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Gamma lut programming can be programmed using DSB where bulk register programming can be done using indexed register write which takes number of data and the mmio offset to be written. Currently enabled for 12-bit gamma LUT which is enabled by default and later 8-bit/10-bit will be enabled in future based on need. v1: Initial version. v2: Directly call dsb-api at callsites. (Jani) v3: - modified the code as per single dsb instance per crtc. (Shashank) - Added dsb get/put call in platform specific load_lut hook. (Jani) - removed dsb pointer from dev_priv. (Jani) v4: simplified code by dropping ref-count implementation. (Shashank) Cc: Jani Nikula <jani.nikula@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Shashank Sharma <shashank.sharma@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20190920115930.27829-9-animesh.manna@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 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.