Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
Extension: .yaml
Size: 5290 bytes
Lines: 172
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/exynos5420.h
dt-bindings/interrupt-controller/arm-gic.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-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/samsung,exynos-dw-mshc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title:
  Samsung Exynos SoC specific extensions to the Synopsys Designware Mobile
  Storage Host Controller

maintainers:
  - Jaehoon Chung <jh80.chung@samsung.com>
  - Krzysztof Kozlowski <krzk@kernel.org>

properties:
  compatible:
    oneOf:
      - enum:
          - axis,artpec8-dw-mshc
          - samsung,exynos4210-dw-mshc
          - samsung,exynos4412-dw-mshc
          - samsung,exynos5250-dw-mshc
          - samsung,exynos5420-dw-mshc
          - samsung,exynos5420-dw-mshc-smu
          - samsung,exynos7-dw-mshc
          - samsung,exynos7-dw-mshc-smu
          - samsung,exynos7870-dw-mshc
          - samsung,exynos7870-dw-mshc-smu
      - items:
          - enum:
              - samsung,exynos5433-dw-mshc-smu
              - samsung,exynos7885-dw-mshc-smu
              - samsung,exynos850-dw-mshc-smu
              - samsung,exynos8890-dw-mshc-smu
              - samsung,exynos8895-dw-mshc-smu
          - const: samsung,exynos7-dw-mshc-smu

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 2
    description:
      Handle to "biu" and "ciu" clocks for the
      bus interface unit clock and the card interface unit clock.

  clock-names:
    items:
      - const: biu
      - const: ciu

  samsung,dw-mshc-ciu-div:
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0
    maximum: 7
    description:
      The divider value for the card interface unit (ciu) clock.

  samsung,dw-mshc-ddr-timing:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    items:
      - description: CIU clock phase shift value for tx mode
        minimum: 0
        maximum: 7
      - description: CIU clock phase shift value for rx mode
        minimum: 0
        maximum: 7

Annotation

Immediate include surface: `dt-bindings/clock/exynos5420.h`, `dt-bindings/interrupt-controller/arm-gic.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.