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

Only one pinmuxing is available so set it as default.

Signed-off-by: Clément Péron <peron.c...@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 38 ++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi 
b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index f4ea596c82ce..e0ca23704719 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
@@ -273,6 +291,11 @@
                                bias-pull-up;
                        };
 
+                       spdif_tx_pin: spdif-tx-pin {
+                               pins = "PH7";
+                               function = "spdif";
+                       };
+
                        uart0_ph_pins: uart0-ph-pins {
                                pins = "PH0", "PH1";
                                function = "uart0";
@@ -402,6 +425,21 @@
                        };
                };
 
+               spdif: spdif@5093000 {
+                       #sound-dai-cells = <0>;
+                       compatible = "allwinner,sun50i-h6-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";
-- 
2.20.1

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