Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
Extension
.yaml
Size
6857 bytes
Lines
291
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

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Annotated Snippet

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

title: Qualcomm Technologies Inc. LPASS CPU dai driver

maintainers:
  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
  - Rohit kumar <quic_rohkumar@quicinc.com>

description: |
  Qualcomm Technologies Inc. SOC Low-Power Audio SubSystem (LPASS) that consist
  of MI2S interface for audio data transfer on external codecs. LPASS cpu driver
  is a module to configure Low-Power Audio Interface(LPAIF) core registers
  across different IP versions.

properties:
  compatible:
    enum:
      - qcom,lpass-cpu
      - qcom,apq8016-lpass-cpu
      - qcom,sc7180-lpass-cpu
      - qcom,sc7280-lpass-cpu

  reg:
    minItems: 1
    maxItems: 6
    description: LPAIF core registers

  reg-names:
    minItems: 1
    maxItems: 6

  clocks:
    minItems: 3
    maxItems: 10

  clock-names:
    minItems: 1
    maxItems: 10

  interrupts:
    minItems: 1
    maxItems: 4
    description: LPAIF DMA buffer interrupt

  interrupt-names:
    minItems: 1
    maxItems: 4

  qcom,adsp:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: Phandle for the audio DSP node

  iommus:
    minItems: 2
    maxItems: 3
    description: Phandle to apps_smmu node with sid mask

  power-domains:
    maxItems: 1

  power-domain-names:
    maxItems: 1

  required-opps:
    maxItems: 1

Annotation

Implementation Notes