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-rw-r--r--drivers/gpu/drm/i915/display/intel_tc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index d6fc9c5bd979..4995c635d445 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -188,10 +188,11 @@ int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
{
struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
struct intel_tc_port *tc = to_tc_port(dig_port);
+ enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
intel_wakeref_t wakeref;
u32 lane_mask;
- if (tc->mode != TC_PORT_DP_ALT)
+ if (!intel_phy_is_tc(i915, phy) || tc->mode != TC_PORT_DP_ALT)
return 4;
assert_tc_cold_blocked(tc);