Documentation/devicetree/bindings/mailbox/rockchip,rk3368-mailbox.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mailbox/rockchip,rk3368-mailbox.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip RK3368 Mailbox Controller

maintainers:
  - Heiko Stuebner <heiko@sntech.de>

description:
  The Rockchip mailbox is used by the Rockchip CPU cores to communicate
  requests to MCU processor.

properties:
  compatible:
    const: rockchip,rk3368-mailbox

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    const: pclk_mailbox

  interrupts:
    description: One interrupt for each channel
    maxItems: 4

  '#mbox-cells':
    const: 1

required:
  - compatible
  - reg
  - interrupts
  - '#mbox-cells'

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    mailbox@ff6b0000 {
        compatible = "rockchip,rk3368-mailbox";
        reg = <0xff6b0000 0x1000>;
        interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
        #mbox-cells = <1>;
    };