bindings/pinctrl/apple,pinctrl.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pinctrl/apple,pinctrl.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Apple GPIO controller
   8
   9 maintainers:
  10   - Mark Kettenis <kettenis@openbsd.org>
  11
  12 description: |
  13   The Apple GPIO controller is a simple combined pin and GPIO
  14   controller present on Apple ARM SoC platforms, including various
  15   iPhone and iPad devices and the "Apple Silicon" Macs.
  16
  17 properties:
  18   compatible:
  19     items:
  20       - enum:
  21           - apple,t8103-pinctrl
  22           - apple,t8112-pinctrl
  23           - apple,t6000-pinctrl
  24       - const: apple,pinctrl
  25
  26   reg:
  27     maxItems: 1
  28
  29   clocks:
  30     maxItems: 1
  31
  32   gpio-controller: true
  33
  34   '#gpio-cells':
  35     const: 2
  36
  37   gpio-ranges:
  38     maxItems: 1
  39
  40   apple,npins:
  41     $ref: /schemas/types.yaml#/definitions/uint32
  42     description: The number of pins in this GPIO controller.
  43
  44   interrupts:
  45     description: One interrupt for each of the (up to 7) interrupt
  46       groups supported by the controller sorted by interrupt group
  47       number in ascending order.
  48     minItems: 1
  49     maxItems: 7
  50
  51   interrupt-controller: true
  52
  53   '#interrupt-cells':
  54     const: 2
  55
  56   power-domains:
  57     maxItems: 1
  58
  59 patternProperties:
  60   '-pins$':
  61     type: object
  62     $ref: pinmux-node.yaml#
  63
  64     properties:
  65       pinmux:
  66         description:
  67           Values are constructed from pin number and alternate function
  68           configuration number using the APPLE_PINMUX() helper macro
  69           defined in include/dt-bindings/pinctrl/apple.h.
  70
  71     required:
  72       - pinmux
  73
  74     additionalProperties: false
  75
  76 allOf:
  77   - $ref: pinctrl.yaml#
  78
  79 required:
  80   - compatible
  81   - reg
  82   - gpio-controller
  83   - '#gpio-cells'
  84   - gpio-ranges
  85   - apple,npins
  86
  87 additionalProperties: false
  88
  89 examples:
  90   - |
  91     #include <dt-bindings/interrupt-controller/apple-aic.h>
  92     #include <dt-bindings/pinctrl/apple.h>
  93
  94     soc {
  95       #address-cells = <2>;
  96       #size-cells = <2>;
  97
  98       pinctrl: pinctrl@23c100000 {
  99         compatible = "apple,t8103-pinctrl", "apple,pinctrl";
 100         reg = <0x2 0x3c100000 0x0 0x100000>;
 101         clocks = <&gpio_clk>;
 102
 103         gpio-controller;
 104         #gpio-cells = <2>;
 105         gpio-ranges = <&pinctrl 0 0 212>;
 106         apple,npins = <212>;
 107
 108         interrupt-controller;
 109         #interrupt-cells = <2>;
 110         interrupt-parent = <&aic>;
 111         interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>,
 112                      <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>,
 113                      <AIC_IRQ 18 IRQ_TYPE_LEVEL_HIGH>,
 114                      <AIC_IRQ 19 IRQ_TYPE_LEVEL_HIGH>,
 115                      <AIC_IRQ 20 IRQ_TYPE_LEVEL_HIGH>,
 116                      <AIC_IRQ 21 IRQ_TYPE_LEVEL_HIGH>,
 117                      <AIC_IRQ 22 IRQ_TYPE_LEVEL_HIGH>;
 118
 119         pcie_pins: pcie-pins {
 120           pinmux = <APPLE_PINMUX(150, 1)>,
 121                    <APPLE_PINMUX(151, 1)>,
 122                    <APPLE_PINMUX(32, 1)>;
 123         };
 124       };
 125     };