Commit 8373767b authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Sudeep Holla
Browse files

dt-bindings: arm: arm,juno-fpga-apb-regs: document FPGA syscon 



Add dedicated bindings for the FPGA syscon registers on ARM Juno board,
to fully document the block and also fix dtbs_check warning:

  juno.dtb: apbregs@10000: compatible: ['syscon', 'simple-mfd'] is too short

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240518203903.119608-1-krzysztof.kozlowski@linaro.org


Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent 1613e604

Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/arm/arm,juno-fpga-apb-regs.yaml#

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



title: ARM Juno FPGA APB Registers



maintainers:

  - Sudeep Holla <sudeep.holla@arm.com>



properties:

  compatible:

    items:

      - const: arm,juno-fpga-apb-regs

      - const: syscon

      - const: simple-mfd



  reg:

    maxItems: 1



  ranges: true



  "#address-cells":

    const: 1



  "#size-cells":

    const: 1



patternProperties:

  "^led@[0-9a-f]+,[0-9a-f]$":

    $ref: /schemas/leds/register-bit-led.yaml#



required:

  - compatible

  - reg

  - ranges

  - "#address-cells"

  - "#size-cells"



additionalProperties: false



examples:

  - |

    syscon@10000 {

        compatible = "arm,juno-fpga-apb-regs", "syscon", "simple-mfd";

        reg = <0x010000 0x1000>;

        ranges = <0x0 0x10000 0x1000>;

        #address-cells = <1>;

        #size-cells = <1>;



        led@8,0 {

            compatible = "register-bit-led";

            reg = <0x08 0x04>;

            offset = <0x08>;

            mask = <0x01>;

            label = "vexpress:0";

            linux,default-trigger = "heartbeat";

            default-state = "on";

        };

    };