Documentation/devicetree/bindings/spi/samsung,spi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/samsung,spi.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/spi/samsung,spi.yaml
Extension: .yaml
Size: 5068 bytes
Lines: 195
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.

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

Dependency Surface

dt-bindings/clock/exynos5433.h
dt-bindings/clock/samsung,s2mps11.h
dt-bindings/interrupt-controller/arm-gic.h
dt-bindings/gpio/gpio.h

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

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

title: Samsung S3C/S5P/Exynos SoC SPI controller

maintainers:
  - Krzysztof Kozlowski <krzk@kernel.org>

description:
  All the SPI controller nodes should be represented in the aliases node using
  the following format 'spi{n}' where n is a unique number for the alias.

properties:
  compatible:
    oneOf:
      - enum:
          - google,gs101-spi
          - samsung,s3c6410-spi
          - samsung,s5pv210-spi # for S5PV210 and S5PC110
          - samsung,exynos4210-spi
          - samsung,exynos5433-spi
          - samsung,exynos850-spi
          - samsung,exynosautov9-spi
          - tesla,fsd-spi
      - items:
          - enum:
              - samsung,exynos8895-spi
              - samsung,exynosautov920-spi
          - const: samsung,exynos850-spi
      - const: samsung,exynos7-spi
        deprecated: true

  clocks:
    minItems: 2
    maxItems: 3

  clock-names:
    minItems: 2
    maxItems: 3

  dmas:
    minItems: 2
    maxItems: 2

  dma-names:
    items:
      - const: tx
      - const: rx

  interrupts:
    maxItems: 1

  no-cs-readback:
    description:
      The CS line is disconnected, therefore the device should not operate
      based on CS signalling.
    type: boolean

  num-cs:
    minimum: 1
    maximum: 4
    default: 1

  samsung,spi-src-clk:
    description:
      If the spi controller includes a internal clock mux to select the clock
      source for the spi bus clock, this property can be used to indicate the

Annotation

Immediate include surface: `dt-bindings/clock/exynos5433.h`, `dt-bindings/clock/samsung,s2mps11.h`, `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/gpio/gpio.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.