linux-kernel - [PATCH 12/12] arm64: dts: meson: add audio playback to wetek-play2

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Message-Id: <20200718065739.7802-13-christianshewitt@gmail.com>
Date:   Sat, 18 Jul 2020 06:57:39 +0000
From:   Christian Hewitt <christianshewitt@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Christian Hewitt <christianshewitt@...il.com>
Subject: [PATCH 12/12] arm64: dts: meson: add audio playback to wetek-play2

Add initial support limited to HDMI i2s and SPDIF (LPCM).

Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
---
 .../dts/amlogic/meson-gxbb-wetek-play2.dts    | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
index 2ab8a3d10079..f2562c7de67c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
@@ -8,11 +8,19 @@
 
 #include "meson-gxbb-wetek.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "wetek,play2", "amlogic,meson-gxbb";
 	model = "WeTek Play 2";
 
+	spdif_dit: audio-codec-0 {
+		#sound-dai-cells = <0>;
+		compatible = "linux,spdif-dit";
+		status = "okay";
+		sound-name-prefix = "DIT";
+	};
+
 	leds {
 		led-wifi {
 			label = "wetek-play:wifi-status";
@@ -39,6 +47,59 @@
 			gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>;
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-WETEK-PLAY2";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-3 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>;
+
+			codec-0 {
+				sound-dai = <&spdif_dit>;
+			};
+		};
+
+		dai-link-4 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
+	pinctrl-0 = <&spdif_out_y_pins>;
+	pinctrl-names = "default";
 };
 
 &i2c_A {
-- 
2.17.1