commit 4f4db49e9fc5a3c7b7db1b87f9c815e376a05314
Author: Zhaofeng Li <hello@zhaofeng.li>
Date:   Wed Jan 12 21:52:18 2022 -0800

    arm64: dts: rk3399-pinephone-pro: Add keyboard accessory

    The pogo pins are connected to i2c5.

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index e6c738e02..873d70bc6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -6,6 +6,7 @@

 /dts-v1/;
 #include <dt-bindings/input/gpio-keys.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/input/linux-event-codes.h>
 #include <dt-bindings/usb/pd.h>
 #include <dt-bindings/leds/common.h>
@@ -981,6 +982,109 @@ ak09911: compass@c {
 	};
 };

+&i2c5 {
+	clock-frequency = <400000>;
+	i2c-scl-rising-time-ns = <450>;
+	i2c-scl-falling-time-ns = <15>;
+	status = "okay";
+
+	keyboard@15 {
+		compatible = "pine64,kb151";
+		reg = <0x15>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <RK_PA0 IRQ_TYPE_EDGE_FALLING>; /* FIXME */
+		pinctrl-names = "default";
+		pinctrl-0 = <&pogo_int>;
+		keypad,num-rows = <12>;
+		keypad,num-columns = <12>;
+		linux,keymap = <MATRIX_KEY(0,  0, KEY_ESC)
+				MATRIX_KEY(0,  1, KEY_1)
+				MATRIX_KEY(0,  2, KEY_2)
+				MATRIX_KEY(0,  3, KEY_3)
+				MATRIX_KEY(0,  4, KEY_4)
+				MATRIX_KEY(0,  5, KEY_5)
+				MATRIX_KEY(0,  6, KEY_6)
+				MATRIX_KEY(0,  7, KEY_7)
+				MATRIX_KEY(0,  8, KEY_8)
+				MATRIX_KEY(0,  9, KEY_9)
+				MATRIX_KEY(0, 10, KEY_0)
+				MATRIX_KEY(0, 11, KEY_BACKSPACE)
+				MATRIX_KEY(1,  0, KEY_TAB)
+				MATRIX_KEY(1,  1, KEY_Q)
+				MATRIX_KEY(1,  2, KEY_W)
+				MATRIX_KEY(1,  3, KEY_E)
+				MATRIX_KEY(1,  4, KEY_R)
+				MATRIX_KEY(1,  5, KEY_T)
+				MATRIX_KEY(1,  6, KEY_Y)
+				MATRIX_KEY(1,  7, KEY_U)
+				MATRIX_KEY(1,  8, KEY_I)
+				MATRIX_KEY(1,  9, KEY_O)
+				MATRIX_KEY(1, 10, KEY_P)
+				MATRIX_KEY(1, 11, KEY_ENTER)
+				MATRIX_KEY(2,  0, KEY_LEFTMETA)
+				MATRIX_KEY(2,  1, KEY_A)
+				MATRIX_KEY(2,  2, KEY_S)
+				MATRIX_KEY(2,  3, KEY_D)
+				MATRIX_KEY(2,  4, KEY_F)
+				MATRIX_KEY(2,  5, KEY_G)
+				MATRIX_KEY(2,  6, KEY_H)
+				MATRIX_KEY(2,  7, KEY_J)
+				MATRIX_KEY(2,  8, KEY_K)
+				MATRIX_KEY(2,  9, KEY_L)
+				MATRIX_KEY(2, 10, KEY_SEMICOLON)
+				MATRIX_KEY(3,  0, KEY_LEFTSHIFT)
+				MATRIX_KEY(3,  1, KEY_Z)
+				MATRIX_KEY(3,  2, KEY_X)
+				MATRIX_KEY(3,  3, KEY_C)
+				MATRIX_KEY(3,  4, KEY_V)
+				MATRIX_KEY(3,  5, KEY_B)
+				MATRIX_KEY(3,  6, KEY_N)
+				MATRIX_KEY(3,  7, KEY_M)
+				MATRIX_KEY(3,  8, KEY_COMMA)
+				MATRIX_KEY(3,  9, KEY_DOT)
+				MATRIX_KEY(3, 10, KEY_SLASH)
+				MATRIX_KEY(4,  1, KEY_LEFTCTRL)
+				MATRIX_KEY(4,  4, KEY_SPACE)
+				MATRIX_KEY(4,  6, KEY_APOSTROPHE)
+				MATRIX_KEY(4,  8, KEY_RIGHTBRACE)
+				MATRIX_KEY(4,  9, KEY_LEFTBRACE)
+				MATRIX_KEY(5,  2, KEY_FN)
+				MATRIX_KEY(5,  3, KEY_LEFTALT)
+				MATRIX_KEY(5,  5, KEY_RIGHTALT)
+
+				/* FN layer */
+				MATRIX_KEY(6,  1, KEY_BACKSLASH)
+				MATRIX_KEY(6,  2, KEY_BACKSLASH)
+				MATRIX_KEY(6,  3, KEY_DOLLAR)
+				MATRIX_KEY(6,  4, KEY_EURO)
+				MATRIX_KEY(6,  5, KEY_GRAVE)
+				MATRIX_KEY(6,  6, KEY_GRAVE)
+				MATRIX_KEY(6,  7, KEY_MINUS)
+				MATRIX_KEY(6,  8, KEY_EQUAL)
+				MATRIX_KEY(6,  9, KEY_MINUS)
+				MATRIX_KEY(6, 10, KEY_EQUAL)
+				MATRIX_KEY(6, 11, KEY_DELETE)
+
+				MATRIX_KEY(8,  0, KEY_SYSRQ)
+				MATRIX_KEY(8, 10, KEY_INSERT)
+
+				MATRIX_KEY(9,  0, KEY_LEFTSHIFT)
+				MATRIX_KEY(9,  8, KEY_HOME)
+				MATRIX_KEY(9,  9, KEY_UP)
+				MATRIX_KEY(9, 10, KEY_END)
+
+				MATRIX_KEY(10, 1, KEY_LEFTCTRL)
+				MATRIX_KEY(10, 6, KEY_LEFT)
+				MATRIX_KEY(10, 8, KEY_RIGHT)
+				MATRIX_KEY(10, 9, KEY_DOWN)
+
+				MATRIX_KEY(11, 2, KEY_FN)
+				MATRIX_KEY(11, 3, KEY_LEFTALT)
+				MATRIX_KEY(11, 5, KEY_RIGHTALT)>;
+		wakeup-source;
+	};
+};
+
 &i2s0 {
 	rockchip,playback-channels = <2>;
 	rockchip,capture-channels = <2>;
@@ -1193,6 +1297,12 @@ spk_en: spk-en {
 			rockchip,pins = <0 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	keyboard {
+		pogo_int: pogo-int {
+			rockchip,pins = <3 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };

 &pwm0 {