Commit cca7c083 authored by Imre Deak's avatar Imre Deak
Browse files

dmc/i915/tc: Report pin assignment NONE in TBT-alt mode 



The pin assignment is only relevant in case the PHY is owned by the
display, that is in legacy and DP-alt mode. In TBT-alt mode the PHY is
owned by the TBT FW/driver and so the pin assignment/configuration is
managed by those components. A follow-up change will cache the pin
assignment value in all the TypeC modes - querying this by calling
get_pin_assignment() - prepare for that here, by reporting pin
assignment NONE in the TBT-alt mode.

Reviewed-by: default avatarMika Kahola <mika.kahola@intel.com>
Link: https://lore.kernel.org/r/20250805073700.642107-18-imre.deak@intel.com


Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
parent 76ed3b02

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

+3 −0
Original line number Diff line number Diff line
@@ -287,6 +287,9 @@ get_pin_assignment(struct intel_tc_port *tc) 
	u32 mask;

	u32 val;



	if (tc->mode == TC_PORT_TBT_ALT)

		return INTEL_TC_PIN_ASSIGNMENT_NONE;



	if (DISPLAY_VER(display) >= 20) {

		reg = TCSS_DDI_STATUS(tc_port);

		mask = TCSS_DDI_STATUS_PIN_ASSIGNMENT_MASK;