drm/i915/tc: Handle non-TC encoders when getting the pin assignment

For consistency, handle the case where
intel_tc_port_get_pin_assignment() is called for a non-TypeC encoder,
returning the default NONE pin assignment value, similarly to how this
is done in intel_tc_port_max_lane_count().

Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://lore.kernel.org/r/20250805073700.642107-16-imre.deak@intel.com
Signed-off-by: Imre Deak <imre.deak@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 7248d60bbf0b53aaf9f274505866920cdb86dd47..169eb61e22ea43b394a22cb28d1bfe7e00d020c6 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -400,6 +400,9 @@ intel_tc_port_get_pin_assignment(struct intel_digital_port *dig_port)
 {
        struct intel_tc_port *tc = to_tc_port(dig_port);
 
+       if (!intel_encoder_is_tc(&dig_port->base))
+               return INTEL_TC_PIN_ASSIGNMENT_NONE;
+
        return get_pin_assignment(tc);
 }