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drm/i915/dp_mst: Reuse the DP-SST helper function to compute FEC config

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Reuse the DP-SST helper to compute the state for the FEC enabled state
for DP-MST as well.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/20251015161934.262108-5-imre.deak@intel.com
This commit is contained in:
Imre Deak 2025-10-15 19:19:31 +03:00
parent cb6c8f1f6f
commit b762ae4829
1 changed files with 4 additions and 6 deletions
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10
drivers/gpu/drm/i915/display/intel_dp_mst.c
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@ -298,12 +298,10 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp,
* after it was set by intel_dp_dsc_compute_config() ->
* intel_dp_needs_8b10b_fec().
*/
if (dsc) {
if (!intel_dp_supports_fec(intel_dp, connector, crtc_state))
return -EINVAL;
crtc_state->fec_enable = !intel_dp_is_uhbr(crtc_state);
}
crtc_state->fec_enable = intel_dp_needs_8b10b_fec(crtc_state, dsc);
if (crtc_state->fec_enable &&
!intel_dp_supports_fec(intel_dp, connector, crtc_state))
return -EINVAL;
max_dpt_bpp_x16 = fxp_q4_from_int(intel_dp_mst_max_dpt_bpp(crtc_state, dsc));
if (max_dpt_bpp_x16 && max_bpp_x16 > max_dpt_bpp_x16) {