[PATCH] arm64: dts: imx8mq-evk: Add remote control

[Rogerio Pimentel da Silva]

Add remote control to i.MX8M EVK device tree.

The rc protocol must be selected by writing to:
/sys/devices/platform/ir-receiver/rc/rc0/protocols

On my tests, I used "nec" rc protocol:
echo nec > protocols

Tested using evetest:
evtest /dev/input/event0

Output log for each key pressed:
Event: 
time 1568122608.267845, -------------- SYN_REPORT ------------
Event: 
time 1568122610.503835, type 4 (EV_MSC), code 4 (MSC_SCAN), value 440

Signed-off-by: Rogerio Pimentel da Silva <rpimentel.silva@xxxxxxxxx>
---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 6ede46f7d45b..bd81e4a45ff5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -50,6 +50,13 @@
 			  900000 0x1>;
 	};
 
+	ir-receiver {
+		compatible = "gpio-ir-receiver";
+		gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ir>;
+	};
+
 	wm8524: audio-codec {
 		#sound-dai-cells = <0>;
 		compatible = "wlf,wm8524";
@@ -340,6 +347,12 @@
 		>;
 	};
 
+	pinctrl_ir: irgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO12_GPIO1_IO12		0x4f
+		>;
+	};
+
 	pinctrl_pcie0: pcie0grp {
 		fsl,pins = <
 			MX8MQ_IOMUXC_I2C4_SCL_PCIE1_CLKREQ_B		0x76
-- 
2.17.1