Documentation/devicetree/bindings/sound/imx-audmux.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/imx-audmux.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale Digital Audio Mux device
   8
   9 maintainers:
  10   - Oleksij Rempel <o.rempel@pengutronix.de>
  11
  12 properties:
  13   compatible:
  14     oneOf:
  15       - items:
  16           - enum:
  17               - fsl,imx27-audmux
  18           - const: fsl,imx21-audmux
  19       - items:
  20           - enum:
  21               - fsl,imx25-audmux
  22               - fsl,imx35-audmux
  23               - fsl,imx50-audmux
  24               - fsl,imx51-audmux
  25               - fsl,imx53-audmux
  26               - fsl,imx6q-audmux
  27               - fsl,imx6sl-audmux
  28               - fsl,imx6sll-audmux
  29               - fsl,imx6sx-audmux
  30           - const: fsl,imx31-audmux
  31
  32   reg:
  33     maxItems: 1
  34
  35   clocks:
  36     maxItems: 1
  37
  38   clock-names:
  39     items:
  40       - const: audmux
  41
  42 patternProperties:
  43   "^mux-[0-9a-z]*$":
  44     type: object
  45     properties:
  46       fsl,audmux-port:
  47         $ref: /schemas/types.yaml#/definitions/uint32
  48         description: |
  49           Integer of the audmux port that is configured by this child node
  50
  51       fsl,port-config:
  52         $ref: /schemas/types.yaml#/definitions/uint32-array
  53         description: |
  54           List of configuration options for the specific port.
  55           For imx31-audmux and above, it is a list of tuples ptcr pdcr.
  56           For imx21-audmux it is a list of pcr values.
  57
  58     required:
  59       - fsl,audmux-port
  60       - fsl,port-config
  61
  62     additionalProperties: false
  63
  64 required:
  65   - compatible
  66   - reg
  67
  68 additionalProperties: false
  69
  70 examples:
  71   - |
  72     audmux@21d8000 {
  73         compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";
  74         reg = <0x021d8000 0x4000>;
  75     };
  76   - |
  77     audmux@10016000 {
  78         compatible = "fsl,imx27-audmux", "fsl,imx21-audmux";
  79         reg = <0x10016000 0x1000>;
  80         clocks = <&clks 1>;
  81         clock-names = "audmux";
  82
  83         mux-ssi0 {
  84             fsl,audmux-port = <0>;
  85             fsl,port-config = <0xcb205000>;
  86         };
  87
  88         mux-pins4 {
  89             fsl,audmux-port = <2>;
  90             fsl,port-config = <0x00001000>;
  91         };
  92     };
  93   - |
  94     #include <dt-bindings/sound/fsl-imx-audmux.h>
  95     audmux@21d8000 {
  96         compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";
  97         reg = <0x021d8000 0x4000>;
  98         pinctrl-names = "default";
  99         pinctrl-0 = <&pinctrl_audmux>;
 100
 101         mux-ssi1 {
 102             fsl,audmux-port = <0>;
 103             fsl,port-config = <
 104                 IMX_AUDMUX_V2_PTCR_SYN          0
 105                 IMX_AUDMUX_V2_PTCR_TFSEL(2)     0
 106                 IMX_AUDMUX_V2_PTCR_TCSEL(2)     0
 107                 IMX_AUDMUX_V2_PTCR_TFSDIR       0
 108                 IMX_AUDMUX_V2_PTCR_TCLKDIR      IMX_AUDMUX_V2_PDCR_RXDSEL(2)
 109               >;
 110         };
 111
 112         mux-pins3 {
 113             fsl,audmux-port = <2>;
 114             fsl,port-config = <
 115                 IMX_AUDMUX_V2_PTCR_SYN          IMX_AUDMUX_V2_PDCR_RXDSEL(0)
 116                 0                               IMX_AUDMUX_V2_PDCR_TXRXEN
 117               >;
 118         };
 119     };