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092d83e3f5
In the not-enabled -> enabled path pwm_lpss_apply() needs to get a runtime-pm reference; and then on any errors it needs to release it again. This leads to somewhat hard to read code. This commit introduces a new pwm_lpss_prepare_enable() helper and moves all the steps necessary for the not-enabled -> enabled transition there, so that we can error check the entire transition in a single place and only have one pm_runtime_put() on failure call site. While working on this I noticed that the enabled -> enabled (update settings) path was quite similar, so I've added an enable parameter to the new pwm_lpss_prepare_enable() helper, which allows using it in that path too. Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200903112337.4113-6-hdegoede@redhat.com
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.