pwm: Document signal polarity convention

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The PWM subsystem defines normal and inversed PWM signal polarity in an
unambiguous way. In addition to the documentation in the linux/pwm.h
header file, add a paragraph in Documentation/pwm.txt because people are
likely to look there for guidance.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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Thierry Reding 2014-04-07 15:45:30 +02:00

parent c9eaa447e7

commit 3e5314d3c8

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Documentation/pwm.txt

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