Commit 71007147 authored by Mark Kettenis's avatar Mark Kettenis Committed by Linus Walleij
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dt-bindings: pinctrl: Add DT bindings for apple, pinctrl 



The Apple GPIO controller is a simple combined pin and GPIO conroller
present on Apple ARM SoC platforms, including various iPhone and iPad
devices and the "Apple Silicon" Macs.

Signed-off-by: default avatarMark Kettenis <kettenis@openbsd.org>
Link: https://lore.kernel.org/r/20210520171310.772-2-mark.kettenis@xs4all.nl


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent f56b273c

Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/pinctrl/apple,pinctrl.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Apple GPIO controller



maintainers:

  - Mark Kettenis <kettenis@openbsd.org>



description: |

  The Apple GPIO controller is a simple combined pin and GPIO

  controller present on Apple ARM SoC platforms, including various

  iPhone and iPad devices and the "Apple Silicon" Macs.



properties:

  compatible:

    items:

      - const: apple,t8103-pinctrl

      - const: apple,pinctrl



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  gpio-controller: true



  '#gpio-cells':

    const: 2



  gpio-ranges:

    maxItems: 1



  interrupts:

    description: One interrupt for each of the (up to 7) interrupt

      groups supported by the controller sorted by interrupt group

      number in ascending order.

    minItems: 1

    maxItems: 7



  interrupt-controller: true



patternProperties:

  '-pins$':

    type: object

    $ref: pinmux-node.yaml#



    properties:

      pinmux:

        description:

          Values are constructed from pin number and alternate function

          configuration number using the APPLE_PINMUX() helper macro

          defined in include/dt-bindings/pinctrl/apple.h.



    required:

      - pinmux



    additionalProperties: false



required:

  - compatible

  - reg

  - gpio-controller

  - '#gpio-cells'

  - gpio-ranges



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/apple-aic.h>

    #include <dt-bindings/pinctrl/apple.h>



    soc {

      #address-cells = <2>;

      #size-cells = <2>;



      pinctrl: pinctrl@23c100000 {

        compatible = "apple,t8103-pinctrl", "apple,pinctrl";

        reg = <0x2 0x3c100000 0x0 0x100000>;

        clocks = <&gpio_clk>;



        gpio-controller;

        #gpio-cells = <2>;

        gpio-ranges = <&pinctrl 0 0 212>;



        interrupt-controller;

        interrupt-parent = <&aic>;

        interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>,

                     <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>,

                     <AIC_IRQ 18 IRQ_TYPE_LEVEL_HIGH>,

                     <AIC_IRQ 19 IRQ_TYPE_LEVEL_HIGH>,

                     <AIC_IRQ 20 IRQ_TYPE_LEVEL_HIGH>,

                     <AIC_IRQ 21 IRQ_TYPE_LEVEL_HIGH>,

                     <AIC_IRQ 22 IRQ_TYPE_LEVEL_HIGH>;



        pcie_pins: pcie-pins {

          pinmux = <APPLE_PINMUX(150, 1)>,

                   <APPLE_PINMUX(151, 1)>,

                   <APPLE_PINMUX(32, 1)>;

        };

      };

    };

MAINTAINERS

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@@ -1655,9 +1655,11 @@ C: irc://chat.freenode.net/asahi-dev 
T:	git https://github.com/AsahiLinux/linux.git

F:	Documentation/devicetree/bindings/arm/apple.yaml

F:	Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml

F:	Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml

F:	arch/arm64/boot/dts/apple/

F:	drivers/irqchip/irq-apple-aic.c

F:	include/dt-bindings/interrupt-controller/apple-aic.h

F:	include/dt-bindings/pinctrl/apple.h









ARM/ARTPEC MACHINE SUPPORT









M:	Jesper Nilsson <jesper.nilsson@axis.com>


































include/dt-bindings/pinctrl/apple.h
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/* SPDX-License-Identifier: GPL-2.0+ OR MIT */









/*









 * This header provides constants for Apple pinctrl bindings.









 */



















#ifndef _DT_BINDINGS_PINCTRL_APPLE_H









#define _DT_BINDINGS_PINCTRL_APPLE_H



















#define APPLE_PINMUX(pin, func) ((pin) | ((func) << 16))









#define APPLE_PIN(pinmux) ((pinmux) & 0xffff)









#define APPLE_FUNC(pinmux) ((pinmux) >> 16)



















#endif /* _DT_BINDINGS_PINCTRL_APPLE_H */