45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
|
* 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,rk3066-spdif"
|
||
|
|
- "rockchip,rk3188-spdif"
|
||
|
|
- "rockchip,rk3288-spdif"
|
||
|
|
- "rockchip,rk3366-spdif"
|
||
|
|
- "rockchip,rk3368-spdif"
|
||
|
|
- "rockchip,rk3399-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>;
|
||
|
|
};
|