[PATCH 1/4] ASoC: dt-bindings: add rockchip tranceiver bindings
From: Sjoerd Simons <hidden>
Date: 2015-07-28 12:03:37
Also in:
alsa-devel, linux-rockchip, lkml
Subsystem:
open firmware and flattened device tree bindings, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Liam Girdwood, Mark Brown, Linus Torvalds
Add devicetree bindings for the spdif tranceiver found on found on rk3066, rk3188 and rk3288 SoCs Signed-off-by: Sjoerd Simons <redacted> --- .../devicetree/bindings/sound/rockchip-spdif.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/rockchip-spdif.txt
diff --git a/Documentation/devicetree/bindings/sound/rockchip-spdif.txt b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
new file mode 100644
index 0000000..2da8a09
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt@@ -0,0 +1,41 @@ +* 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": for rk3066 + - "rockchip,rk3188-spdif", "rockchip,rk3066-spdif": for rk3188 + - "rockchip,rk3288-spdif", "rockchip,rk3066-spdif": for rk3288 +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: should contain the SPDIF interrupt. +- #address-cells: should be 1. +- #size-cells: should be 0. +- 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: + - "spdif_hclk": clock for SPPIF controller + - "spdif_clk" : clock for SPDIF bus + +Example for the rk3188 SPDIF controller: + +spdif: spdif at 0x1011e000 { + compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif"; + reg = <0x1011e000 0x2000>; + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + dmas = <&dmac1_s 8>; + dma-names = "tx"; + clock-names = "spdif_hclk", "spdif_clk"; + clocks = <&cru HCLK_SPDIF>, <&cru SCLK_SPDIF>; + status = "disabled"; + #sound-dai-cells = <0>; +};
--
2.4.6