[PATCH 0/2] rust: Add abstractions for applying devicetree overlays

[Ayush Singh <ayush@beagleboard.org>]

The following patch series adds abstractions required to apply
devicetree overlays from Rust code. To see how the bindings look in
usage, see my working tree [0] for a connector driver  I am working on.

Open Questions
***************

1. Should `DeviceNode` be Opaque?

Since this structure is never read/constructed from Rust side, maybe it's
better off as Opaque.

2. Removing overlay on drop

I my usecase (see [0]), I will only ever have 1 active overlay in the
driver, which I will be removing dynamically. So removing overlay on
drop works for it. But maybe there are some usecases I am missing.

3. Only enable bindings when CONFIG_OF_OVERLAY is set?

The kernel header currently seems to provide blank implementations of
these methods when `CONFIG_OF_OVERLAY` is not enabled. But I am not sure
what is rust-for-linux policy here.

[0]: https://github.com/Ayush1325/linux/commits/b4/beagle-cape/

Signed-off-by: Ayush Singh <ayush@beagleboard.org>
---
Ayush Singh (2):
      rust: kernel: of: Add DeviceNode abstraction
      rust: kernel: of: Add overlay id abstraction

 rust/bindings/bindings_helper.h |  1 +
 rust/kernel/device.rs           |  5 ++++
 rust/kernel/of.rs               | 53 ++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 58 insertions(+), 1 deletion(-)
---
base-commit: bc8aa6cdadcc00862f2b5720e5de2e17f696a081
change-id: 20250417-rust-overlay-abs-36aac8b9752a

Best regards,
-- 
Ayush Singh <ayush@beagleboard.org>