cf9cb35ff7
Implements the Waitqueue is created to wait for CP_IRQ Signaling the CP_IRQ arrival through atomic variable. For applicable DP HDCP2.2 msgs read wait for CP_IRQ. As per HDCP2.2 spec "HDCP Transmitters must process CP_IRQ interrupts when they are received from HDCP Receivers" Without CP_IRQ processing, DP HDCP2.2 H_Prime msg was getting corrupted while reading it based on corresponding status bit. This creates the random failures in reading the DP HDCP2.2 msgs. v2: CP_IRQ arrival is tracked based on the atomic val inc [daniel] Recording the reviewed-by Daniel from IRC. Signed-off-by: Ramalingam C <ramalingam.c@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1550338640-17470-16-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.