| Mark Kettenis | c932976 | 2021-11-02 18:21:57 +0100 | [diff] [blame] | 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 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Apple GPIO controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Mark Kettenis <kettenis@openbsd.org> |
| 11 | |
| 12 | description: | |
| 13 | The Apple GPIO controller is a simple combined pin and GPIO |
| 14 | controller present on Apple ARM SoC platforms, including various |
| 15 | iPhone and iPad devices and the "Apple Silicon" Macs. |
| 16 | |
| 17 | properties: |
| 18 | compatible: |
| 19 | items: |
| 20 | - const: apple,t8103-pinctrl |
| 21 | - const: apple,pinctrl |
| 22 | |
| 23 | reg: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | clocks: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | gpio-controller: true |
| 30 | |
| 31 | '#gpio-cells': |
| 32 | const: 2 |
| 33 | |
| 34 | gpio-ranges: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | interrupts: |
| 38 | description: One interrupt for each of the (up to 7) interrupt |
| 39 | groups supported by the controller sorted by interrupt group |
| 40 | number in ascending order. |
| 41 | minItems: 1 |
| 42 | maxItems: 7 |
| 43 | |
| 44 | interrupt-controller: true |
| 45 | |
| 46 | patternProperties: |
| 47 | '-pins$': |
| 48 | type: object |
| 49 | $ref: pinmux-node.yaml# |
| 50 | |
| 51 | properties: |
| 52 | pinmux: |
| 53 | description: |
| 54 | Values are constructed from pin number and alternate function |
| 55 | configuration number using the APPLE_PINMUX() helper macro |
| 56 | defined in include/dt-bindings/pinctrl/apple.h. |
| 57 | |
| 58 | required: |
| 59 | - pinmux |
| 60 | |
| 61 | additionalProperties: false |
| 62 | |
| 63 | required: |
| 64 | - compatible |
| 65 | - reg |
| 66 | - gpio-controller |
| 67 | - '#gpio-cells' |
| 68 | - gpio-ranges |
| 69 | |
| 70 | additionalProperties: false |
| 71 | |
| 72 | examples: |
| 73 | - | |
| 74 | #include <dt-bindings/interrupt-controller/apple-aic.h> |
| 75 | #include <dt-bindings/pinctrl/apple.h> |
| 76 | |
| 77 | soc { |
| 78 | #address-cells = <2>; |
| 79 | #size-cells = <2>; |
| 80 | |
| 81 | pinctrl: pinctrl@23c100000 { |
| 82 | compatible = "apple,t8103-pinctrl", "apple,pinctrl"; |
| 83 | reg = <0x2 0x3c100000 0x0 0x100000>; |
| 84 | clocks = <&gpio_clk>; |
| 85 | |
| 86 | gpio-controller; |
| 87 | #gpio-cells = <2>; |
| 88 | gpio-ranges = <&pinctrl 0 0 212>; |
| 89 | |
| 90 | interrupt-controller; |
| 91 | interrupt-parent = <&aic>; |
| 92 | interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>, |
| 93 | <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>, |
| 94 | <AIC_IRQ 18 IRQ_TYPE_LEVEL_HIGH>, |
| 95 | <AIC_IRQ 19 IRQ_TYPE_LEVEL_HIGH>, |
| 96 | <AIC_IRQ 20 IRQ_TYPE_LEVEL_HIGH>, |
| 97 | <AIC_IRQ 21 IRQ_TYPE_LEVEL_HIGH>, |
| 98 | <AIC_IRQ 22 IRQ_TYPE_LEVEL_HIGH>; |
| 99 | |
| 100 | pcie_pins: pcie-pins { |
| 101 | pinmux = <APPLE_PINMUX(150, 1)>, |
| 102 | <APPLE_PINMUX(151, 1)>, |
| 103 | <APPLE_PINMUX(32, 1)>; |
| 104 | }; |
| 105 | }; |
| 106 | }; |