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Diffstat (limited to 'Documentation/devicetree/bindings/sound/mvebu-audio.txt')
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diff --git a/Documentation/devicetree/bindings/sound/mvebu-audio.txt b/Documentation/devicetree/bindings/sound/mvebu-audio.txt new file mode 100644 index 000000000..4f5dec5cb --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mvebu-audio.txt @@ -0,0 +1,46 @@ +* mvebu (Kirkwood, Dove, Armada 370) audio controller + +Required properties: + +- compatible: + "marvell,kirkwood-audio" for Kirkwood platforms + "marvell,dove-audio" for Dove platforms + "marvell,armada370-audio" for Armada 370 platforms + "marvell,armada-380-audio" for Armada 38x platforms + +- reg: physical base address of the controller and length of memory mapped + region (named "i2s_regs"). + With "marvell,armada-380-audio" two other regions are required: + first of those is dedicated for Audio PLL Configuration registers + (named "pll_regs") and the second one ("soc_ctrl") - for register + where one of exceptive I/O types (I2S or S/PDIF) is set. + +- interrupts: + with "marvell,kirkwood-audio", the audio interrupt + with "marvell,dove-audio", a list of two interrupts, the first for + the data flow, and the second for errors. + +- clocks: one or two phandles. + The first one is mandatory and defines the internal clock. + The second one is optional and defines an external clock. + +- clock-names: names associated to the clocks: + "internal" for the internal clock + "extclk" for the external clock + +Optional properties: + +- spdif-mode: + Enable S/PDIF mode on Armada 38x SoC. Using this property + disables standard I2S I/O. Valid only with "marvell,armada-380-audio" + compatible string. + +Example: + +i2s1: audio-controller@b4000 { + compatible = "marvell,dove-audio"; + reg = <0xb4000 0x2210>; + interrupts = <21>, <22>; + clocks = <&gate_clk 13>; + clock-names = "internal"; +}; |