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

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Message-ID: <20240304140647.GA148861-robh@kernel.org>
Date: Mon, 4 Mar 2024 08:06:47 -0600
From: Rob Herring <robh@...nel.org>
To: Saravana Kannan <saravanak@...gle.com>
Cc: 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>, kernel-team@...roid.com,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-efi@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v4 0/4] Add post-init-providers binding to improve
 suspend/resume stability

On Wed, Feb 21, 2024 at 07:46:18PM -0800, Saravana Kannan wrote:
> 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

Reviewed-by: Rob Herring <robh@...nel.org>

I'm assuming Greg takes this. You'll probably need to resend without the 
binding. Submit it to dtschema please.

Rob