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     1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
    2 # Copyright (C) 2021 GE Inc.
    3 # Copyright (C) 2021 Collabora Ltd.
    4 %YAML 1.2
    5 ---
    6 $id: http://devicetree.org/schemas/misc/ge-achc.yaml#
    7 $schema: http://devicetree.org/meta-schemas/core.yaml#
    8 
    9 title: GE Healthcare USB Management Controller
   10 
   11 description: |
   12   A device which handles data acquisition from compatible USB based peripherals.
   13   SPI is used for device management.
   14 
   15   Note: This device does not expose the peripherals as USB devices.
   16 
   17 maintainers:
   18   - Sebastian Reichel <sre@kernel.org>
   19 
   20 properties:
   21   compatible:
   22     items:
   23       - const: ge,achc
   24       - const: nxp,kinetis-k20
   25 
   26   clocks:
   27     maxItems: 1
   28 
   29   vdd-supply:
   30     description: Digital power supply regulator on VDD pin
   31 
   32   vdda-supply:
   33     description: Analog power supply regulator on VDDA pin
   34 
   35   reg:
   36     items:
   37       - description: Control interface
   38       - description: Firmware programming interface
   39 
   40   reset-gpios:
   41     description: GPIO used for hardware reset.
   42     maxItems: 1
   43 
   44 required:
   45   - compatible
   46   - clocks
   47   - reg
   48   - reset-gpios
   49 
   50 additionalProperties: false
   51 
   52 examples:
   53   - |
   54     #include <dt-bindings/gpio/gpio.h>
   55     spi {
   56         #address-cells = <1>;
   57         #size-cells = <0>;
   58 
   59         spi@1 {
   60             compatible = "ge,achc", "nxp,kinetis-k20";
   61             reg = <1>, <0>;
   62             clocks = <&achc_24M>;
   63             reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
   64         };
   65     };
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