xref: /freebsd/sys/contrib/device-tree/Bindings/sound/zte,tdm.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotZTE TDM DAI driver
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotRequired properties:
4*c66ec88fSEmmanuel Vadot
5*c66ec88fSEmmanuel Vadot- compatible : should be one of the following.
6*c66ec88fSEmmanuel Vadot       * zte,zx296718-tdm
7*c66ec88fSEmmanuel Vadot- reg : physical base address of the controller and length of memory mapped
8*c66ec88fSEmmanuel Vadot    region.
9*c66ec88fSEmmanuel Vadot- clocks : Pairs of phandle and specifier referencing the controller's clocks.
10*c66ec88fSEmmanuel Vadot- clock-names: "wclk" for the wclk.
11*c66ec88fSEmmanuel Vadot               "pclk" for the pclk.
12*c66ec88fSEmmanuel Vadot-#clock-cells: should be 1.
13*c66ec88fSEmmanuel Vadot- zte,tdm-dma-sysctrl : Reference to the sysctrl controller controlling
14*c66ec88fSEmmanuel Vadot    the dma. includes:
15*c66ec88fSEmmanuel Vadot	phandle of sysctrl.
16*c66ec88fSEmmanuel Vadot	register offset in sysctrl for control dma.
17*c66ec88fSEmmanuel Vadot	mask of the register that be written to sysctrl.
18*c66ec88fSEmmanuel Vadot
19*c66ec88fSEmmanuel VadotExample:
20*c66ec88fSEmmanuel Vadot
21*c66ec88fSEmmanuel Vadot	tdm: tdm@1487000 {
22*c66ec88fSEmmanuel Vadot		compatible = "zte,zx296718-tdm";
23*c66ec88fSEmmanuel Vadot		reg = <0x01487000 0x1000>;
24*c66ec88fSEmmanuel Vadot		clocks = <&audiocrm AUDIO_TDM_WCLK>, <&audiocrm AUDIO_TDM_PCLK>;
25*c66ec88fSEmmanuel Vadot		clock-names = "wclk", "pclk";
26*c66ec88fSEmmanuel Vadot		#clock-cells = <1>;
27*c66ec88fSEmmanuel Vadot		pinctrl-names = "default";
28*c66ec88fSEmmanuel Vadot		pinctrl-0 = <&tdm_global_pin>;
29*c66ec88fSEmmanuel Vadot		zte,tdm-dma-sysctrl = <&sysctrl 0x10c 4>;
30*c66ec88fSEmmanuel Vadot	};
31