Re: linux-next: build warning after merge of the pwm tree

From: Uwe Kleine-König
Date: Thu Apr 17 2025 - 05:19:27 EST


hello,

On Thu, Apr 17, 2025 at 04:27:00PM +1000, Stephen Rothwell wrote:
> After merging the pwm tree, today's linux-next build (htmldocs) produced
> this warning:
>
> ocumentation/driver-api/miscellaneous:47: drivers/pwm/core.c:232: WARNING: Inline emphasis start-string without end-string. [docutils]
>
> Introduced by commit
>
> bde5547f2e87 ("pwm: Better document return value of pwm_round_waveform_might_sleep()")

I squashed a fix into that commit:

$ git range-diff bde5547f2e87...fbf1880bada0
1: bde5547f2e87 ! 1: fbf1880bada0 pwm: Better document return value of pwm_round_waveform_might_sleep()
@@ Commit message

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/db84abf1e82e4498fc0e7c318d2673771d0039fe.1744120697.git.ukleinek@xxxxxxxxxx
+ [ukleinek: Fix a rst formatting issue reported by Stephen Rothwell]
Signed-off-by: Uwe Kleine-König <ukleinek@xxxxxxxxxx>

## drivers/pwm/core.c ##
@@ drivers/pwm/core.c: static int __pwm_write_waveform(struct pwm_chip *chip, struc
*
- * Returns 0 on success, 1 if there is no valid hardware configuration matching
- * the input waveform under the PWM rounding rules or a negative errno.
-+ * Usually all values passed in *wf are rounded down to the nearest possible
++ * Usually all values passed in @wf are rounded down to the nearest possible
+ * value (in the order period_length_ns, duty_length_ns and then
+ * duty_offset_ns). Only if this isn't possible, a value might grow.
+ *

Thanks for the report (and all the work you do to notice these issues)!

Best regards
Uwe

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