omapdrm supports gamma via GAMMA_LUT property. However, the HW we have is: gamma -> ctm -> out instead of what the model DRM framework uses: ctm -> gamma -> out As the following patches add CTM support for omapdrm, lets first fix the gamma. This patch changes the property from GAMMA_LUT to DEGAMMA_LUT, and thus we will have: degamma -> ctm -> out and the legacy ioctl will continue working as before. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201103080310.164453-3-tomi.valkeinen@ti.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.
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