[PATCH v3 4/4] arm64: dts: allwinner: a523: enable IR on the Avaota A1

[Justin Suess <utilityemal77@gmail.com>]

From: Andre Przywara <andre.przywara@arm.com>

The Avaota A1 board has an IR receiver chip on the PCB (next to the
Ethernet jacks), wired to the PI8 pin on the SoC.

Add the pin description to the PIO DT node, and enable the CIR receiver
in the main power domain.

Tested on the board with evtest and some random TV remote control.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi          | 7 +++++++
 arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index c2de662140ce..219fd76a4710 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -155,6 +155,13 @@ i2s2_pi_pins: i2s2-pi-pins {
 				bias-disable;
 			};
 
+			/omit-if-no-ref/
+			ir_rx_pin: ir-rx-pin {
+				pins = "PI8";
+				allwinner,pinmux = <3>;
+				function = "cir_rx";
+			};
+
 			/omit-if-no-ref/
 			ledc_ph_pin: ledc-ph-pin {
 				pins = "PH19";
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
index 474354fbfcec..994f1e4f0ce7 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
@@ -100,6 +100,12 @@ &gpu {
 	status = "okay";
 };
 
+&ir {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ir_rx_pin>;
+	status = "okay";
+};
+
 &ledc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ledc_ph_pin>;
-- 
2.54.0