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authorVille Syrjälä <ville.syrjala@linux.intel.com>2020-01-08 20:12:38 +0200
committerVille Syrjälä <ville.syrjala@linux.intel.com>2020-07-09 16:21:30 +0300
commit90f8ed85c6f31a53d8bdf04d80900d87296f6701 (patch)
treefd1326010305241ad73866cd726b76a527e58e8f /drivers/gpu/ipu-v3/ipu-ic.c
parent80f5ad62b6ecef424d25da2680150c828cbe7227 (diff)
drm/i915/sdvo: Implement limited color range for SDVO HDMI properly
The SDVO/HDMI port register limited color range bit can only be used with TMDS encoding and not SDVO encoding, ie. to be used only when using the port as a HDMI port as opposed to a SDVO port. The SDVO spec does have a note that some GMCHs might allow that, but gen4 bspec vehemently disagrees. I suppose on ILK+ it might work since the color range handling is on the CPU side rather than on the PCH side, so there is no clear linkage between the TMDS vs. SDVO encoding and color range. Alas, I have no hardware to test that theory. To implement limited color range support for SDVO->HDMI we need to ask the SDVO device to do the range compression. Do so, but first check if the device even supports the colorimetry selection. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200108181242.13650-5-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak <imre.deak@intel.com>
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-ic.c')
0 files changed, 0 insertions, 0 deletions