From cca7c083a3f622164a3615ed243e6a5ccdd1dd10 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 5 Aug 2025 10:36:58 +0300 Subject: [PATCH] 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: Mika Kahola Link: https://lore.kernel.org/r/20250805073700.642107-18-imre.deak@intel.com Signed-off-by: Imre Deak --- drivers/gpu/drm/i915/display/intel_tc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 073c434fd3787..3e53332f804f8 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -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; -- 2.51.0