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

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

diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d0590b5ffffd73131ae3b9c2ab5d949e6f71c5a2..0cbb4c3a8e22f705e8f6931e9240eefa5eb5e877 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -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) {