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"hdcp_encrypted" flag is defined to denote the HDCP1.4 encryption status. This SW tracking is used to determine the need for real hdcp1.4 disable and hdcp_check_link upon CP_IRQ. On CP_IRQ we filter the CP_IRQ related to the states like Link failure and reauthentication req etc and handle them in hdcp_check_link. CP_IRQ corresponding to the authentication msg availability are ignored. WARN_ON is added for the abrupt stop of HDCP encryption of a port. v2: bool is used in struct for the cleaner coding. [Daniel] check_link work_fn is scheduled for cp_irq handling [Daniel] v3: rebased. Signed-off-by: Ramalingam C <ramalingam.c@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1550338640-17470-6-git-send-email-ramalingam.c@intel.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.