drm/i915/dp: Factor out compute_max_compressed_bpp_x16()

Factor out compute_max_compressed_bpp_x16() also used during mode
validation in a follow-up change.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251222153547.713360-12-imre.deak@intel.com
This commit is contained in:
Imre Deak 2025-12-22 17:35:38 +02:00
commit e68aecf473