This step of the BSpec combo PHY port enabling is missing, so add it
now.
Reported-by: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Madhav Chauhan <madhav.chauhan@xxxxxxxxx>
Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_ddi.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index f181c26f62fd..d8d2e58e9811 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3111,6 +3111,15 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
else
intel_prepare_dp_ddi_buffers(encoder, crtc_state);
+ if (intel_port_is_combophy(dev_priv, port)) {
+ bool lane_reversal =
+ dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
+
+ icl_combo_phy_power_up_lanes(dev_priv, port,
+ crtc_state->lane_count,
+ lane_reversal);
+ }
+
intel_ddi_init_dp_buf_reg(encoder);
if (!is_mst)
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
--
2.13.2
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