linux-kernel - Re: [PATCH v7 1/5] driver core: Introduce device_{add,remove}_of

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Message-ID: <2025021934-backache-hamlet-d940@gregkh>
Date: Wed, 19 Feb 2025 09:27:42 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Herve Codina <herve.codina@...tlin.com>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>, Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>, Lizhi Hou <lizhi.hou@....com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-pci@...r.kernel.org,
	Allan Nielsen <allan.nielsen@...rochip.com>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	Steen Hegelund <steen.hegelund@...rochip.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v7 1/5] driver core: Introduce
 device_{add,remove}_of_node()

On Tue, Feb 04, 2025 at 08:34:56AM +0100, Herve Codina wrote:
> An of_node can be set to a device using device_set_node().
> This function cannot prevent any of_node and/or fwnode overwrites.
> 
> When adding an of_node on an already present device, the following
> operations need to be done:
> - Attach the of_node if no of_node were already attached
> - Attach the of_node as a fwnode if no fwnode were already attached
> 
> This is the purpose of device_add_of_node().
> device_remove_of_node() reverts the operations done by
> device_add_of_node().
> 
> Signed-off-by: Herve Codina <herve.codina@...tlin.com>
> ---
>  drivers/base/core.c    | 61 ++++++++++++++++++++++++++++++++++++++++++
>  include/linux/device.h |  2 ++
>  2 files changed, 63 insertions(+)
> 

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>