arm64: dts: mediatek: mt6795-xperia-m5: Add Sensortek STK3310 Proximity

Add the STK3310 Proximity sensor and its pins.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230327083647.22017-17-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Author: AngeloGioacchino Del Regno

arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts

@@ -99,6 +99,14 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c3_pins>;
 	status = "okay";
+
+	proximity@48 {
+		compatible = "sensortek,stk3310";
+		reg = <0x48>;
+		interrupts-extended = <&pio 8 IRQ_TYPE_EDGE_FALLING>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&proximity_pins>;
+	};
 };
 
 &pio {
@@ -115,6 +123,14 @@
 		};
 	};
 
+	proximity_pins: proximity-pins {
+		pins-irq {
+			pinmux = <PINMUX_GPIO8__FUNC_GPIO8>;
+			bias-pull-up;
+			input-enable;
+		};
+	};
+
 	i2c0_pins: i2c0-pins {
 		pins-bus {
 			pinmux = <PINMUX_GPIO45__FUNC_SDA0>,