Documentation/devicetree/bindings/sound/rockchip,pdm.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/rockchip,pdm.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/rockchip,pdm.yaml
Extension
.yaml
Size
2841 bytes
Lines
124
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

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

title: Rockchip PDM controller

description:
  The Pulse Density Modulation Interface Controller (PDMC) is
  a PDM interface controller and decoder that support PDM format.
  It integrates a clock generator driving the PDM microphone
  and embeds filters which decimate the incoming bit stream to
  obtain most common audio rates.

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

allOf:
  - $ref: dai-common.yaml#

properties:
  compatible:
    enum:
      - rockchip,pdm
      - rockchip,px30-pdm
      - rockchip,rk1808-pdm
      - rockchip,rk3308-pdm
      - rockchip,rk3568-pdm
      - rockchip,rv1126-pdm

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: clock for PDM controller
      - description: clock for PDM BUS

  clock-names:
    items:
      - const: pdm_clk
      - const: pdm_hclk

  dmas:
    maxItems: 1

  dma-names:
    items:
      - const: rx

  power-domains:
    maxItems: 1

  resets:
    items:
      - description: reset for PDM controller

  reset-names:
    items:
      - const: pdm-m

  rockchip,path-map:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    description:
      Defines the mapping of PDM SDIx to PDM PATHx.
      By default, they are mapped one-to-one.

Annotation

Implementation Notes