[Intel-gfx] [PATCH 06/29] drm/i915/tc: Check for TC PHY explicitly in intel_tc_port_fia_max_lane_count()

[Imre Deak <imre.deak@intel.com>]

Check explicitly if the port passed to
intel_tc_port_fia_max_lane_count() has a TC PHY, instead of relying on
the default TC mode value set for non-TC PHY ports.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_tc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 70771044a2fe8..48a59a675cd57 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);
-- 
2.37.1