]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/i915/display: Let PCON convert from RGB to YCbCr if it can
authorAnkit Nautiyal <ankit.k.nautiyal@intel.com>
Fri, 18 Dec 2020 10:37:23 +0000 (16:07 +0530)
committerJani Nikula <jani.nikula@intel.com>
Tue, 22 Dec 2020 15:59:07 +0000 (17:59 +0200)
commit522508b665df3bbfdf40381d4e61777844b1703f
treefa8cdcdf06210a6d33406aae548346746e44f4f7
parent10fec80b48c5bf5abb45d142b9aca59ec174e3fd
drm/i915/display: Let PCON convert from RGB to YCbCr if it can

If PCON has capability to convert RGB->YCbCr colorspace and also
to 444->420 downsampling then for any YUV420 only mode, we can
let the PCON do all the conversion. If the PCON supports
RGB->YCbCr conversion for all BT2020, BT709, BT601, choose
the one that is selected by userspace via connector colorspace
property, otherwise default to BT601.

v2: As suggested by Uma Shankar, considered case for colorspace
BT709 and BT2020, and default to BT601. Also appended dir
'display' in commit message.

v3: Fixed typo in condition for printing one of the error msg.

v4: As suggested by Uma Shankar:
-Fixed bug in determining the colorspace for RGB->YCbCr conversion.
-Fixed minor formatting issues
Also updated the commit message as per latest changes.

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
[Jani: Fixed checkpatch PARENTHESIS_ALIGNMENT.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201218103723.30844-16-ankit.k.nautiyal@intel.com
drivers/gpu/drm/i915/display/intel_ddi.c
drivers/gpu/drm/i915/display/intel_display_types.h
drivers/gpu/drm/i915/display/intel_dp.c
drivers/gpu/drm/i915/display/intel_dp.h