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[Why] HDCP 2.2 uses type0 and type1 content type. This is passed to the receiver to stream the proper content. For example, in a MST case if the main device is HDCP2.2 capable but the secondary device is only 1.4 capabale we can use Type0 Type0 content: use HDCP 1.4 or HDCP2.2 type0 Type1 content: Only use HDCP 2.2 type1 [How] We use the "hdcp content type" property in drm. We use the disable_type1 flag in hdcp module to select the type based on the properties. For updating the property we use the same logic as 1.4, but now we consider content_type as well and update the property if the requirements are met Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.