea80f45026c54409
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51922
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/drivers/i2c/nau8825/nau8825.c b/src/drivers/i2c/nau8825/nau8825.c
index a0769d0..01b1f35 100644
--- a/src/drivers/i2c/nau8825/nau8825.c
+++ b/src/drivers/i2c/nau8825/nau8825.c
@@ -47,7 +47,11 @@
 	acpigen_write_name("_CRS");
 	acpigen_write_resourcetemplate_header();
 	acpi_device_write_i2c(&i2c);
-	acpi_device_write_interrupt(&config->irq);
+	/* Allow either GpioInt() or Interrupt() */
+	if (config->irq_gpio.pin_count)
+		acpi_device_write_gpio(&config->irq_gpio);
+	else
+		acpi_device_write_interrupt(&config->irq);
 	acpigen_write_resourcetemplate_footer();
 
 	/* Device Properties */