[PATCH v4 4/4] [DO NOT MERGE] arm64: dts: allwinner: pinephone: Add keyboard

[Samuel Holland]

The official PinePhone keyboard accessory connects to the phone's POGO
pins for I2C and interrupts. It has an Injoinic IP5209 power bank IC
connected to the keyboard's internal I2C bus.

Signed-off-by: Samuel Holland <samuel at sholland.org>
---

(no changes since v3)

Changes in v3:
 - Rename i2c-bus to i2c

 .../dts/allwinner/sun50i-a64-pinephone.dtsi    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index 87847116ab6d..1d757cce246a 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -208,6 +208,24 @@ accelerometer at 68 {
 /* Connected to pogo pins (external spring based pinheader for user addons) */
 &i2c2 {
 	status = "okay";
+
+	keyboard at 15 {
+		compatible = "pine64,pinephone-keyboard";
+		reg = <0x15>;
+		interrupt-parent = <&r_pio>;
+		interrupts = <0 12 IRQ_TYPE_EDGE_FALLING>; /* PL12 */
+		wakeup-source;
+
+		i2c {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			charger at 75 {
+				compatible = "injoinic,ip5209";
+				reg = <0x75>;
+			};
+		};
+	};
 };
 
 &lradc {
-- 
2.35.1