dts/bindings/interrupt-controller/wch,exti.yaml

# Copyright (c) 2025 Michael Hope
# SPDX-License-Identifier: Apache-2.0

description: WCH CH32V003/20x/30x External Interrupt and Event Controller (EXTI)

compatible: "wch,exti"

include: [base.yaml, interrupt-controller.yaml]

properties:
  reg:
    required: true

  interrupts:
    required: true

  num-lines:
    type: int
    required: true
    description: Number of lines supported by the interrupt controller.

  line-ranges:
    type: array
    required: true
    description: |
      Describes how the input lines are grouped into ranges. Each range
      consists of a (starting line, number of lines) pair and map to
      a single interrupt.

      For example:
             line-ranges = <0 1>, <1 1>, <2 1>, <3 1>,
                           <4 1>, <5 5>, <10 6>;

      defines seven ranges where the first five contain one line, the
      sixth starts with line 5 and contains five elements (5 to 9), and
      the last starts with line 10 and contains six elements (10 to 15).