From: Imre Deak Date: Wed, 15 Oct 2025 16:19:31 +0000 (+0300) Subject: drm/i915/dp_mst: Reuse the DP-SST helper function to compute FEC config X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b762ae48293e2cc2145cdc91eb596d057f1aff11;p=thirdparty%2Fkernel%2Flinux.git 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 Reviewed-by: Jouni Högander 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 d0590b5ffffd7..0cbb4c3a8e22f 100644 --- 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) {