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When the LCDIF block signals a panic condition due to the display FIFO falling below the threshold, the priority at the NoC level is boosted to the value set in the LCDIF_ARCACHE_CTRL register of i.MX8MP mediamix blk-ctrl. Same as all other blk-ctrl registers this register is reset when the domain is powered down. Initialize the panic hurry levels for both LCIF interfaces to the maximium priority (same as downstream TF-A and proven to work with the other priorities set in the interconnect driver) when coming back from power down. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@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.