arm64: dts: rockchip: add the internal audio codec on rk3308

The RK3308 has a built-in audio codec that connects internally to i2s_8ch_2
or i2s_8ch_3.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/r/20240305-rk3308-audio-codec-v4-7-312acdbe628f@bootlin.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3308.dtsi

@@ -803,6 +803,20 @@ cru: clock-controller@ff500000 {
 		assigned-clock-rates = <32768>;
 	};
 
+	codec: codec@ff560000 {
+		compatible = "rockchip,rk3308-codec";
+		reg = <0x0 0xff560000 0x0 0x10000>;
+		rockchip,grf = <&grf>;
+		clock-names = "mclk_tx", "mclk_rx", "hclk";
+		clocks = <&cru SCLK_I2S2_8CH_TX_OUT>,
+			 <&cru SCLK_I2S2_8CH_RX_OUT>,
+			 <&cru PCLK_ACODEC>;
+		reset-names = "codec-reset";
+		resets = <&cru SRST_ACODEC_P>;
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	gic: interrupt-controller@ff580000 {
 		compatible = "arm,gic-400";
 		reg = <0x0 0xff581000 0x0 0x1000>,