linux-kernel - [PATCH] arm64: dts: meson: add audio playback to P212

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Message-Id: <20220113044546.16856-1-christianshewitt@gmail.com>
Date:   Thu, 13 Jan 2022 04:45:46 +0000
From:   Christian Hewitt <christianshewitt@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...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] arm64: dts: meson: add audio playback to P212

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
---
The P212 dts is widely used with Android box devices that follow the
reference design. The real P212 development board probably has many
more audio capabilities, but as a minimum we can enable HDMI output
and help box users too.

 .../boot/dts/amlogic/meson-gxl-s905x-p212.dts | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts
index 2602940c2077..a39830379c74 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts
@@ -7,6 +7,7 @@
 /dts-v1/;
 
 #include "meson-gxl-s905x-p212.dtsi"
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "amlogic,p212", "amlogic,s905x", "amlogic,meson-gxl";
@@ -32,6 +33,45 @@
 			};
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "S905X-P212";
+		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_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &cec_AO {
-- 
2.17.1