linux-kernel - Re: [PATCH v10 2/8] property: Add functions to iterate named child

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Message-ID: <Z_fssEg3QZXyaTzx@kekkonen.localdomain>
Date: Thu, 10 Apr 2025 16:07:12 +0000
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Matti Vaittinen <mazziesaccount@...il.com>
Cc: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Daniel Scally <djrscally@...il.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>, Nuno Sa <nuno.sa@...log.com>,
	David Lechner <dlechner@...libre.com>,
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	Olivier Moysan <olivier.moysan@...s.st.com>,
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	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	João Paulo Gonçalves <joao.goncalves@...adex.com>,
	Ramona Alexandra Nechita <ramona.nechita@...log.com>,
	linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH v10 2/8] property: Add functions to iterate named child

On Mon, Mar 24, 2025 at 09:12:50AM +0200, Matti Vaittinen wrote:
> There are a few use-cases where child nodes with a specific name need to
> be parsed. Code like:
> 
> fwnode_for_each_child_node()
> 	if (fwnode_name_eq())
> 		...
> 
> can be found from a various drivers/subsystems. Adding a macro for this
> can simplify things a bit.
> 
> In a few cases the data from the found nodes is later added to an array,
> which is allocated based on the number of found nodes. One example of
> such use is the IIO subsystem's ADC channel nodes, where the relevant
> nodes are named as channel[@N].
> 
> Add helpers for iterating and counting device's sub-nodes with certain
> name instead of open-coding this in every user.
> 
> Suggested-by: Jonathan Cameron <jic23@...nel.org>
> Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@...il.com>

Kiitos!

Acked-by: Sakari Ailus <sakari.ailus@...ux.intel.com>

-- 
Sakari Ailus