xref: /freebsd-src/sys/contrib/device-tree/Bindings/sound/imx-audmux.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotFreescale Digital Audio Mux (AUDMUX) device
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotRequired properties:
4*c66ec88fSEmmanuel Vadot
5*c66ec88fSEmmanuel Vadot  - compatible		: "fsl,imx21-audmux" for AUDMUX version firstly used
6*c66ec88fSEmmanuel Vadot			  on i.MX21, or "fsl,imx31-audmux" for the version
7*c66ec88fSEmmanuel Vadot			  firstly used on i.MX31.
8*c66ec88fSEmmanuel Vadot
9*c66ec88fSEmmanuel Vadot  - reg			: Should contain AUDMUX registers location and length.
10*c66ec88fSEmmanuel Vadot
11*c66ec88fSEmmanuel VadotAn initial configuration can be setup using child nodes.
12*c66ec88fSEmmanuel Vadot
13*c66ec88fSEmmanuel VadotRequired properties of optional child nodes:
14*c66ec88fSEmmanuel Vadot
15*c66ec88fSEmmanuel Vadot  - fsl,audmux-port	: Integer of the audmux port that is configured by this
16*c66ec88fSEmmanuel Vadot			  child node.
17*c66ec88fSEmmanuel Vadot
18*c66ec88fSEmmanuel Vadot  - fsl,port-config	: List of configuration options for the specific port.
19*c66ec88fSEmmanuel Vadot			  For imx31-audmux and above, it is a list of tuples
20*c66ec88fSEmmanuel Vadot			  <ptcr pdcr>. For imx21-audmux it is a list of pcr
21*c66ec88fSEmmanuel Vadot			  values.
22*c66ec88fSEmmanuel Vadot
23*c66ec88fSEmmanuel VadotExample:
24*c66ec88fSEmmanuel Vadot
25*c66ec88fSEmmanuel Vadotaudmux@21d8000 {
26*c66ec88fSEmmanuel Vadot	compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";
27*c66ec88fSEmmanuel Vadot	reg = <0x021d8000 0x4000>;
28*c66ec88fSEmmanuel Vadot};
29