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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
commit | d635711daa98be86d4c7fd01499c34f566b54ccb (patch) | |
tree | aa5cc3760a27c3d57146498cb82fa549547de06c /Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt | |
parent | c91265cd0efb83778f015b4d4b1129bd2cfd075e (diff) |
Linux-libre 4.6.2-gnu
Diffstat (limited to 'Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt')
-rw-r--r-- | Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt new file mode 100644 index 000000000..13503aa50 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt @@ -0,0 +1,39 @@ +Allwinner Sony/Philips Digital Interface Format (S/PDIF) Controller + +The Allwinner S/PDIF audio block is a transceiver that allows the +processor to receive and transmit digital audio via an coaxial cable or +a fibre cable. +For now only playback is supported. + +Required properties: + + - compatible : should be one of the following: + - "allwinner,sun4i-a10-spdif": for the Allwinner A10 SoC + + - reg : Offset and length of the register set for the device. + + - interrupts : Contains the spdif interrupt. + + - dmas : Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. + + - dma-names : Two dmas have to be defined, "tx" and "rx". + + - clocks : Contains an entry for each entry in clock-names. + + - clock-names : Includes the following entries: + "apb" clock for the spdif bus. + "spdif" clock for spdif controller. + +Example: + +spdif: spdif@01c21000 { + compatible = "allwinner,sun4i-a10-spdif"; + reg = <0x01c21000 0x40>; + interrupts = <13>; + clocks = <&apb0_gates 1>, <&spdif_clk>; + clock-names = "apb", "spdif"; + dmas = <&dma 0 2>, <&dma 0 2>; + dma-names = "rx", "tx"; + status = "okay"; +}; |