linux-kernel - Re: [PATCH v1 0/4] rust: Add basic I2C driver abstractions

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Message-ID: <ca7b2f6e-1195-4c6f-b45d-799496277b31@gmail.com>
Date: Thu, 26 Jun 2025 18:47:11 +0100
From: Igor Korotin <igor.korotin.linux@...il.com>
To: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: 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>,
 Viresh Kumar <viresh.kumar@...aro.org>,
 Asahi Lina <lina+kernel@...hilina.net>,
 Wedson Almeida Filho <wedsonaf@...il.com>, Alex Hung <alex.hung@....com>,
 Tamir Duberstein <tamird@...il.com>,
 Xiangfei Ding <dingxiangfei2009@...il.com>, linux-kernel@...r.kernel.org,
 rust-for-linux@...r.kernel.org, linux-i2c@...r.kernel.org
Subject: Re: [PATCH v1 0/4] rust: Add basic I2C driver abstractions



On 6/26/25 18:33, Igor Korotin wrote:
> This patch series introduces basic Rust I2C driver abstractions 
> and optional ACPI match-table support and provides a sample driver 
> demonstrating both OF and ACPI binding
> 
> Currently Rust I2C abstractions support only Open Firmware OF device 
> matching. This series splits the work into four patches so that the 
> core abstractions and sample driver can land immediately while ACPI 
> integration may be reviewed once the ACPI macros are upstream
> 
> Changes include
>  - core I2C abstractions `i2c::Device` `i2c::Driver` `i2c::Adapter` 
>    built on `struct i2c_client` and `struct i2c_driver`
>  - a standalone Rust sample driver exercising Legacy I2C ID and OF ID
>    matching
>  - optional ACPI ID-table support in the `i2c::Driver` abstraction
>  - ACPI-enabled sample driver showing `kernel::acpi_device_table!` 
>    usage
> 
> This separation lets maintainers review and merge the non-ACPI portions
> immediately while patches 3 and 4 both depending on the ACPI 
> infrastructure can be queued once the ACPI macros are upstream
> 
> Patch series:
> 
> 1 rust: i2c: add basic I2C device and driver abstractions
> 2 samples: rust: add I2C sample driver (OF only)
> 3 rust: i2c: support ACPI match-table in driver abstractions
> Depends-on: 20250620152425.285683-1-igor.korotin.linux@...il.com
> 4 samples: rust: show ACPI ID-table in I2C sample driver
> Depends-on: 20250620152425.285683-1-igor.korotin.linux@...il.com
> 
> Igor Korotin (4):
>   rust: i2c: add basic I2C device and driver abstractions
>   samples: rust: add Rust I2C sample driver
>   rust: i2c: ACPI ID-table support for I2C abstractions
>   samples: rust: show ACPI ID-table in I2C sample driver
> 
>  MAINTAINERS                     |   3 +
>  rust/bindings/bindings_helper.h |   1 +
>  rust/helpers/helpers.c          |   1 +
>  rust/helpers/i2c.c              |  15 ++
>  rust/kernel/i2c.rs              | 386 ++++++++++++++++++++++++++++++++
>  rust/kernel/lib.rs              |   2 +
>  samples/rust/Kconfig            |  11 +
>  samples/rust/Makefile           |   1 +
>  samples/rust/rust_driver_i2c.rs |  69 ++++++
>  9 files changed, 489 insertions(+)
>  create mode 100644 rust/helpers/i2c.c
>  create mode 100644 rust/kernel/i2c.rs
>  create mode 100644 samples/rust/rust_driver_i2c.rs
> 
> 
> base-commit: 63dafeb392139b893a73b6331f347613f0929702

Please ignore. Was sent by mistake.

Thanks
Igor