linux-kernel - [PATCH v3 4/4] [DO NOT MERGE] arm64: dts: allwinner: pinephone: Add keyboard

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Message-Id: <20220424160458.60370-5-samuel@sholland.org>
Date:   Sun, 24 Apr 2022 11:04:57 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>, Ondrej Jirman <x@....cz>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v3 4/4] [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>
---

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@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 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			charger@75 {
+				compatible = "injoinic,ip5209";
+				reg = <0x75>;
+			};
+		};
+	};
 };
 
 &lradc {
-- 
2.35.1