linux-kernel - Re: [PATCH v7 0/9] More Rust bindings for device property reads

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Message-ID: <b2225fa4-ffdb-4156-afb9-561484d6d78e@de.bosch.com>
Date: Tue, 3 Jun 2025 07:10:49 +0200
From: Dirk Behme <dirk.behme@...bosch.com>
To: Remo Senekowitsch <remo@...nzli.dev>, Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>, Miguel Ojeda <ojeda@...nel.org>, Alex
 Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, Gary Guo
	<gary@...yguo.net>, Björn Roy Baron
	<bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, "Andreas
 Hindborg" <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, "Trevor
 Gross" <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, "Greg
 Kroah-Hartman" <gregkh@...uxfoundation.org>, "Rafael J. Wysocki"
	<rafael@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH v7 0/9] More Rust bindings for device property reads

Hi Remo,

On 30/05/2025 21:28, Remo Senekowitsch wrote:
> changes in v7:
> * Fix a typo in a commit message.
> * Fix bug in `FwNode::display_path`. I took a slightly different
>   approach than the one suggested, using `Either` to handle the
>   owned and borrowed case. That also removes the conditional
>   `fwnode_handle_put` at the end.
> * Move `FwNode::from_raw` to the commit which first introduces the
>   `FwNode` abstraction. It is needed in an earlier commit than before
>   and I think it fits better there.
> 
> Best regards,
> Remo
> 
> Remo Senekowitsch (9):
>   rust: device: Create FwNode abstraction for accessing device
>     properties
>   rust: device: Enable accessing the FwNode of a Device
>   rust: device: Add property_present() to FwNode
>   rust: device: Enable printing fwnode name and path
>   rust: device: Introduce PropertyGuard
>   rust: device: Implement accessors for firmware properties
>   rust: device: Add child accessor and iterator
>   rust: device: Add property_get_reference_args
>   samples: rust: platform: Add property read examples
> 
>  MAINTAINERS                                  |   1 +
>  drivers/of/unittest-data/tests-platform.dtsi |   3 +
>  rust/helpers/helpers.c                       |   1 +
>  rust/helpers/property.c                      |   8 +
>  rust/kernel/device.rs                        |  17 +
>  rust/kernel/device/property.rs               | 590 +++++++++++++++++++
>  samples/rust/rust_driver_platform.rs         |  60 +-
>  7 files changed, 679 insertions(+), 1 deletion(-)
>  create mode 100644 rust/helpers/property.c
>  create mode 100644 rust/kernel/device/property.rs
I have tested this series with x86/Qemu running the sample. And the same
on real custom ARM64 hardware. Additionally, I ported a custom driver on
ARM64 to use this (well, it just uses the trivial
property_read().required_by()). So if it helps

Tested-by: Dirk Behme <dirk.behme@...bosch.com>

for the whole series.

Btw, many thanks for working on this!

Dirk