On Fri, Jun 16, 2017 at 03:57:31PM +0200, olivier moysan wrote:
This adds documentation of device tree bindings for the STM32 SPDIFRX interface.
Signed-off-by: olivier moysan olivier.moysan@st.com
.../devicetree/bindings/sound/st,stm32-spdifrx.txt | 56 ++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt new file mode 100644 index 0000000..33826f2 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt @@ -0,0 +1,56 @@ +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/stm32-dma.txt
- 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";
What is this? It should go.
Rob