mirror of
https://github.com/torvalds/linux.git
synced 2025-12-07 20:06:24 +00:00
ca4edafa14
Currently crtc_vblank_start is assumed to be the vblank_start for the fixed refresh rate case. That value can be different from the variable refresh rate case whenever always_use_vrr_tg()==false. On icl/tgl it's always different due to the extra vblank delay, and also on adl+ it could be different if we were to use an optimized guardband. So places where crtc_vblank_start is used to compute vblank length needs change so as to account for cases where vrr is enabled. Specifically with vrr.enable the effective vblank length is actually guardband. Add a helper to get the correct vblank length for both vrr and fixed refresh rate cases. Use this helper where vblank_start is used to compute the vblank length. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/20251016055415.2101347-5-ankit.k.nautiyal@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 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.