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0140893299
The AMD HCI controller currently only supports PIO mode but exposes DMA rings to the OS, which leads to the controller being configured in DMA mode. To address this, add a quirk to avoid configuring the controller in DMA mode and default to PIO mode. Additionally, introduce a generic quirk infrastructure to the mipi-i3c-hci driver to facilitate seamless future quirk additions. Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Co-developed-by: Krishnamoorthi M <krishnamoorthi.m@amd.com> Signed-off-by: Krishnamoorthi M <krishnamoorthi.m@amd.com> Co-developed-by: Guruvendra Punugupati <Guruvendra.Punugupati@amd.com> Signed-off-by: Guruvendra Punugupati <Guruvendra.Punugupati@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Link: https://lore.kernel.org/r/20240829091713.736217-4-Shyam-sundar.S-k@amd.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.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 reStructuredText 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.