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e273454c50
The mipi_csis_device.powered flag only serves for the purpose of not accessing registers in mipi_csis_log_status() when the interface is not powered up. Instead of manually tracking the power state, rely on pm_runtime_get_if_in_use() to remove the 'powered' flag. Also remove the locking in the function as runtime_pm() is refcounted and there's no risk of the interface being powered down behind our backs. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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.