Documentation/devicetree/bindings/mfd/syscon.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/mfd/syscon.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/mfd/syscon.yaml
Extension
.yaml
Size
9717 bytes
Lines
287
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
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/syscon.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: System Controller Devices

description: |
  System controller node represents a register region containing a set
  of miscellaneous registers. The registers are not cohesive enough to
  represent as any specific type of device. The typical use-case is
  for some other node's driver, or platform-specific code, to acquire
  a reference to the syscon node (e.g. by phandle, node path, or
  search using a specific compatible value), interrogate the node (or
  associated OS driver) to determine the location of the registers,
  and access the registers directly.

maintainers:
  - Lee Jones <lee@kernel.org>

# Need a select with all compatibles listed for compatibility with older
# dtschema (<2024.02), so this will not be selected for other schemas having
# syscon fallback.
select:
  properties:
    compatible:
      contains:
        enum:
          - airoha,en7581-pbus-csr
          - al,alpine-sysfabric-service
          - allwinner,sun8i-a83t-system-controller
          - allwinner,sun8i-h3-system-controller
          - allwinner,sun8i-v3s-system-controller
          - allwinner,sun50i-a64-system-controller
          - altr,l3regs
          - altr,sdr-ctl
          - amd,pensando-elba-syscon
          - amlogic,meson-mx-assist
          - amlogic,meson-mx-bootrom
          - amlogic,meson8-analog-top
          - amlogic,meson8b-analog-top
          - amlogic,meson8-pmu
          - amlogic,meson8b-pmu
          - apm,merlin-poweroff-mailbox
          - apm,mustang-poweroff-mailbox
          - apm,xgene-csw
          - apm,xgene-efuse
          - apm,xgene-mcb
          - apm,xgene-rb
          - apm,xgene-scu
          - atmel,sama5d2-sfrbu
          - atmel,sama5d3-nfc-io
          - atmel,sama5d3-sfrbu
          - atmel,sama5d4-sfrbu
          - axis,artpec6-syscon
          - brcm,cru-clkset
          - brcm,sr-cdru
          - brcm,sr-mhb
          - cirrus,ep7209-syscon1
          - cirrus,ep7209-syscon2
          - cirrus,ep7209-syscon3
          - cnxt,cx92755-uc
          - econet,en751221-chip-scu
          - freecom,fsg-cs2-system-controller
          - fsl,imx93-aonmix-ns-syscfg
          - fsl,imx93-wakeupmix-syscfg
          - fsl,ls1088a-reset
          - fsl,vf610-anatop
          - fsl,vf610-mscm-cpucfg

Annotation

Implementation Notes