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-STMicroelectronics STM32 S/PDIF receiver (SPDIFRX).
-
-The SPDIFRX peripheral, is designed to receive an S/PDIF flow compliant with
-IEC-60958 and IEC-61937.
-
-Required properties:
- - compatible: should be "st,stm32h7-spdifrx"
- - reg: cpu DAI IP base address and size
- - clocks: must contain an entry for kclk (used as S/PDIF signal reference)
- - clock-names: must contain "kclk"
- - interrupts: cpu DAI interrupt line
- - dmas: DMA specifiers for audio data DMA and iec control flow DMA
- See STM32 DMA bindings, Documentation/devicetree/bindings/dma/st,stm32-dma.yaml
- - dma-names: two dmas have to be defined, "rx" and "rx-ctrl"
-
-Optional properties:
- - resets: Reference to a reset controller asserting the SPDIFRX
-
-The device node should contain one 'port' child node with one child 'endpoint'
-node, according to the bindings defined in Documentation/devicetree/bindings/
-graph.txt.
-
-Example:
-spdifrx: spdifrx@40004000 {
- compatible = "st,stm32h7-spdifrx";
- reg = <0x40004000 0x400>;
- clocks = <&rcc SPDIFRX_CK>;
- clock-names = "kclk";
- interrupts = <97>;
- dmas = <&dmamux1 2 93 0x400 0x0>,
- <&dmamux1 3 94 0x400 0x0>;
- dma-names = "rx", "rx-ctrl";
- pinctrl-0 = <&spdifrx_pins>;
- pinctrl-names = "default";
-
- spdifrx_port: port {
- cpu_endpoint: endpoint {
- remote-endpoint = <&codec_endpoint>;
- };
- };
-};
-
-spdif_in: spdif-in {
- compatible = "linux,spdif-dir";
-
- codec_port: port {
- codec_endpoint: endpoint {
- remote-endpoint = <&cpu_endpoint>;
- };
- };
-};
-
-soundcard {
- compatible = "audio-graph-card";
- dais = <&spdifrx_port>;
-};