linux-kernel - [PATCH 5/5] [DO NOT MERGE] arm64: dts: allwinner: pinephone: Add keyboard

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Message-Id: <20220129230043.12422-6-samuel@sholland.org>
Date:   Sat, 29 Jan 2022 17:00:42 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        devicetree@...r.kernel.org, linux-i2c@...r.kernel.org,
        Wolfram Sang <wsa@...nel.org>, Ondrej Jirman <x@....cz>,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH 5/5] [DO NOT MERGE] arm64: dts: allwinner: pinephone: Add keyboard

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@...lland.org>
---

 .../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..2fa1bdf8aa63 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@68 {
 /* Connected to pogo pins (external spring based pinheader for user addons) */
 &i2c2 {
 	status = "okay";
+
+	keyboard@15 {
+		compatible = "pine64,pinephone-keyboard";
+		reg = <0x15>;
+		interrupt-parent = <&r_pio>;
+		interrupts = <0 12 IRQ_TYPE_EDGE_FALLING>; /* PL12 */
+		wakeup-source;
+
+		i2c-bus {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			charger@75 {
+				compatible = "injoinic,ip5209";
+				reg = <0x75>;
+			};
+		};
+	};
 };
 
 &lradc {
-- 
2.33.1