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2aae393955
The set_fmt() subdev pad operation for this driver currently does not only do the driver internal format selection but also do the actual register setup. This doesn't work if the device power control via GPIO lines is enabled. Because the set_fmt() can be called when the device is placed into power down mode. First of all, this fix adds flag to keep track of whether the device starts streaming or not. Then, the set_fmt() postpones applying the actual register setup at this time. Instead the setup will be applied when the streaming is started. Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@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
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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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.