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264b501bb4
Rust PWM drivers using the abstractions in `kernel/pwm.rs` typically call C functions (like `pwmchip_alloc`, `__pwmchip_add`, etc.) that are exported to the `PWM` C symbol namespace. With the introduction of `imports_ns` support in the `module!` macro, every PWM driver would need to manually include `imports_ns: ["PWM"]` in its module declaration. To simplify this for driver authors and ensure consistency, introduce a new helper macro `module_pwm_platform_driver!` in `pwm.rs`. This macro wraps the standard `module_platform_driver!`, forwards all user provided arguments using the `($($user_args:tt)*)` pattern, and automatically injects the `imports_ns: ["PWM"]` declaration. This follows the pattern used in other subsystems (e.g., `module_pci_driver!`) to provide specialized module registration helpers. It makes writing PWM drivers slightly simpler and less error prone regarding namespace imports. Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Reviewed-by: Elle Rhumsaa <elle@weathered-steel.dev> Link: https://patch.msgid.link/20251028-pwm_fixes-v1-2-25a532d31998@samsung.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.