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There exists a property IN_FORMATS which exposes the plane supported modifiers/formats to the user. In some platforms when asynchronous flip are used all of modifiers/formats mentioned in IN_FORMATS are not supported. This patch adds a new plane property IN_FORMATS_ASYNC to expose the async flip supported modifiers/formats so that user can use this information ahead and do flip with unsupported formats/modifiers. This will save flip failures. Add a new function pointer similar to format_mod_supported specifically for asynchronous flip. v2: Remove async variable from drm_plane (Ville) v3: Add new function pointer for async (Ville) v5: Typo corrected in commit message & some correction in the kernel documentation. (Chaitanya) v7: Place IN_FORMATS_ASYNC next to IN_FORMATS (Ville) v8: replace uint32_t with u32 and uint64_t with u64 (Chaitanya) Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> Acked-by: Xaver Hugl <xaver.hugl@kde.org> Acked-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by: Naveen Kumar <naveen1.kumar@intel.com> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://lore.kernel.org/r/20250407-asyn-v13-1-b93ef83076c5@intel.com |
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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 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.