arch/arm64/boot/dts/renesas/ulcb-kf-audio-graph-card2-mix+split.dtsi

// SPDX-License-Identifier: GPL-2.0
/*
 * Device Tree for ULCB + Kingfisher + Audio Graph Card2 (MIX + TDM Split)
 *
 * Copyright (C) 2022 Renesas Electronics Corp.
 */

/*
 * Note:
 * The HDMI output is ignored due to the limited number of subdevices
 *
 *	(A) CPU0 (2ch) <----> (2ch) (X)	ak4613	   (MIX-0)
 *	(B) CPU1 (2ch)  --/			   (MIX-1)
 *	(C) CPU3 (2ch)  ----> (8ch) (Y)	PCM3168A-p (TDM-0 : 0,1ch)
 *	(D) CPU2 (2ch)  --/			   (TDM-1 : 2,3ch)
 *	(E) CPU4 (2ch)  --/			   (TDM-2 : 4,5ch)
 *	(F) CPU5 (2ch)  --/			   (TDM-3 : 6,7ch)
 *	(G) CPU6 (6ch) <----  (6ch) (Z)	PCM3168A-c
 *
 *	(A) aplay   -D plughw:0,0 xxx.wav (MIX-0)
 *	(B) aplay   -D plughw:0,1 xxx.wav (MIX-1)
 *	(C) aplay   -D plughw:1,0 xxx.wav (TDM-0)
 *	(D) aplay   -D plughw:1,1 xxx.wav (TDM-1)
 *	(E) aplay   -D plughw:1,2 xxx.wav (TDM-2)
 *	(F) aplay   -D plughw:1,3 xxx.wav (TDM-3)
 *
 *	(A) arecord -D plughw:0,0 xxx.wav
 *	(G) arecord -D plughw:1,4 xxx.wav
 */
/ {
	sound_card_kf: expand-sound {
		compatible = "audio-graph-card2";
		label = "snd-kf-split";

		routing = "pcm3168a Playback", "DAI2 Playback",
			  "pcm3168a Playback", "DAI3 Playback",
			  "pcm3168a Playback", "DAI4 Playback",
			  "pcm3168a Playback", "DAI5 Playback",
			  "DAI6 Capture",      "pcm3168a Capture";

		links = <&fe_c		/* (C) CPU2	  */
			 &fe_d		/* (D) CPU3	  */
			 &fe_e		/* (E) CPU4	  */
			 &fe_f		/* (F) CPU5	  */
			 &rsnd_g	/* (G) CPU6	  */
			 &be_y		/* (Y) PCM3168A-p */
		>;

		dpcm {
			#address-cells = <1>;
			#size-cells = <0>;

			ports@0 {
				#address-cells = <1>;
				#size-cells = <0>;
				reg = <0>;

				/*
				 * FE
				 *
				 * (C) CPU2
				 * (D) CPU3
				 * (E) CPU4
				 * (F) CPU5
				 */
			fe_c:	port@2 { reg = <2>; fe_c_ep: endpoint { remote-endpoint = <&rsnd_c_ep>; }; };
			fe_d:	port@3 { reg = <3>; fe_d_ep: endpoint { remote-endpoint = <&rsnd_d_ep>; }; };
			fe_e:	port@4 { reg = <4>; fe_e_ep: endpoint { remote-endpoint = <&rsnd_e_ep>; }; };
			fe_f:	port@5 { reg = <5>; fe_f_ep: endpoint { remote-endpoint = <&rsnd_f_ep>; }; };
			};

			ports@1 {
				reg = <1>;
				/*
				 * BE
				 *
				 * (Y) PCM3168A-p
				 */
			be_y:	port { be_y_ep: endpoint { remote-endpoint = <&pcm3168a_y_ep>; }; };
			};
		};
	};
};

&pcm3168a {
	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		mclk-fs = <512>;
		prefix = "pcm3168a";

		/*
		 * (Y) PCM3168A-p
		 */
		port@0 {
			reg = <0>;
			convert-channels = <8>; /* to 8ch TDM */
			pcm3168a_y_ep: endpoint {
				remote-endpoint = <&be_y_ep>;
				clocks = <&clksndsel>;
			};
		};
		/*
		 * (Z) PCM3168A-c
		 */
		port@1 {
			reg = <1>;
			pcm3168a_z_ep: endpoint {
				remote-endpoint = <&rsnd_g_ep>;
				clocks = <&clksndsel>;
			};
		};
	};
};

&rcar_sound {
	ports@1 {
		#address-cells = <1>;
		#size-cells = <0>;
		reg = <1>;

		/*
		 * (C) CPU2
		 */
		port@2 {
			reg = <2>;
			rsnd_c_ep: endpoint {
				remote-endpoint = <&fe_c_ep>;
				bitclock-master;
				frame-master;
				playback = <&ssiu30 &ssi3>;
			};
		};
		/*
		 * (D) CPU3
		 */
		port@3 {
			reg = <3>;
			rsnd_d_ep: endpoint {
				remote-endpoint = <&fe_d_ep>;
				bitclock-master;
				frame-master;
				playback = <&ssiu31 &ssi3>;
			};
		};
		/*
		 * (E) CPU4
		 */
		port@4 {
			reg = <4>;
			rsnd_e_ep: endpoint {
				remote-endpoint = <&fe_e_ep>;
				bitclock-master;
				frame-master;
				playback = <&ssiu32 &ssi3>;
			};
		};
		/*
		 * (F) CPU5
		 */
		port@5 {
			reg = <5>;
			rsnd_f_ep: endpoint {
				remote-endpoint = <&fe_f_ep>;
				bitclock-master;
				frame-master;
				playback = <&ssiu33 &ssi3>;
			};
		};
		/*
		 * (G) CPU6
		 */
		rsnd_g: port@6 {
			reg = <6>;
			rsnd_g_ep: endpoint {
				remote-endpoint = <&pcm3168a_z_ep>;
				bitclock-master;
				frame-master;
				capture = <&ssi4>;
			};
		};
	};
};