@@ -5,6 +5,25 @@
* Copyright (C) 2023 Renesas Electronics Corp.
* Copyright (C) 2024 Glider bv
*/
+/*
+ * [How to use Sound]
+ *
+ * Because R-Car V4M has only 1 SSI, it can't handle both Playback/Capture
+ * in the same time. You need to switch the direction which is controlled
+ * by GP0_01 pin via amixer.
+ *
+ * Playback (CN9500)
+ * > amixer set "MUX" "Playback" // for GP0_01
+ * > amixer set "DAC 1" 85%
+ * > aplay xxx.wav
+ *
+ * Capture (CN9501)
+ * > amixer set "MUX" "Capture" // for GP0_01
+ * > amixer set "Mic 1" 80%
+ * > amixer set "ADC 1" on
+ * > amixer set 'ADC 1' 80%
+ * > arecord xxx hoge.wav
+ */
/dts-v1/;
@@ -59,6 +78,24 @@ reg_3p3v: regulator-3p3v {
regulator-boot-on;
regulator-always-on;
};
+
+ sound_mux: mux {
+ compatible = "simple-audio-mux";
+ mux-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+ state-labels = "Playback", "Capture";
+ };
+
+ sound_card: sound {
+ compatible = "audio-graph-card2";
+ label = "rcar-sound";
+ aux-devs = <&sound_mux>; // for GP0_01
+
+ links = <&rsnd_port>; /* AK4619 Audio Codec */
+ };
+};
+
+&audio_clkin {
+ clock-frequency = <24576000>;
};
&avb0 {
@@ -87,6 +124,15 @@ &extalr_clk {
clock-frequency = <32768>;
};
+&gpio1 {
+ audio-power-hog {
+ gpio-hog;
+ gpios = <8 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "Audio-Power";
+ };
+};
+
&hscif0 {
pinctrl-0 = <&hscif0_pins>;
pinctrl-names = "default";
@@ -139,6 +185,29 @@ eeprom@53 {
};
};
+&i2c3 {
+ pinctrl-0 = <&i2c3_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ ak4619@10 {
+ compatible = "asahi-kasei,ak4619";
+ reg = <0x10>;
+
+ clocks = <&rcar_sound>;
+ clock-names = "mclk";
+
+ #sound-dai-cells = <0>;
+ port {
+ ak4619_endpoint: endpoint {
+ remote-endpoint = <&rsnd_endpoint>;
+ };
+ };
+ };
+};
+
&mmc0 {
pinctrl-0 = <&mmc_pins>;
pinctrl-1 = <&mmc_pins>;
@@ -193,6 +262,11 @@ i2c0_pins: i2c0 {
function = "i2c0";
};
+ i2c3_pins: i2c3 {
+ groups = "i2c3";
+ function = "i2c3";
+ };
+
mmc_pins: mmc {
groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
function = "mmc";
@@ -213,6 +287,40 @@ scif_clk2_pins: scif-clk2 {
groups = "scif_clk2";
function = "scif_clk2";
};
+
+ sound_pins: sound {
+ groups = "ssi_ctrl", "ssi_data";
+ function = "ssi";
+ };
+
+ sound_clk_pins: sound_clk {
+ groups = "audio_clkin", "audio_clkout";
+ function = "audio_clk";
+ };
+};
+
+&rcar_sound {
+ pinctrl-0 = <&sound_clk_pins>, <&sound_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ /* audio_clkout */
+ clock-frequency = <12288000>;
+
+ ports {
+ rsnd_port: port {
+ rsnd_endpoint: endpoint {
+ remote-endpoint = <&ak4619_endpoint>;
+ bitclock-master;
+ frame-master;
+
+ /* see above [How to use Sound] */
+ playback = <&ssi0>;
+ capture = <&ssi0>;
+ };
+ };
+ };
};
&rpc {
Because V4M supports only 1 SSI, it can't use Playback/Capture in the same time. It select Playback as default. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> --- .../dts/renesas/r8a779h0-gray-hawk-single.dts | 108 ++++++++++++++++++ 1 file changed, 108 insertions(+)