1* Amlogic Audio PDM input 2 3Required properties: 4- compatible: 'amlogic,axg-pdm' or 5 'amlogic,g12a-pdm' or 6 'amlogic,sm1-pdm' 7- reg: physical base address of the controller and length of memory 8 mapped region. 9- clocks: list of clock phandle, one for each entry clock-names. 10- clock-names: should contain the following: 11 * "pclk" : peripheral clock. 12 * "dclk" : pdm digital clock 13 * "sysclk" : dsp system clock 14- #sound-dai-cells: must be 0. 15 16Optional property: 17- resets: phandle to the dedicated reset line of the pdm input. 18 19Example of PDM on the A113 SoC: 20 21pdm: audio-controller@ff632000 { 22 compatible = "amlogic,axg-pdm"; 23 reg = <0x0 0xff632000 0x0 0x34>; 24 #sound-dai-cells = <0>; 25 clocks = <&clkc_audio AUD_CLKID_PDM>, 26 <&clkc_audio AUD_CLKID_PDM_DCLK>, 27 <&clkc_audio AUD_CLKID_PDM_SYSCLK>; 28 clock-names = "pclk", "dclk", "sysclk"; 29}; 30