[PATCH 2/4] arm64: dts: allwinner: Add SPDIF node for Allwinner H6

["Clément Péron" <peron.clem-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

The Allwinner H6 has a SPDIF controller called OWA (One Wire Audio).

Add this node in the SoC device-tree and as they are only one pinmuxing
available set it as default.

Signed-off-by: Clément Péron <peron.clem-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 39 ++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index ad2077830f73..5e850b359be5 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -83,6 +83,24 @@
 		method = "smc";
 	};
 
+	sound_spdif {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "On-board SPDIF";
+
+		simple-audio-card,cpu {
+			sound-dai = <&spdif>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&spdif_out>;
+		};
+	};
+
+	spdif_out: spdif-out {
+		#sound-dai-cells = <0>;
+		compatible = "linux,spdif-dit";
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13
@@ -264,6 +282,11 @@
 				bias-pull-up;
 			};
 
+			spdif_tx_pin: spdif-tx-pin {
+				pins = "PH7";
+				function = "spdif";
+			};
+
 			uart0_ph_pins: uart0-ph-pins {
 				pins = "PH0", "PH1";
 				function = "uart0";
@@ -391,6 +414,22 @@
 			};
 		};
 
+		spdif: spdif@5093000 {
+			#sound-dai-cells = <0>;
+			compatible = "allwinner,sun50i-h6-spdif",
+				     "allwinner,sun8i-h3-spdif";
+			reg = <0x05093000 0x400>;
+			interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
+			clock-names = "apb", "spdif";
+			resets = <&ccu RST_BUS_SPDIF>;
+			dmas = <&dma 2>;
+			dma-names = "tx";
+			pinctrl-names = "default";
+			pinctrl-0 = <&spdif_tx_pin>;
+			status = "disabled";
+		};
+
 		usb2otg: usb@5100000 {
 			compatible = "allwinner,sun50i-h6-musb",
 				     "allwinner,sun8i-a33-musb";
-- 
2.17.1

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