diff options
| author | Michal Wilczynski <m.wilczynski@samsung.com> | 2025-07-02 16:45:29 +0300 |
|---|---|---|
| committer | Uwe Kleine-König <ukleinek@kernel.org> | 2025-07-07 09:39:36 +0300 |
| commit | edd3bcb1801e1bb98f4f81485140e18c86406ced (patch) | |
| tree | 840f0fe4e42b85d175f131c24e43443b5b8de120 /include | |
| parent | 4cd2f417a0acdced4335fa19dc75b3a80941d60d (diff) | |
| download | linux-edd3bcb1801e1bb98f4f81485140e18c86406ced.tar.xz | |
pwm: Expose PWM_WFHWSIZE in public header
The WFHWSIZE constant defines the maximum size for the hardware-specific
waveform representation buffer. It is currently local to
drivers/pwm/core.c, which makes it inaccessible to external tools like
bindgen.
Move the constant to include/linux/pwm.h to make it part of the public
API. As part of this change, rename it to PWM_WFHWSIZE to follow
standard kernel conventions for namespacing macros in public headers.
This allows bindgen to automatically generate a corresponding constant
for the Rust PWM abstractions, ensuring the value remains synchronized
between the C core and Rust code and preventing future maintenance
issues.
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
Link: https://lore.kernel.org/r/20250702-rust-next-pwm-working-fan-for-sending-v7-1-67ef39ff1d29@samsung.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pwm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 2492c91452f9..8cafc483db53 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -274,6 +274,8 @@ struct pwm_capture { unsigned int duty_cycle; }; +#define PWM_WFHWSIZE 20 + /** * struct pwm_ops - PWM controller operations * @request: optional hook for requesting a PWM |