drm/i915/dp: Use the effective data rate for DP compressed BW calculation

Browse source

Use intel_dp_effective_data_rate() to calculate the required link BW for
compressed streams on non-UHBR DP-SST links. This ensures that the BW is
calculated the same way for all DP output types and DSC/non-DSC modes,
during mode validation as well as during state computation.

This approach also allows for accounting with BW overhead due to DSC,
FEC being enabled on a link. Acounting for these will be added by
follow-up changes.

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251215192357.172201-10-imre.deak@intel.com

...

This commit is contained in:

Imre Deak 2025-12-15 21:23:49 +02:00

parent b1ec2916c9

commit 2fb850a6ae

1 changed files with 16 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

27

drivers/gpu/drm/i915/display/intel_dp.c

View file