This patch adds the devicetree documentation for the ADI AXI-SPDIF audio controller. The controller has: * One set of memory mapped register * Two clocks, one for the memory mapped register interface, one used as the audio reference clock * A DMA interface for the transmit data
Signed-off-by: Lars-Peter Clausen <[email protected]> Cc: Rob Herring <[email protected]> Cc: Pawel Moll <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Stephen Warren <[email protected]> Cc: Ian Campbell <[email protected]> Cc: [email protected] --- .../devicetree/bindings/sound/adi,axi-spdif-tx.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/adi,axi-spdif-tx.txt diff --git a/Documentation/devicetree/bindings/sound/adi,axi-spdif-tx.txt b/Documentation/devicetree/bindings/sound/adi,axi-spdif-tx.txt new file mode 100644 index 0000000..489ba9be --- /dev/null +++ b/Documentation/devicetree/bindings/sound/adi,axi-spdif-tx.txt @@ -0,0 +1,29 @@ +ADI AXI-SPDIF controller + +Required properties: + - compatible : Must be "adi,axi-spdif-1.00.a" + - reg : Must contain SPDIF registers location and length + - clocks : Clock specifier providing a handle to the controller's clocks. The + controller expects two clocks, the clock used for the AXI interface and the + clock used as the sample rate reference clock. + - clock-names: "axi" for the clock to the AXI interface, "ref" for the sample + rate reference clock. + - dma : Phandle to the dma channels for the transmit DMA. + - dma-names : Must be "tx" + +For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties +please check: + * resource-names.txt + * clock/clock-bindings.txt + * dma/dma.txt + +Example: + + spdif: spdif@0x77400000 { + compatible = "adi,axi-spdif-tx-1.00.a"; + reg = <0x77600000 0x1000>; + clocks = <&clk 15 &audio_clock>; + clock-names = "axi", "ref"; + dmas = <&ps7_dma 0>; + dma-names = "tx"; + }; -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
