Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.12 2025-06-12T21:56:42+00:00 2025-06-12T21:56:42+00:00 Remo Senekowitsch remo@buenzli.dev 2025-06-11T10:29:00+00:00 urn:sha1:a2801affa7103862d549050401a9f53b3365fca4 Accessing device properties is currently done via methods on `Device` itself, using bindings to device_property_* functions. This is sufficient for the existing method property_present. However, it's not sufficient for other device properties we want to access. For example, iterating over child nodes of a device will yield a fwnode_handle. That's not a device, so it wouldn't be possible to read the properties of that child node. Thus, we need an abstraction over fwnode_handle and methods for reading its properties. Add a struct FwNode which abstracts over the C struct fwnode_handle. Implement its reference counting analogous to other Rust abstractions over reference-counted C structs. Subsequent patches will add functionality to access FwNode and read properties with it. Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-2-remo@buenzli.dev [ Add temporary #[expect(dead_code)] to avoid a warning. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>