linux-kernel - [PATCH v4 0/4] Add post-init-providers binding to improve suspend/resume stability

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Message-Id: <20240222034624.2970024-1-saravanak@google.com>
Date: Wed, 21 Feb 2024 19:46:18 -0800
From: Saravana Kannan <saravanak@...gle.com>
To: Saravana Kannan <saravanak@...gle.com>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Ard Biesheuvel <ardb@...nel.org>, Frank Rowand <frowand.list@...il.com>, 
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Daniel Scally <djrscally@...il.com>, 
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
	Sakari Ailus <sakari.ailus@...ux.intel.com>, Len Brown <lenb@...nel.org>
Cc: kernel-team@...roid.com, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-efi@...r.kernel.org, 
	linux-acpi@...r.kernel.org
Subject: [PATCH v4 0/4] Add post-init-providers binding to improve
 suspend/resume stability

This patch series adds a "post-init-providers" device tree binding that
can be used to break dependency cycles in device tree and enforce a more
determinstic probe/suspend/resume order. This will also improve the
stability of global async probing and async suspend/resume and allow us
to enable them more easily. Yet another step away from playing initcall
chicken with probing and step towards fully async probing and
suspend/resume.

Patch 3 (the binding documentation) provides a lot more details and
examples.

v3->v4:
- Fixed MAINTAINERS file to go with the file rename.

v2->v3:
- Changes doc/code from "post-init-supplier" to "post-init-providers"
- Fixed some wording that was ambiguous for Conor.
- Fixed indentation, additionalProperies and white space issues in the
  yaml syntax.
- Fixed syntax errors in the example.

v1->v2:
- Addressed Documentation/commit text errors pointed out by Rob
- Reordered MAINTAINERS chunk as pointed out by Krzysztof

Saravana Kannan (4):
  driver core: Adds flags param to fwnode_link_add()
  driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link
  dt-bindings: Add post-init-providers property
  of: property: fw_devlink: Add support for "post-init-providers"
    property

 .../bindings/post-init-providers.yaml         | 105 ++++++++++++++++++
 MAINTAINERS                                   |  13 ++-
 drivers/base/core.c                           |  14 ++-
 drivers/firmware/efi/sysfb_efi.c              |   2 +-
 drivers/of/property.c                         |  17 ++-
 include/linux/fwnode.h                        |   5 +-
 6 files changed, 142 insertions(+), 14 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/post-init-providers.yaml

-- 
2.44.0.rc0.258.g7320e95886-goog