* Hisilicon 6210 i2s controller
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Required properties:
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- compatible: should be one of the following:
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- "hisilicon,hi3660-i2s-1.0"
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- reg: physical base address of the i2s controller unit and length of
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memory mapped region.
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- interrupts: should contain the i2s interrupt.
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- clocks: a list of phandle + clock-specifier pairs, one for each entry
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in clock-names.
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- clock-names: should contain following:
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- "dacodec"
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- "i2s-base"
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- dmas: DMA specifiers for tx dma. See the DMA client binding,
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Documentation/devicetree/bindings/dma/dma.txt
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- dma-names: should be "tx" and "rx"
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- hisilicon,sysctrl-syscon: phandle to sysctrl syscon
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- #sound-dai-cells: Should be set to 1 (for multi-dai)
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Example for the hi3660 i2s controller:
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i2s2: hisi_i2s {
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compatible = "hisilicon,hi3660-i2s-1.0";
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reg = <0x0 0xe804f800 0x0 0x400>,
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<0x0 0xe804e000 0x0 0x400>;
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pinctrl-names = "default";
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pinctrl-0 = <&i2s2_pmx_func &i2s2_cfg_func>;
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dmas = <&asp_dmac 18 &asp_dmac 19>;
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dma-names = "rx", "tx";
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#sound-dai-cells = <0>;
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};
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sound {
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compatible = "simple-audio-card";
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simple-audio-card,name = "hikey-hdmi";
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simple-audio-card,format = "i2s";
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simple-audio-card,bitclock-master = <&sound_master>;
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simple-audio-card,frame-master = <&sound_master>;
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sound_master: simple-audio-card,cpu {
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sound-dai = <&i2s2>;
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};
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simple-audio-card,codec {
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sound-dai = <&adv7533>;
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};
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};
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