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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /Documentation/devicetree/bindings/sound/rockchip-spdif.txt | |
parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'Documentation/devicetree/bindings/sound/rockchip-spdif.txt')
-rw-r--r-- | Documentation/devicetree/bindings/sound/rockchip-spdif.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rockchip-spdif.txt b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt new file mode 100644 index 000000000..e64dbdea7 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt @@ -0,0 +1,40 @@ +* Rockchip SPDIF transceiver + +The S/PDIF audio block is a stereo transceiver that allows the +processor to receive and transmit digital audio via an coaxial cable or +a fibre cable. + +Required properties: + +- compatible: should be one of the following: + - "rockchip,rk3288-spdif", "rockchip,rk3188-spdif" or + "rockchip,rk3066-spdif" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: should contain the SPDIF interrupt. +- dmas: DMA specifiers for tx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: should be "tx" +- clocks: a list of phandle + clock-specifier pairs, one for each entry + in clock-names. +- clock-names: should contain following: + - "hclk": clock for SPDIF controller + - "mclk" : clock for SPDIF bus + +Required properties on RK3288: + - rockchip,grf: the phandle of the syscon node for the general register + file (GRF) + +Example for the rk3188 SPDIF controller: + +spdif: spdif@0x1011e000 { + compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif"; + reg = <0x1011e000 0x2000>; + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&dmac1_s 8>; + dma-names = "tx"; + clock-names = "hclk", "mclk"; + clocks = <&cru HCLK_SPDIF>, <&cru SCLK_SPDIF>; + status = "disabled"; + #sound-dai-cells = <0>; +}; |