ARM: dts: stm32: add spdifrx support on stm32mp157c

This patch adds support of STM32 SPDIFRX on
stm32mp157c.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157c.dtsi

@@ -379,6 +379,19 @@ spi3: spi@4000c000 {
 			status = "disabled";
 		};
 
+		spdifrx: audio-controller@4000d000 {
+			compatible = "st,stm32h7-spdifrx";
+			#sound-dai-cells = <0>;
+			reg = <0x4000d000 0x400>;
+			clocks = <&rcc SPDIF_K>;
+			clock-names = "kclk";
+			interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&dmamux1 93 0x400 0x01>,
+			       <&dmamux1 94 0x400 0x01>;
+			dma-names = "rx", "rx-ctrl";
+			status = "disabled";
+		};
+
 		usart2: serial@4000e000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x4000e000 0x400>;