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Commit 994aadf0 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Simon Horman
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arm64: renesas: salvator-x: Sound SSI PIO support 



This patch adds PIO sound support for Salvator-X board.
It can use 44.1kHz base sound only at this point, since 48kHz base
sound needs CS2000, but it is not yet upstreamed.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent b9dd9450

arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

+76 −0
Original line number Diff line number Diff line
@@ -31,6 +31,28 @@ 
		/* first 128MB is reserved for secure area. */

		reg = <0x0 0x48000000 0x0 0x38000000>;

	};



	x12_clk: x12_clk {

		compatible = "fixed-clock";

		#clock-cells = <0>;

		clock-frequency = <24576000>;

	};



	rsnd_ak4613: sound {

		compatible = "simple-audio-card";



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

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

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



		sndcpu: simple-audio-card,cpu {

			sound-dai = <&rcar_sound>;

		};



		sndcodec: simple-audio-card,codec {

			sound-dai = <&ak4613>;

		};

	};

};



&extal_clk {
@@ -56,6 +78,17 @@ 
		renesas,groups = "avb_mdc";

		renesas,function = "avb";

	};



	sound_pins: sound {

		renesas,groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";

		renesas,function = "ssi";

	};



	sound_clk_pins: sound_clk {

		renesas,groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",

				 "audio_clkout_a", "audio_clkout3_a";

		renesas,function = "audio_clk";

	};

};



&scif1 {
@@ -77,6 +110,49 @@ 
	pinctrl-names = "default";



	status = "okay";



	clock-frequency = <100000>;



	ak4613: codec@10 {

		compatible = "asahi-kasei,ak4613";

		#sound-dai-cells = <0>;

		reg = <0x10>;

		clocks = <&rcar_sound 3>;

	};

};



&rcar_sound {

	pinctrl-0 = <&sound_pins &sound_clk_pins>;

	pinctrl-names = "default";



	/* Single DAI */

	#sound-dai-cells = <0>;



	/* audio_clkout0/1/2/3 */

	#clock-cells = <1>;

	clock-frequency = <11289600>;



	status = "okay";



	rcar_sound,dai {

		dai0 {

			playback = <&ssi0>;

			capture  = <&ssi1>;

		};

	};

};



&ssi0 {

	pio-transfer;

};



&ssi1 {

	pio-transfer;

	shared-pin;

};



&audio_clk_a {

	clock-frequency = <22579200>;

};



&avb {