Documentation/devicetree/bindings/sound/fsl,micfil.yaml

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

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/fsl,micfil.yaml
Extension
.yaml
Size
2430 bytes
Lines
97
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/fsl,micfil.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NXP MICFIL Digital Audio Interface (MICFIL)

maintainers:
  - Shengjiu Wang <shengjiu.wang@nxp.com>

description: |
  The MICFIL digital interface provides a 16-bit or 24-bit audio signal
  from a PDM microphone bitstream in a configurable output sampling rate.

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - fsl,imx95-micfil
          - const: fsl,imx93-micfil

      - enum:
          - fsl,imx8mm-micfil
          - fsl,imx8mp-micfil
          - fsl,imx93-micfil
          - fsl,imx943-micfil

  reg:
    maxItems: 1

  interrupts:
    items:
      - description: Digital Microphone interface interrupt
      - description: Digital Microphone interface error interrupt
      - description: voice activity detector event interrupt
      - description: voice activity detector error interrupt

  dmas:
    items:
      - description: DMA controller phandle and request line for RX

  dma-names:
    items:
      - const: rx

  clocks:
    items:
      - description: The ipg clock for register access
      - description: internal micfil clock
      - description: PLL clock source for 8kHz series
      - description: PLL clock source for 11kHz series
      - description: External clock 3
    minItems: 2

  clock-names:
    items:
      - const: ipg_clk
      - const: ipg_clk_app
      - const: pll8k
      - const: pll11k
      - const: clkext3
    minItems: 2

  "#sound-dai-cells":
    const: 0

required:
  - compatible

Annotation

Implementation Notes