# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mailbox/qcom,cpucp-mbox.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Technologies, Inc. CPUCP Mailbox Controller

maintainers:
  - Sibi Sankar <quic_sibis@quicinc.com>

description:
  The CPUSS Control Processor (CPUCP) mailbox controller enables communication
  between AP and CPUCP by acting as a doorbell between them.

properties:
  compatible:
    items:
      - const: qcom,x1e80100-cpucp-mbox

  reg:
    items:
      - description: CPUCP rx register region
      - description: CPUCP tx register region

  interrupts:
    maxItems: 1

  "#mbox-cells":
    const: 1

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

additionalProperties: false

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

    mailbox@17430000 {
        compatible = "qcom,x1e80100-cpucp-mbox";
        reg = <0x17430000 0x10000>, <0x18830000 0x10000>;
        interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
        #mbox-cells = <1>;
    };