UHBR rates and 128b/132b channel encoding go hand in hand.
v2: Fix check for >= UHBR rates using intel_dp_is_uhbr() (Ville)
Reviewed-by: Manasi Navare manasi.d.navare@intel.com # v1 Signed-off-by: Jani Nikula jani.nikula@intel.com --- drivers/gpu/drm/i915/display/intel_dp_link_training.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 36b35239da83..4f116cd32846 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -495,7 +495,8 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp, &rate_select, 1);
link_config[0] = crtc_state->vrr.enable ? DP_MSA_TIMING_PAR_IGNORE_EN : 0; - link_config[1] = DP_SET_ANSI_8B10B; + link_config[1] = intel_dp_is_uhbr(crtc_state) ? + DP_SET_ANSI_128B132B : DP_SET_ANSI_8B10B; drm_dp_dpcd_write(&intel_dp->aux, DP_DOWNSPREAD_CTRL, link_config, 2);
intel_dp->DP |= DP_PORT_EN;