1*4882a593SmuzhiyunZTE ZX296702 I2S controller 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun - compatible : Must be one of: 5*4882a593Smuzhiyun "zte,zx296718-i2s", "zte,zx296702-i2s" 6*4882a593Smuzhiyun "zte,zx296702-i2s" 7*4882a593Smuzhiyun - reg : Must contain I2S core's registers location and length 8*4882a593Smuzhiyun - clocks : Pairs of phandle and specifier referencing the controller's clocks. 9*4882a593Smuzhiyun - clock-names: "wclk" for the wclk, "pclk" for the pclk to the I2S interface. 10*4882a593Smuzhiyun - dmas: Pairs of phandle and specifier for the DMA channel that is used by 11*4882a593Smuzhiyun the core. The core expects two dma channels for transmit. 12*4882a593Smuzhiyun - dma-names : Must be "tx" and "rx" 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunFor more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties 15*4882a593Smuzhiyunplease check: 16*4882a593Smuzhiyun * resource-names.txt 17*4882a593Smuzhiyun * clock/clock-bindings.txt 18*4882a593Smuzhiyun * dma/dma.txt 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunExample: 21*4882a593Smuzhiyun i2s0: i2s@b005000 { 22*4882a593Smuzhiyun #sound-dai-cells = <0>; 23*4882a593Smuzhiyun compatible = "zte,zx296718-i2s", "zte,zx296702-i2s"; 24*4882a593Smuzhiyun reg = <0x0b005000 0x1000>; 25*4882a593Smuzhiyun clocks = <&audiocrm AUDIO_I2S0_WCLK>, <&audiocrm AUDIO_I2S0_PCLK>; 26*4882a593Smuzhiyun clock-names = "wclk", "pclk"; 27*4882a593Smuzhiyun interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>; 28*4882a593Smuzhiyun dmas = <&dma 5>, <&dma 6>; 29*4882a593Smuzhiyun dma-names = "tx", "rx"; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun sound { 33*4882a593Smuzhiyun compatible = "simple-audio-card"; 34*4882a593Smuzhiyun simple-audio-card,name = "zx296702_snd"; 35*4882a593Smuzhiyun simple-audio-card,format = "left_j"; 36*4882a593Smuzhiyun simple-audio-card,bitclock-master = <&sndcodec>; 37*4882a593Smuzhiyun simple-audio-card,frame-master = <&sndcodec>; 38*4882a593Smuzhiyun sndcpu: simple-audio-card,cpu { 39*4882a593Smuzhiyun sound-dai = <&i2s0>; 40*4882a593Smuzhiyun }; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun sndcodec: simple-audio-card,codec { 43*4882a593Smuzhiyun sound-dai = <&acodec>; 44*4882a593Smuzhiyun }; 45*4882a593Smuzhiyun }; 46