Imagination Technologies I2S Output Controller
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Required Properties:
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- compatible : Compatible list, must contain "img,i2s-out"
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- #sound-dai-cells : Must be equal to 0
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- reg : Offset and length of the register set for the device
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- clocks : Contains an entry for each entry in clock-names
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- clock-names : Must include the following entries:
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"sys" The system clock
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"ref" The reference clock
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- dmas: Contains an entry for each entry in dma-names.
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- dma-names: Must include the following entry:
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"tx" Single DMA channel used by all active I2S channels
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- img,i2s-channels : Number of I2S channels instantiated in the I2S out block
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- resets: Contains a phandle to the I2S out reset signal
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- reset-names: Contains the reset signal name "rst"
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Optional Properties:
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- interrupts : Contains the I2S out interrupts. Depending on
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the configuration, there may be no interrupts, one interrupt,
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or an interrupt per I2S channel. For the case where there is
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one interrupt per channel, the interrupts should be listed
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in ascending channel order
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Example:
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i2s_out: i2s-out@18100a00 {
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compatible = "img,i2s-out";
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reg = <0x18100A00 0x200>;
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interrupts = <GIC_SHARED 13 IRQ_TYPE_LEVEL_HIGH>;
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dmas = <&mdc 23 0xffffffff 0>;
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dma-names = "tx";
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clocks = <&cr_periph SYS_CLK_I2S_OUT>,
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<&clk_core CLK_I2S>;
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clock-names = "sys", "ref";
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img,i2s-channels = <6>;
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resets = <&pistachio_reset PISTACHIO_RESET_I2S_OUT>;
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reset-names = "rst";
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#sound-dai-cells = <0>;
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};
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