white-hawk-ard-audio-da7212.dtso

  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Device Tree Source for White Hawk (Single) board with ARD-AUDIO-DA7212 board
  4 *
  5 * You can find and buy "ARD-AUDIO-DA7212" at Digi-Key
  6 *
  7 *	https://www.digikey.jp/en/products/detail/ARD-AUDIO-DA7212/1564-1021-ND/5456357
  8 *
  9 * Copyright (C) 2022 Renesas Electronics Corp.
 10 *
 11 *
 12 * [Connection]
 13 *
 14 * White Hawk				ARD-AUDIO-DA7212
 15 * +----------------------------+
 16 * |CPU board			|
 17 * |				|
 18 * |CN40 (IO PIN HEADER)	|
 19 * |	AUDIO_CLKIN_V	  pin1  |<--\	+---------------+
 20 * |(*) GP1_25/SL_SW2_V	  pin2  |<--/	|J2		|
 21 * |	AUDIO_CLKOUT_V	  pin5  |<----->| pin7  MCLK	|
 22 * |	SSI_SCK_V	  pin9  |<----->| pin1  BCLK	|
 23 * |	SSI_WS_V	  pin13 |<----->| pin3  WCLK	|
 24 * |	SSI_SD_V	  pin15 |<----->| pin5  DATIN	| (@)
 25 * |				|   \-->| pin15 DATOUT	| [CAPTURE]
 26 * +----------------------------+	+---------------+
 27 * +----------------------------+
 28 * |Breakout board		|
 29 * |				|	+---------------+
 30 * |CN(30)34 (I2C CN)		|	|J1		|
 31 * |	I2C0_SCL	   pin3 |<----->| pin20 SCL	|
 32 * |	I2C0_SDA	   pin5 |<----->| pin18 SDA	|
 33 * |				|	+---------------+
 34 * |				|	+-----------------------+
 35 * |CN(300)4 (Power)	        |	|J7			|
 36 * |	3v3 (v)		   pin9 |<----->| pin4  / pin8  3.3v	|
 37 * |	GND (v)	    pin3 / pin4 |<----->| pin12 / pin14 GND	|
 38 * +----------------------------+	+-----------------------+
 39 * (*)	GP1_25/SL_SW2_V is used as TPU
 40 * (@)	Connect to pin5 (DATIN = playback) or pin15 (DATOUT = capture)
 41 * (v)	These are just sample pins. You can find many 3v3 / GND pins on
 42 *	White Hawk board, not only CN4. You can use other pins for it.
 43 *
 44 * [How to enable]
 45 *
 46 * You need these configs
 47 *
 48 *	CONFIG_PWM
 49 *	CONFIG_PWM_RENESAS_TPU
 50 *	CONFIG_COMMON_CLK_PWM
 51 *	CONFIG_SND_SOC_DA7213
 52 *
 53 * [How to use]
 54 *
 55 * 44.1kHz groups sound is available by default.
 56 * You need to update audio_clkin settings to switch to 48kHz groups sound.
 57 * see
 58 *	[(C) clock]
 59 *
 60 * You can use capture if you change the settings
 61 * see
 62 *	[CAPTURE]
 63 *
 64 * You need to setup Headphone
 65 *
 66 *	> amixer set "Headphone" 40%
 67 *	> amixer set "Headphone" on
 68 *	> amixer set "Mixout Left DAC Left" on
 69 *	> amixer set "Mixout Right DAC Right" on
 70 */
 71
 72/dts-v1/;
 73/plugin/;
 74#include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
 75
 76&{/} {
 77	sound_card: sound {
 78		compatible = "audio-graph-card";
 79		label = "rcar-sound";
 80
 81		dais = <&rsnd_port>;	/* DA7212 Audio Codec */
 82	};
 83
 84	tpu_clk: tpu-clk {
 85		compatible = "pwm-clock";
 86		#clock-cells = <0>;
 87
 88		/* 44.1kHz groups [(C) clock] */
 89		clock-frequency = <11289600>;
 90		pwms = <&tpu 0 88 0>;	/* 1000000000 / 88 =~ 11289600 */
 91
 92		/* 48  kHz groups [(C) clock] */
 93//		clock-frequency = <12288000>;
 94//		pwms = <&tpu 0 81 0>;	/* 1000000000 / 81 =~ 12288000 */
 95	};
 96
 97};
 98
 99&pfc {
100	sound_pins: sound {
101		groups = "ssi_ctrl", "ssi_data";
102		function = "ssi";
103	};
104
105	sound_clk_pins: sound-clk {
106		groups = "audio_clkin", "audio_clkout";
107		function = "audio_clk";
108	};
109
110	tpu0_pins: tpu0 {
111		groups = "tpu_to0_b";
112		function = "tpu";
113	};
114};
115
116&tpu {
117	pinctrl-0 = <&tpu0_pins>;
118	pinctrl-names = "default";
119
120	status = "okay";
121};
122
123&i2c0 {
124	#address-cells = <1>;
125	#size-cells = <0>;
126
127	codec@1a {
128		compatible = "dlg,da7212";
129
130		#sound-dai-cells = <0>;
131		reg = <0x1a>;
132
133		clocks = <&rcar_sound>;
134		clock-names = "mclk";
135
136		dlg,micbias1-lvl = <2500>;
137		dlg,micbias2-lvl = <2500>;
138		dlg,dmic-data-sel = "lrise_rfall";
139		dlg,dmic-samplephase = "between_clkedge";
140		dlg,dmic-clkrate = <3000000>;
141
142		VDDA-supply   = <&reg_1p8v>;
143		VDDMIC-supply = <&reg_3p3v>;
144		VDDIO-supply  = <&reg_3p3v>;
145
146		port {
147			da7212_endpoint: endpoint {
148				remote-endpoint = <&rsnd_endpoint>;
149			};
150		};
151	};
152};
153
154&rcar_sound {
155	pinctrl-0 = <&sound_clk_pins>, <&sound_pins>;
156	pinctrl-names = "default";
157
158	/* audio_clkout */
159	clock-frequency = <5644800>; /* 44.1kHz groups [(C) clock] */
160//	clock-frequency = <6144000>; /* 48  kHz groups [(C) clock] */
161
162	status = "okay";
163
164	/* Update <clkin> to <tpu_clk> */
165	clocks = <&cpg CPG_MOD 2926>, <&cpg CPG_MOD 2927>, <&tpu_clk>;
166
167	ports {
168		rsnd_port: port {
169			rsnd_endpoint: endpoint {
170				remote-endpoint = <&da7212_endpoint>;
171
172				dai-format = "i2s";
173				bitclock-master = <&rsnd_endpoint>;
174				frame-master = <&rsnd_endpoint>;
175
176				/* Mutually exclusive with 'capture' */
177				playback = <&ssi0>;
178				/* [CAPTURE] */
179				/* capture = <&ssi0>; */
180			};
181		};
182	};
183};