[PATCH v2 2/6] pintrl: meson: document GPIO IRQ DT binding

[Heiner Kallweit <hkallweit1@gmail.com>]

Document the DT binding for GPIO IRQ support on Amlogic Meson SoC's.

This documentation is intentionally not placed under
interrupt-controllers as GPIO IRQ support on these SoC's acts more
like an interrupt multiplexer.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
v2:
- remove syscon
---
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 436b8750..44422b85 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -312,6 +312,19 @@
 				status = "disabled";
 			};
 
+			gpio_irq@9880 {
+				compatible = "amlogic,meson-gpio-interrupt";
+				reg = <0x0 0x09880 0x0 0x10>;
+				interrupts = <GIC_SPI 64 IRQ_TYPE_NONE>,
+					     <GIC_SPI 65 IRQ_TYPE_NONE>,
+					     <GIC_SPI 66 IRQ_TYPE_NONE>,
+					     <GIC_SPI 67 IRQ_TYPE_NONE>,
+					     <GIC_SPI 68 IRQ_TYPE_NONE>,
+					     <GIC_SPI 69 IRQ_TYPE_NONE>,
+					     <GIC_SPI 70 IRQ_TYPE_NONE>,
+					     <GIC_SPI 71 IRQ_TYPE_NONE>;
+			};
+
 			watchdog@98d0 {
 				compatible = "amlogic,meson-gx-wdt", "amlogic,meson-gxbb-wdt";
 				reg = <0x0 0x098d0 0x0 0x10>;
-- 
2.12.2