Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pinctrl/fsl,imx7d-pinctrl.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale IMX7D IOMUX Controller
   8
   9 maintainers:
  10   - Dong Aisheng <aisheng.dong@nxp.com>
  11
  12 description:
  13   Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
  14   for common binding part and usage.
  15
  16 properties:
  17   compatible:
  18     oneOf:
  19       - enum:
  20           - fsl,imx7d-iomuxc
  21           - fsl,imx7d-iomuxc-lpsr
  22
  23   reg:
  24     maxItems: 1
  25
  26   fsl,input-sel:
  27     description:
  28       phandle for main iomuxc controller which shares the input select
  29       register for daisy chain settings.
  30     $ref: /schemas/types.yaml#/definitions/phandle
  31
  32 # Client device subnode's properties
  33 patternProperties:
  34   'grp$':
  35     type: object
  36     description:
  37       Pinctrl node's client devices use subnodes for desired pin configuration.
  38       Client device subnodes use below standard properties.
  39
  40     properties:
  41       fsl,pins:
  42         description:
  43           each entry consists of 6 integers and represents the mux and config
  44           setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
  45           mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
  46           be found in <arch/arm/boot/dts/imx7d-pinfunc.h>. The last integer
  47           CONFIG is the pad setting value like pull-up on this pin. Please
  48           refer to i.MX7D Reference Manual for detailed CONFIG settings.
  49         $ref: /schemas/types.yaml#/definitions/uint32-matrix
  50         items:
  51           items:
  52             - description: |
  53                 "mux_reg" indicates the offset of mux register.
  54             - description: |
  55                 "conf_reg" indicates the offset of pad configuration register.
  56             - description: |
  57                 "input_reg" indicates the offset of select input register.
  58             - description: |
  59                 "mux_val" indicates the mux value to be applied.
  60             - description: |
  61                 "input_val" indicates the select input value to be applied.
  62             - description: |
  63                 "pad_setting" indicates the pad configuration value to be applied.
  64
  65     required:
  66       - fsl,pins
  67
  68     additionalProperties: false
  69
  70 allOf:
  71   - $ref: "pinctrl.yaml#"
  72
  73 required:
  74   - compatible
  75   - reg
  76
  77 if:
  78   properties:
  79     compatible:
  80       contains:
  81         enum:
  82           - fsl,imx7d-iomuxc-lpsr
  83
  84 then:
  85   required:
  86     - fsl,input-sel
  87
  88 additionalProperties: false
  89
  90 examples:
  91   - |
  92     iomuxc: pinctrl@30330000 {
  93       compatible = "fsl,imx7d-iomuxc";
  94       reg = <0x30330000 0x10000>;
  95
  96       pinctrl_uart5: uart5grp {
  97         fsl,pins =
  98           <0x0160 0x03D0 0x0714 0x1 0x0 0x7e>,
  99           <0x0164 0x03D4 0x0000 0x1 0x0 0x76>;
 100       };
 101     };
 102   - |
 103     iomuxc_lpsr: pinctrl@302c0000 {
 104       compatible = "fsl,imx7d-iomuxc-lpsr";
 105       reg = <0x302c0000 0x10000>;
 106       fsl,input-sel = <&iomuxc>;
 107
 108       pinctrl_gpio_lpsr: gpio1-grp {
 109           fsl,pins =
 110             <0x0008 0x0038 0x0000 0x0 0x0       0x59>,
 111             <0x000C 0x003C 0x0000 0x0 0x0       0x59>;
 112         };
 113     };