This series fixes issues faced when an HDMI2.1 sink that does not
support DSC is connected via HDMI2.1PCON. It also includes other minor
HDMI2.1 PCON fixes/refactoring.
Patch 1-2 Have minor fixes/cleanups.
Patch 3-6 Pull the decision making to use DFP conversion capabilities
for every mode during compute config, instead of having that decision
during DP initializing phase.
Patch 7-8 Calculate the max BPC that can be sufficient with either
RGB or YCbcr420 format for the maximum FRL rate supported.
Rev2: Split the refactoring of DFP RG->YCBCR conversion into smaller
patches, as suggested by Jani N.
Also dropped the unnecessary helper for DSC1.2 support for HDMI2.1 DFP.
Rev3: As suggested by Ville, added new member sink_format to store the
final format that the sink will be using, which might be different
than the output format, and thus might need color/format conversion
performed by the PCON.
Rev4: Fix typo in switch case as, reported by kernel test bot.
Rev5: Corrected order of setting sink_format and output_format. (Ville)
Avoided the flag ycbcr420_output and used the sink_format to facilitate
4:2:2 support at a later stage. (Ville)
Rev6: Added missing changes for sdvo. (Ville)
Added check for scaler and DSC constraints with YCbCr420.
Rev7: Split change to add scaler constraint in separate patch, and rebased.
Rev8: Rebased. Fixed check for mode rate with dsc in modevalid.
Fixed scaler constraint as per display version.
Rev9: Rebased.
Rev10: Addressed review comments from Ville.
Dropped patch to check for mode rate with dsc during modevalid, as the
compressed bpp is already selected with bandwidth considerations.
Rev11: Fixed the policy to use output format as RGB first if possible,
followed by YCbCr444, atlast YCbCr420. Also removed the scaler-constraints
with YCbCr420, as these are handled in scaler code. (Ville)
Ankit Nautiyal (11):
drm/i915/display: Add new member to configure PCON color conversion
drm/i915/display: Add new member in intel_dp to store ycbcr420
passthrough cap
drm/i915/dp: Replace intel_dp.dfp members with the new crtc_state
sink_format
drm/i915/display: Use sink_format instead of ycbcr420_output flag
drm/i915/dp: Rearrange check for illegal mode and comments in
mode_valid
drm/i915/dp: Consider output_format while computing dsc bpp for
mode_valid
drm/i915/display: Add helper function to check if sink_format is 420
drm/i915/dp: Avoid DSC with output_format YCBCR420
drm/i915/dp: Handle BPP where HDMI2.1 DFP doesn't support DSC
drm/i915/dp: Fix FRL BW check for HDMI2.1 DFP
drm/i915/dp: Add a wrapper to check frl/tmds downstream constraints
drivers/gpu/drm/i915/display/icl_dsi.c | 1 +
drivers/gpu/drm/i915/display/intel_crt.c | 1 +
.../drm/i915/display/intel_crtc_state_dump.c | 5 +-
drivers/gpu/drm/i915/display/intel_display.c | 5 +
.../drm/i915/display/intel_display_types.h | 18 +-
drivers/gpu/drm/i915/display/intel_dp.c | 420 +++++++++++++-----
drivers/gpu/drm/i915/display/intel_dp.h | 4 +-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +-
drivers/gpu/drm/i915/display/intel_dvo.c | 1 +
drivers/gpu/drm/i915/display/intel_hdmi.c | 73 +--
drivers/gpu/drm/i915/display/intel_hdmi.h | 5 +-
drivers/gpu/drm/i915/display/intel_lvds.c | 1 +
drivers/gpu/drm/i915/display/intel_sdvo.c | 1 +
drivers/gpu/drm/i915/display/intel_tv.c | 1 +
drivers/gpu/drm/i915/display/vlv_dsi.c | 1 +
15 files changed, 380 insertions(+), 160 deletions(-)
--
2.25.1
