Michal Wilczynski d8046cd508 rust: pwm: Add complete abstraction layer ... Introduce a comprehensive abstraction layer for the PWM subsystem to enable writing drivers in Rust. Because `Device`, `Chip`, and `PwmOps` all refer to each other, they form a single, indivisible unit with circular dependencies. They are introduced together in this single commit to create a complete, compilable abstraction layer. The main components are: - Data Wrappers: Safe, idiomatic wrappers for core C types like `pwm_device`, and `pwm_chip`. - PwmOps Trait: An interface that drivers can implement to provide their hardware-specific logic, mirroring the C `pwm_ops` interface. - FFI VTable and Adapter: A bridge to connect the high-level PwmOps trait to the C kernel's pwm_ops vtable. - Allocation and Lifetime Management: A high-level `Chip::new()` API to safely allocate a chip and a `Registration` guard that integrates with `devres` to manage the chip's registration with the PWM core. An `AlwaysRefCounted` implementation and a custom release handler prevent memory leaks by managing the chip's lifetime and freeing driver data correctly. Reviewed-by: Danilo Krummrich <dakr@kernel.org> Reviewed-by: Elle Rhumsaa <elle@weathered-steel.dev> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Link: https://patch.msgid.link/20251016-rust-next-pwm-working-fan-for-sending-v16-3-a5df2405d2bd@samsung.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>		2025-11-07 10:03:55 +01:00
..
alloc	Summary of significant series in this pull request:	2025-10-02 18:18:33 -07:00
block	for-6.18/block-20250929	2025-10-02 10:16:56 -07:00
debugfs	rust: debugfs: Add support for scoped directories	2025-09-10 18:58:29 +02:00
device	rust: device: use kernel::{fmt,prelude::fmt!}	2025-09-16 09:26:59 +02:00
drm	drm next for 6.18-rc1	2025-10-02 12:47:25 -07:00
fs	Char/Misc/IIO/Binder changes for 6.18-rc1	2025-10-04 16:26:32 -07:00
io	rust: Add read_poll_timeout function	2025-08-21 21:09:48 +02:00
irq	rust: irq: add &Device<Bound> argument to irq callbacks	2025-08-12 20:33:33 +02:00
list	rust: list: remove nonexistent generic parameter in link	2025-07-20 19:29:19 +02:00
mm	rust: mm: update ARef and AlwaysRefCounted imports from sync::aref	2025-09-13 16:55:15 -07:00
net	Networking changes for 6.18.	2025-10-02 15:17:01 -07:00
pci	rust: pci: display symbolic PCI vendor names	2025-09-25 15:52:00 +02:00
sync	Rust changes for v6.18	2025-09-30 19:12:49 -07:00
time	rust: hrtimer: Add HrTimer::expires()	2025-09-04 16:54:39 +02:00
.gitignore	rust: Add warn_on macro	2025-07-23 02:05:58 +02:00
acpi.rs	rust: acpi: use core::ffi::CStr method names	2025-09-16 09:26:59 +02:00
alloc.rs	Summary of significant series in this pull request:	2025-10-02 18:18:33 -07:00
auxiliary.rs	Driver core changes for 6.18-rc1	2025-10-01 08:39:23 -07:00
bitmap.rs	rust: add find_bit_benchmark_rust module.	2025-09-22 15:52:44 -04:00
bits.rs	rust: bits: add support for bits/genmask macros	2025-07-19 23:18:18 +02:00
block.rs	rust: block: add block related constants	2025-09-02 05:23:56 -06:00
bug.rs	rust: Add warn_on macro	2025-07-23 02:05:58 +02:00
build_assert.rs	rust: add build_error! to the prelude	2025-01-10 00:19:09 +01:00
clk.rs	Rust changes for v6.17	2025-08-03 13:49:10 -07:00
configfs.rs	for-6.18/block-20250929	2025-10-02 10:16:56 -07:00
cpu.rs	rust: kernel: cpu: mark CpuId::current() inline	2025-09-14 23:58:45 +02:00
cpufreq.rs	Merge branch 'pm-cpufreq'	2025-10-07 12:31:46 +02:00
cpumask.rs	rust: cpumask: Mark CpumaskVar as transparent	2025-08-14 09:55:47 +05:30
cred.rs	Char/Misc/IIO/Binder changes for 6.18-rc1	2025-10-04 16:26:32 -07:00
debugfs.rs	rust: debugfs: Add support for scoped directories	2025-09-10 18:58:29 +02:00
device_id.rs	modpost: Add modname to mod_device_table alias	2025-09-24 09:10:45 -07:00
device.rs	Driver core changes for 6.18-rc1	2025-10-01 08:39:23 -07:00
devres.rs	drm next for 6.18-rc1	2025-10-02 12:47:25 -07:00
dma.rs	dma-mapping updates for Linux 6.18:	2025-10-03 17:41:12 -07:00
driver.rs	driver: rust: expand documentation for driver infrastructure	2025-08-12 15:23:49 +02:00
error.rs	rust: error: improve to_result documentation	2025-09-10 00:10:10 +02:00
