Commit 71176241 authored by Imre Deak's avatar Imre Deak
Browse files

drm/i915/tc: Check for TC PHY explicitly in intel_tc_port_fia_max_lane_count() 



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.

Reviewed-by: default avatarMika Kahola <mika.kahola@intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230323142035.1432621-7-imre.deak@intel.com
parent 3eafcddf

drivers/gpu/drm/i915/display/intel_tc.c

+2 −1
Original line number Diff line number Diff line
@@ -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);