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// SPDX-License-Identifier: GPL-2.0
/*
* Device Tree Source for the White Hawk board with ARD-AUDIO-DA7212 Board
*
* You can find and buy "ARD-AUDIO-DA7212" at Digi-Key
*
* https://www.digikey.jp/en/products/detail/ARD-AUDIO-DA7212/1564-1021-ND/5456357
*
* Copyright (C) 2022 Renesas Electronics Corp.
*
*
* [Connection]
*
* White Hawk ARD-AUDIO-DA7212
* +----------------------------+
* |CPU board |
* | |
* |CN40 (IO PIN HEADER) |
* | AUDIO_CLKIN_V pin1 |<--\ +---------------+
* |(*) GP1_25/SL_SW2_V pin2 |<--/ |J2 |
* | AUDIO_CLKOUT_V pin5 |<----->| pin7 MCLK |
* | SSI_SCK_V pin9 |<----->| pin1 BCLK |
* | SSI_WS_V pin13 |<----->| pin3 WCLK |
* | SSI_SD_V pin15 |<----->| pin5 DATIN | (@)
* | | \-->| pin15 DATOUT | [CAPTURE]
* +----------------------------+ +---------------+
* +----------------------------+
* |Breakout board |
* | | +---------------+
* |CN34 (I2C CN) | |J1 |
* | I2C0_SCL pin3 |<----->| pin20 SCL |
* | I2C0_SDA pin5 |<----->| pin18 SDA |
* | | +---------------+
* | | +-----------------------+
* |CN4 (Power) | |J7 |
* | 3v3 (v) pin9 |<----->| pin4 / pin8 3.3v |
* | GND (v) pin3 / pin4 |<----->| pin12 / pin14 GND |
* +----------------------------+ +-----------------------+
* (*) GP1_25/SL_SW2_V is used as TPU
* (@) Connect to pin5 (DATIN = playback) or pin15 (DATOUT = capture)
* (v) These are just sample pins. You can find many 3v3 / GND pins on
* White Hawk board, not only CN4. You can use other pins for it.
*
* [How to enable]
*
* You need these configs
*
* CONFIG_PWM
* CONFIG_PWM_RENESAS_TPU
* CONFIG_COMMON_CLK_PWM
* CONFIG_SND_SOC_DA7213
*
* [How to use]
*
* 44.1kHz groups sound is available by default.
* You need to update audio_clkin settings to switch to 48kHz groups sound.
* see
* [(C) clock]
*
* You can use capture if you change the settings
* see
* [CAPTURE]
*
* You need to setup Headphone
*
* > amixer set "Headphone" 40%
* > amixer set "Headphone" on
* > amixer set "Mixout Left DAC Left" on
* > amixer set "Mixout Right DAC Right" on
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
&{/} {
sound_card: sound {
compatible = "audio-graph-card";
label = "rcar-sound";
dais = <&rsnd_port>; /* DA7212 Audio Codec */
};
tpu_clk: tpu-clk {
compatible = "pwm-clock";
#clock-cells = <0>;
/* 44.1kHz groups [(C) clock] */
clock-frequency = <11289600>;
pwms = <&tpu 0 88 0>; /* 1000000000 / 88 =~ 11289600 */
/* 48 kHz groups [(C) clock] */
// clock-frequency = <12288000>;
// pwms = <&tpu 0 81 0>; /* 1000000000 / 81 =~ 12288000 */
};
};
&pfc {
sound_pins: sound {
groups = "ssi_ctrl", "ssi_data";
function = "ssi";
};
sound_clk_pins: sound-clk {
groups = "audio_clkin", "audio_clkout";
function = "audio_clk";
};
tpu0_pins: tpu0 {
groups = "tpu_to0_a";
function = "tpu";
};
};
&tpu {
pinctrl-0 = <&tpu0_pins>;
pinctrl-names = "default";
status = "okay";
};
&i2c0 {
#address-cells = <1>;
#size-cells = <0>;
codec@1a {
compatible = "dlg,da7212";
#sound-dai-cells = <0>;
reg = <0x1a>;
clocks = <&rcar_sound>;
clock-names = "mclk";
dlg,micbias1-lvl = <2500>;
dlg,micbias2-lvl = <2500>;
dlg,dmic-data-sel = "lrise_rfall";
dlg,dmic-samplephase = "between_clkedge";
dlg,dmic-clkrate = <3000000>;
VDDA-supply = <®_1p8v>;
VDDMIC-supply = <®_3p3v>;
VDDIO-supply = <®_3p3v>;
port {
da7212_endpoint: endpoint {
remote-endpoint = <&rsnd_endpoint>;
};
};
};
};
&rcar_sound {
pinctrl-0 = <&sound_clk_pins>, <&sound_pins>;
pinctrl-names = "default";
/* audio_clkout */
clock-frequency = <5644800>; /* 44.1kHz groups [(C) clock] */
// clock-frequency = <6144000>; /* 48 kHz groups [(C) clock] */
status = "okay";
/* Update <clkin> to <tpu_clk> */
clocks = <&cpg CPG_MOD 2926>, <&cpg CPG_MOD 2927>, <&tpu_clk>;
ports {
rsnd_port: port {
rsnd_endpoint: endpoint {
remote-endpoint = <&da7212_endpoint>;
dai-format = "i2s";
bitclock-master = <&rsnd_endpoint>;
frame-master = <&rsnd_endpoint>;
/* Mutually exclusive with 'capture' */
playback = <&ssi0>;
/* [CAPTURE] */
/* capture = <&ssi0>; */
};
};
};
};
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