1Imagination Technologies I2S Output Controller 2 3Required Properties: 4 5 - compatible : Compatible list, must contain "img,i2s-out" 6 7 - #sound-dai-cells : Must be equal to 0 8 9 - reg : Offset and length of the register set for the device 10 11 - clocks : Contains an entry for each entry in clock-names 12 13 - clock-names : Must include the following entries: 14 "sys" The system clock 15 "ref" The reference clock 16 17 - dmas: Contains an entry for each entry in dma-names. 18 19 - dma-names: Must include the following entry: 20 "tx" Single DMA channel used by all active I2S channels 21 22 - img,i2s-channels : Number of I2S channels instantiated in the I2S out block 23 24 - resets: Contains a phandle to the I2S out reset signal 25 26 - reset-names: Contains the reset signal name "rst" 27 28Optional Properties: 29 30 - interrupts : Contains the I2S out interrupts. Depending on 31 the configuration, there may be no interrupts, one interrupt, 32 or an interrupt per I2S channel. For the case where there is 33 one interrupt per channel, the interrupts should be listed 34 in ascending channel order 35 36Example: 37 38i2s_out: i2s-out@18100a00 { 39 compatible = "img,i2s-out"; 40 reg = <0x18100A00 0x200>; 41 interrupts = <GIC_SHARED 13 IRQ_TYPE_LEVEL_HIGH>; 42 dmas = <&mdc 23 0xffffffff 0>; 43 dma-names = "tx"; 44 clocks = <&cr_periph SYS_CLK_I2S_OUT>, 45 <&clk_core CLK_I2S>; 46 clock-names = "sys", "ref"; 47 img,i2s-channels = <6>; 48 resets = <&pistachio_reset PISTACHIO_RESET_I2S_OUT>; 49 reset-names = "rst"; 50 #sound-dai-cells = <0>; 51}; 52