[PATCH 2/2] arm64: dts: amlogic: a9: Add IR controller support
From: Xianwei Zhao via B4 Relay
Date: Sun Jul 05 2026 - 22:44:28 EST
From: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
Add the IR controller node for the Amlogic A9 SoC and describe the
corresponding remote input pin configuration.
Enable the IR controller on the Amlogic A9 A311Y3 BY401 board with the
proper pinctrl setting.
Signed-off-by: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts | 6 ++++++
arch/arm64/boot/dts/amlogic/amlogic-a9.dtsi | 14 ++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts b/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts
index a6b380ca47a5..044d1e8e086c 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts
+++ b/arch/arm64/boot/dts/amlogic/amlogic-a9-a311y3-by401.dts
@@ -38,3 +38,9 @@ secmon_reserved: secmon@5000000 {
&uart_b {
status = "okay";
};
+
+&ir {
+ status = "okay";
+ pinctrl-0 = <&remote_pins>;
+ pinctrl-names = "default";
+};
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a9.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-a9.dtsi
index b0e0fadeed82..72d1cc88c9e6 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-a9.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-a9.dtsi
@@ -241,6 +241,13 @@ test_n: gpio@c0 {
#gpio-cells = <2>;
gpio-ranges = <&aobus_pinctrl 0 (AMLOGIC_GPIO_TEST_N<<8) 1>;
};
+
+ func-ir-in {
+ remote_pins: group-remote-pins {
+ pinmux = <AML_PINMUX(AMLOGIC_GPIO_D, 5, 1)>;
+ bias-disable;
+ };
+ };
};
gpio_ao_intc: interrupt-controller@4080 {
@@ -254,6 +261,13 @@ gpio_ao_intc: interrupt-controller@4080 {
394 395 396 397 398 399 400 401 402 403>;
};
+ ir: ir@14080 {
+ compatible = "amlogic,a9-ir", "amlogic,meson-s4-ir";
+ reg = <0x0 0x14080 0x0 0x30>;
+ interrupts = <GIC_SPI 413 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
uart_b: serial@1e000 {
compatible = "amlogic,a9-uart",
"amlogic,meson-s4-uart";
--
2.52.0