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Gustavo Sousa ff6f11afd7 drm/i915/dmc: Prepare to use unversioned paths
New DMC releases in linux-firmware will stop using version number in
blob filenames. This new convention provides the following benefits:

  1. It simplifies code maintenance, as new DMC releases for a platform
     using the new convention will always use the same filename for the
     blob.

  2. It allows DMC to be loaded even if the target system does not have
     the most recent firmware installed.

Prepare the driver by:

  - Using the new convention for DMC_PATH() and renaming the currently
    used one to make it clear it is for the legacy scheme.

  - Implementing a fallback mechanism for future transitions from
    versioned to unversioned paths so that we do not cause a regression
    for systems not having the most up-to-date linux-firmware files.

v2:
  - Keep using request_firmware() instead of firmware_request_nowarn().
    (Jani)
v3:
  - Keep current DMC paths instead of directly using unversioned ones,
    so that we do not disturb initrd generation.
    (Lucas, Rodrigo)

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230123182021.31239-2-gustavo.sousa@intel.com
History 2023-01-24 14:43:06 -05:00
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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.