faux.rs	rust: faux: fix C header link	2025-08-13 17:40:28 +02:00
firmware.rs	rust: firmware: use core::ffi::CStr method names	2025-09-16 09:26:59 +02:00
fmt.rs	rust: kernel: add fmt module	2025-07-21 01:16:35 +02:00
fs.rs	rust: fs: add Kiocb struct	2025-09-06 13:27:20 +02:00
generated_arch_reachable_asm.rs.S	rust: Add warn_on macro	2025-07-23 02:05:58 +02:00
generated_arch_static_branch_asm.rs.S	rust: jump_label: skip formatting generated file	2024-11-20 13:32:42 -05:00
generated_arch_warn_asm.rs.S	rust: Add warn_on macro	2025-07-23 02:05:58 +02:00
id_pool.rs	rust: add dynamic ID pool abstraction for bitmap	2025-09-22 15:52:44 -04:00
init.rs	Rust changes for v6.17	2025-08-03 13:49:10 -07:00
io.rs	rust: Add read_poll_timeout function	2025-08-21 21:09:48 +02:00
ioctl.rs
iov.rs	rust: iov: add iov_iter abstractions for ITER_DEST	2025-09-06 13:27:20 +02:00
irq.rs	rust: irq: add support for threaded IRQs and handlers	2025-08-12 20:22:09 +02:00
jump_label.rs	rust: jump_label: skip formatting generated file	2024-11-20 13:32:42 -05:00
kunit.rs	linux_kselftest-kunit-6.18-rc1	2025-10-01 19:15:11 -07:00
lib.rs	rust: pwm: Add Kconfig and basic data structures	2025-11-07 10:03:54 +01:00
list.rs	rust: list: Add an example for ListLinksSelfPtr usage	2025-09-15 01:10:23 +02:00
maple_tree.rs	rust: maple_tree: add MapleTreeAlloc	2025-09-21 14:22:19 -07:00
miscdevice.rs	Char/Misc/IIO/Binder changes for 6.18-rc1	2025-10-04 16:26:32 -07:00
mm.rs	rust: mm: update ARef and AlwaysRefCounted imports from sync::aref	2025-09-13 16:55:15 -07:00
net.rs
of.rs	rust: of: use core::ffi::CStr method names	2025-09-16 09:26:59 +02:00
opp.rs	Merge branches 'pm-em', 'pm-opp' and 'pm-devfreq'	2025-09-29 12:30:44 +02:00
page.rs	Char/Misc/IIO/Binder changes for 6.18-rc1	2025-10-04 16:26:32 -07:00
pci.rs	rust: pci: fix incorrect platform reference in PCI driver probe doc comment	2025-09-17 12:51:13 +02:00
pid_namespace.rs	rust: pid_namespace: update AlwaysRefCounted imports from sync::aref	2025-08-19 13:08:41 +02:00
platform.rs	rust: driver-core: Update ARef and AlwaysRefCounted imports from sync::aref	2025-08-15 22:34:41 +02:00
prelude.rs	rust: prelude: re-export core::mem::{align,size}_of{,_val}	2025-09-08 00:11:19 +02:00
print.rs	rust: use kernel::{fmt,prelude::fmt!}	2025-07-21 01:16:35 +02:00
processor.rs	rust: Add cpu_relax() helper	2025-08-21 16:58:07 +02:00
ptr.rs	rust: add Alignment type	2025-09-22 23:55:41 +02:00
pwm.rs	rust: pwm: Add complete abstraction layer	2025-11-07 10:03:55 +01:00
rbtree.rs	rust: rbtree: simplify finding current in remove_current	2025-07-14 23:53:35 +02:00
regulator.rs	rust: regulator: add devm_enable and devm_enable_optional	2025-09-10 21:02:16 +01:00
revocable.rs	Rust changes for v6.17	2025-08-03 13:49:10 -07:00
scatterlist.rs	rust: scatterlist: Add abstraction for sg_table	2025-09-04 23:33:50 +02:00
security.rs	rust_binder: add Rust Binder driver	2025-09-19 09:40:46 +02:00
seq_file.rs	rust: seq_file: use kernel::{fmt,prelude::fmt!}	2025-09-16 09:26:59 +02:00
sizes.rs	rust: sizes: add constants up to SZ_2G	2025-06-23 18:12:30 +02:00
static_assert.rs	rust: use absolute paths in macros referencing core and kernel	2025-05-23 00:12:14 +02:00
std_vendor.rs	rust: convert raw URLs to Markdown autolinks in comments	2025-05-12 00:20:25 +02:00
str.rs	rust: block: use NullTerminatedFormatter	2025-09-02 05:23:56 -06:00
sync.rs	rust: implement kernel::sync::Refcount	2025-09-15 09:38:35 +02:00
task.rs	rust: task: update ARef and AlwaysRefCounted imports from sync::aref	2025-09-08 00:11:19 +02:00
time.rs	rust: time: Implement basic arithmetic operations for Delta	2025-09-04 16:56:48 +02:00
tracepoint.rs
transmute.rs	rust: transmute: add from_bytes_copy method to FromBytes trait	2025-08-28 22:31:17 +09:00
types.rs	Rust changes for v6.17	2025-08-03 13:49:10 -07:00
uaccess.rs	rust: uaccess: use newtype for user pointers	2025-07-14 23:52:45 +02:00
usb.rs	rust: usb: keep usb::Device private for now	2025-09-26 08:09:08 +02:00
workqueue.rs	rust: pin-init: add pin projections to #[pin_data]	2025-09-11 23:26:20 +02:00
xarray.rs	rust: types: add FOREIGN_ALIGN to ForeignOwnable	2025-07-14 23:55:24 +02:00