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[ Upstream commit 2f1361f862a68063f37362f1beb400e78e289581 ] There is no CSID TPG on some SoCs, so the v4l2 ctrl in CSID driver shouldn't be registered. Checking the supported TPG modes to indicate if the TPG hardware exists or not and only registering v4l2 ctrl for CSID only when the TPG hardware is present. Signed-off-by: Depeng Shao <quic_depengs@quicinc.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Sasha Levin <sashal@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.