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Currently crtc_state_is_legacy_gamma() has a very specific set of conditions, not all of which are actually necessary. Also when we detect those conditions check_luts() just skips all the checks. That will no longer work for glk soon when we'll start to use the hw degamma LUT in place of the hw gamma LUT for YCbCr output. So let's rework the logic to only really consider whether the user provided gamma_lut is one that matches the hw legacy LUT capabilities or not. We'll need to reject C8+degamma on ivb+ since the presence of degamma_lut would either mean we have to really use the LUT for degamma as opposed to C8 palette, or we have to enable split gamma mode which also can't work as the C8 palette. Otherwise this will now cause the legacy LUT to go through the regular lut checks as well. As a side effect we also start to allow the use of the legacy LUT with CTM, but that is perfectly fine as far a the hardware is concerned. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221114153732.11773-17-ville.syrjala@linux.intel.com Reviewed-by: Uma Shankar <uma.shankar@intel.com> |
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| .clang-format | ||
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| README | ||
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.