From 08d4fb9548d777fa1a7099beeade8888598f1323 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 5 Aug 2025 10:36:52 +0300 Subject: [PATCH] drm/i915/tc: Handle pin assignment NONE on all platforms For consistency, handle pin assignment NONE on all platforms similarly to LNL+. On earlier platforms the driver doesn't actually see this pin assignment - as it's not valid on a connected DP-alt PHY - however it's a valid HW setting even on those platforms, for instance in legacy mode. Handle this pin assignment on earlier platforms as well, so that the way to query the pin assignment can be unified by a follow-up change. Reviewed-by: Mika Kahola Link: https://lore.kernel.org/r/20250805073700.642107-12-imre.deak@intel.com Signed-off-by: Imre Deak --- drivers/gpu/drm/i915/display/intel_tc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 31663029642a0..d1f17d2f236cc 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -334,6 +334,8 @@ static int mtl_tc_port_get_max_lane_count(struct intel_digital_port *dig_port) pin_assignment = intel_tc_port_get_pin_assignment(dig_port); switch (pin_assignment) { + case INTEL_TC_PIN_ASSIGNMENT_NONE: + return 0; default: MISSING_CASE(pin_assignment); fallthrough; -- 2.51.0