Commit e396d610 authored by Biju Das's avatar Biju Das Committed by Geert Uytterhoeven
Browse files

arm64: dts: renesas: rzg2l-smarc: Enable audio 



Enable audio on RZ/G2L SMARC EVK by linking SSI0 with WM8978
audio CODEC.

Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20210921084605.16250-4-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent 1c8da81c

arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi

+66 −0
Original line number Diff line number Diff line
@@ -8,6 +8,19 @@ 
#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>



/*

 * SSI-WM8978

 *

 * This command is required when Playback/Capture

 *

 *	amixer cset name='Left Input Mixer L2 Switch' on

 *	amixer cset name='Right Input Mixer R2 Switch' on

 *	amixer cset name='Headphone Playback Volume' 100

 *	amixer cset name='PCM Volume' 100%

 *	amixer cset name='Input PGA Volume' 25

 *

 */



/ {

	aliases {

		serial0 = &scif0;
@@ -21,6 +34,29 @@ chosen { 
		stdout-path = "serial0:115200n8";

	};



	audio_mclock: audio_mclock {

		compatible = "fixed-clock";

		#clock-cells = <0>;

		clock-frequency = <11289600>;

	};



	snd_rzg2l: sound {

		compatible = "simple-audio-card";

		simple-audio-card,format = "i2s";

		simple-audio-card,bitclock-master = <&cpu_dai>;

		simple-audio-card,frame-master = <&cpu_dai>;

		simple-audio-card,mclk-fs = <256>;



		cpu_dai: simple-audio-card,cpu {

			sound-dai = <&ssi0>;

		};



		codec_dai: simple-audio-card,codec {

			clocks = <&audio_mclock>;

			sound-dai = <&wm8978>;

		};

	};



	usb0_vbus_otg: regulator-usb0-vbus-otg {

		compatible = "regulator-fixed";
@@ -30,6 +66,14 @@ usb0_vbus_otg: regulator-usb0-vbus-otg { 
	};

};



&audio_clk1{

	clock-frequency = <11289600>;

};



&audio_clk2{

	clock-frequency = <12288000>;

};



&ehci0 {

	dr_mode = "otg";

	status = "okay";
@@ -90,6 +134,9 @@ &phyrst { 
};



&pinctrl {

	pinctrl-0 = <&sound_clk_pins>;

	pinctrl-names = "default";



	i2c0_pins: i2c0 {

		pins = "RIIC0_SDA", "RIIC0_SCL";

		input-enable;
@@ -110,6 +157,18 @@ scif0_pins: scif0 { 
			 <RZG2L_PORT_PINMUX(38, 1, 1)>;	/* RxD */

	};



	sound_clk_pins: sound_clk {

		pins = "AUDIO_CLK1", "AUDIO_CLK2";

		input-enable;

	};



	ssi0_pins: ssi0 {

		pinmux = <RZG2L_PORT_PINMUX(45, 0, 1)>, /* BCK */

			 <RZG2L_PORT_PINMUX(45, 1, 1)>, /* RCK */

			 <RZG2L_PORT_PINMUX(45, 2, 1)>, /* TXD */

			 <RZG2L_PORT_PINMUX(45, 3, 1)>; /* RXD */

	};



	usb0_pins: usb0 {

		pinmux = <RZG2L_PORT_PINMUX(4, 0, 1)>, /* VBUS */

			 <RZG2L_PORT_PINMUX(5, 0, 1)>, /* OVC */
@@ -128,6 +187,13 @@ &scif0 { 
	status = "okay";

};



&ssi0 {

	pinctrl-0 = <&ssi0_pins>;

	pinctrl-names = "default";



	status = "okay";

};



&usb2_phy0 {

	pinctrl-0 = <&usb0_pins>;

	pinctrl-names = "default";