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DP Specification for DP2.0 to HDMI2.1 Pcon specifies support for conversion of colorspace from RGB to YCbCr. https://groups.vesa.org/wg/DP/document/previewpdf/15651 This patch adds the relavant registers and helper functions to get the capability and set the color conversion bits for rgb->ycbcr conversion through PCON. v2: As suggested in review comments: -Fixed bug in the check condition in a drm_helper as reported by Dan Carpenter and Kernel test robot. (Dan Carepenter) -Modified the color-conversion cap helper function, to accommodate BT709 and BT2020 colorspace. (Uma Shankar) -Added spec details for the new cap for color conversion. (Uma Shankar) Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201218103723.30844-8-ankit.k.nautiyal@intel.com |
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