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    Subject[PATCH 04/18] dt-bindings: mfd: Add bindings for sl28cpld
    Date
    This adds device tree bindings for the board management controller found
    on the Kontron SMARC-sAL28 board.

    Signed-off-by: Michael Walle <michael@walle.cc>
    ---
    .../bindings/mfd/kontron,sl28cpld.yaml | 143 ++++++++++++++++++
    1 file changed, 143 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml

    diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
    new file mode 100644
    index 000000000000..3b9cca49d2d6
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
    @@ -0,0 +1,143 @@
    +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/mfd/kontron,sl28cpld.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: Kontron's sl28cpld board management controller
    +
    +maintainers:
    + - Michael Walle <michael@walle.cc>
    +
    +description: |
    + The board management controller may contain different IP blocks like
    + watchdog, fan monitoring, PWM controller, interrupt controller and a
    + GPIO controller.
    +
    +properties:
    + compatible:
    + const: kontron,sl28cpld
    +
    + reg:
    + description:
    + I2C device address.
    + maxItems: 1
    +
    + "#address-cells":
    + const: 1
    +
    + "#size-cells":
    + const: 0
    +
    + "#interrupt-cells":
    + const: 2
    +
    + interrupts:
    + maxItems: 1
    +
    + interrupt-controller: true
    +
    +patternProperties:
    + "^gp(io|i|o)(@[0-9]+)?$":
    + $ref: ../gpio/kontron,sl28cpld-gpio.yaml
    +
    + "^hwmon(@[0-9]+)?$":
    + $ref: ../hwmon/kontron,sl28cpld-hwmon.yaml
    +
    + "^pwm(@[0-9]+)?$":
    + $ref: ../pwm/kontron,sl28cpld-pwm.yaml
    +
    + "^watchdog(@[0-9]+)?$":
    + $ref: ../watchdog/kontron,sl28cpld-wdt.yaml
    +
    +required:
    + - "#address-cells"
    + - "#size-cells"
    + - compatible
    + - reg
    + - "#interrupt-cells"
    + - interrupt-controller
    +
    +oneOf:
    + - required:
    + - interrupts
    + - required:
    + - interrupts-extended
    +
    +additionalProperties: false
    +
    +examples:
    + - |
    + #include <dt-bindings/interrupt-controller/irq.h>
    + i2c {
    + #address-cells = <1>;
    + #size-cells = <0>;
    +
    + sl28cpld@4a {
    + #address-cells = <1>;
    + #size-cells = <0>;
    + compatible = "kontron,sl28cpld";
    + reg = <0x4a>;
    + interrupts-extended = <&gpio2 6 IRQ_TYPE_EDGE_FALLING>;
    +
    + #interrupt-cells = <2>;
    + interrupt-controller;
    +
    + gpio@0 {
    + compatible = "kontron,sl28cpld-gpio";
    + reg = <0>;
    +
    + gpio-controller;
    + #gpio-cells = <2>;
    +
    + interrupt-controller;
    + #interrupt-cells = <2>;
    + };
    +
    + gpio@1 {
    + compatible = "kontron,sl28cpld-gpio";
    + reg = <1>;
    +
    + gpio-controller;
    + #gpio-cells = <2>;
    +
    + interrupt-controller;
    + #interrupt-cells = <2>;
    + };
    +
    + gpo {
    + compatible = "kontron,sl28cpld-gpo";
    +
    + gpio-controller;
    + #gpio-cells = <2>;
    + gpio-line-names = "a", "b", "c";
    + };
    +
    + gpi {
    + compatible = "kontron,sl28cpld-gpi";
    +
    + gpio-controller;
    + #gpio-cells = <2>;
    + };
    +
    + hwmon {
    + compatible = "kontron,sl28cpld-fan";
    + };
    +
    + pwm@0 {
    + compatible = "kontron,sl28cpld-pwm";
    + reg = <0>;
    + #pwm-cells = <2>;
    + };
    +
    + pwm@1 {
    + compatible = "kontron,sl28cpld-pwm";
    + reg = <1>;
    + #pwm-cells = <2>;
    + };
    +
    + watchdog {
    + compatible = "kontron,sl28cpld-wdt";
    + };
    + };
    + };
    --
    2.20.1
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