@@ -67,6 +67,7 @@ dtb-$(CONFIG_ARCH_R8A779A0) += r8a779a0-falcon.dtb
dtb-$(CONFIG_ARCH_R8A779F0) += r8a779f0-spider.dtb
dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g0-white-hawk.dtb
+dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g0-white-hawk-ard-audio-da7212.dtbo
dtb-$(CONFIG_ARCH_R8A77951) += r8a779m1-salvator-xs.dtb
dtb-$(CONFIG_ARCH_R8A77951) += r8a779m1-ulcb.dtb
new file mode 100644
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the White Hawk boards 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 in default.
+ * You need update audio_clkin settings to switch to 48kHz groups sound if you want
+ * 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_port0>; /* 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";
+
+ /* Single DAI */
+ #sound-dai-cells = <0>;
+
+ /* audio_clkout */
+ #clock-cells = <0>;
+ 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_port0: port {
+ rsnd_endpoint: endpoint {
+ remote-endpoint = <&da7212_endpoint>;
+
+ dai-format = "i2s";
+ bitclock-master = <&rsnd_endpoint>;
+ frame-master = <&rsnd_endpoint>;
+
+ /* Please use exclusively to the 'capture' */
+ playback = <&ssi0>;
+ /* [CAPTURE] */
+ /* capture = <&ssi0>; */
+ };
+ };
+ };
+};