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| Filename | Latest commit message | Latest commit date |
|---|---|---|
f82d15e223
Regarding the .request case: The consumer might be interested in taking
over the configured state from the boot loader. So the initially
configured state should be retained.
For the free case the PWM consumer is responsible for disabling the PWM
before calling pwm_put() and there are three subcases to consider:
a) The PWM is already off. Then there is no gain in disabling the PWM
once more.
b) The PWM is still running and there is a good reason for that. (Not
sure this is a valid case, I cannot imagine such a good reason.)
Then it is counterproductive to disable the PWM.
c) The PWM is still running because the consumer failed to disable the
PWM. Then the consumer needs fixing and there is little incentive to
paper over the problem in the backend driver.
This aligns the lpc18xx-sct driver to the other PWM drivers that also
don't reconfigure the hardware in .request and .free.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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| kernel | ||
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| sound | ||
| tools | ||
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| README | ||
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 Restructured Text 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.