[v4,0/7] dt-bindings: mfd: syscon: Document more compatibles and require simpe-mfd description

Message

Krzysztof Kozlowski June 27, 2024, 10:32 a.m. UTC

Hi,

Dependency
==========
Rebased on Lee's MFD tree, because dependency is there already:
https://lore.kernel.org/all/[e-mail]/

Merging
=======
Preferrably everything via MFD tree (file/context dependencies).

Changes in v4
=============
- Rebase - syscon.yaml got new compatible ti,am62-opp-efuse-table
- Link to v3: https://lore.kernel.org/r/[e-mail]

Changes in v3
=============
- Add tags
- intel,lgm-syscon: change maintainers (email bounce)
- syscon/Split: drop unneeded |, use const instead of enum in select:
- Link to v2: https://lore.kernel.org/r/[e-mail]

Changes in v2
=============
- Add acks
- lgm-syscon: add ranges to binding and example
- syscon.yaml: add big select with all compatibles for older dtschema
- Link to v1: https://lore.kernel.org/r/[e-mail]

Description/problem
===================
Simple syscon nodes can be documented in common syscon.yaml, however
devices with simple-mfd compatible, thus some children, should have
their own schema listing these children.  Such listing makes the binding
specific, allows better validation (so the incorrect child would not
appear in the simple-mfd node) and actually enforces repeated rule for
simple-mfd devices:

  "simple-mfd" is only for simple devices, where the children do not
  depend on the parent.

Currently the syscon+simple-mfd binding is quite broad and allows
any child or property, thus above rule cannot be enforced.

Solution
========
1. Split the syscon.yaml binding into common syscon properties, used
   potentially by many bindings, and only simple syscon devices (NO
   simple-mfd!).
2. Move some known simple-mfd bindings from syscon.yaml to dedicated
   files.

This patchset might introduce new dtbs_check warnings for devices having
simple-mfd and being part of syscon.yaml previously. I fixed some of
them, but probably not all.

Best regards,
Krzysztof

To: Lee Jones <[e-mail]>
To: Rob Herring <[e-mail]>
To: Krzysztof Kozlowski <[e-mail]>
To: Conor Dooley <[e-mail]>
To: Lars Povlsen <[e-mail]>
To: Steen Hegelund <[e-mail]>
To: Daniel Machon <[e-mail]>
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To: Nishanth Menon <[e-mail]>
To: Matthias Brugger <[e-mail]>
To: AngeloGioacchino Del Regno <[e-mail]>
Cc: [e-mail]
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---
Krzysztof Kozlowski (7):
      dt-bindings: mfd: syscon: Drop hwlocks
      dt-bindings: soc: sprd: sc9863a-glbregs: Document SC9863A syscon
      dt-bindings: soc: intel: lgm-syscon: Move to dedicated schema
      dt-bindings: soc: microchip: sparx5-cpu-syscon: Move to dedicated schema
      dt-bindings: soc: ti: am654-serdes-ctrl: Move to dedicated schema
      dt-bindings: mfd: syscon: Split and enforce documenting MFD children
      dt-bindings: mfd: syscon: Add APM poweroff mailbox

 .../devicetree/bindings/mfd/syscon-common.yaml     |  71 +++++
 Documentation/devicetree/bindings/mfd/syscon.yaml  | 309 ++++++++++++---------
 .../bindings/soc/intel/intel,lgm-syscon.yaml       |  57 ++++
 .../soc/microchip/microchip,sparx5-cpu-syscon.yaml |  49 ++++
 .../bindings/soc/sprd/sprd,sc9863a-glbregs.yaml    |  55 ++++
 .../bindings/soc/ti/ti,am654-serdes-ctrl.yaml      |  42 +++
 6 files changed, 459 insertions(+), 124 deletions(-)
---
base-commit: c41503b65ef7b85189c39f6a6038feb7c93eac2f
change-id: 20240517-dt-bindings-mfd-syscon-split-37e23996523d

Best regards,

Comments

Lee Jones June 28, 2024, 2:30 p.m. UTC | #1

On Thu, 27 Jun 2024 12:32:16 +0200, Krzysztof Kozlowski wrote:
> Dependency
> ==========
> Rebased on Lee's MFD tree, because dependency is there already:
> https://lore.kernel.org/all/[e-mail]/
> 
> Merging
> =======
> Preferrably everything via MFD tree (file/context dependencies).
> 
> [...]

Applied, thanks!

[1/7] dt-bindings: mfd: syscon: Drop hwlocks
      commit: 9e1d9c508ad657b8ca01d5faa5ad6412b5ed6848
[2/7] dt-bindings: soc: sprd: sc9863a-glbregs: Document SC9863A syscon
      commit: 375f375ce42f8700ebafb2271a826deb37355b9d
[3/7] dt-bindings: soc: intel: lgm-syscon: Move to dedicated schema
      commit: 473c6ff312f9cc7d69791843de42f090e84e0555
[4/7] dt-bindings: soc: microchip: sparx5-cpu-syscon: Move to dedicated schema
      commit: 4a3b558d40d18dbad4c6a58093e80b137ffec5ed
[5/7] dt-bindings: soc: ti: am654-serdes-ctrl: Move to dedicated schema
      commit: 662ffb5b0edcbc902bb3185512aa972e6b9e905b
[6/7] dt-bindings: mfd: syscon: Split and enforce documenting MFD children
      commit: 91d5927467b5dc7b87c0283721b3e0e64ed84a77
[7/7] dt-bindings: mfd: syscon: Add APM poweroff mailbox
      commit: 33c0e553c8c3cee355ea7bcd358d653b0f022b2d

--
Lee Jones [李琼斯]