[PATCH i-g-t 8/8] tools/intel_vbt_decode: Dump dedicated_external and dyn_port_over_tc fields

Ankit Nautiyal
2026-04-22T03:59:22Z

VBT version 264 adds two new child device fields: dedicated_external
and dyn_port_over_tc. The dedicated_external field indicates TC ports
connected to PHYs outside the Type-C subsystem, while dyn_port_over_tc
indicates that a TC port supports dynamic DDI allocation in TCSS.

Dump these fields in the VBT decode tool.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
tools/intel_vbt_decode.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c
index dbc92e12a39a..1f4545c8e10c 100644
--- a/tools/intel_vbt_decode.c
+++ b/tools/intel_vbt_decode.c
@@ -1317,6 +1317,11 @@ static void dump_child_device(struct context *context,

if (context->bdb->version >= 263)
dump_edp_data_rate_override(child->edp_data_rate_override);
+
+ if (context->bdb->version >= 264) {
+ printf("\t\tDedicated External TC Port: %s\n", YESNO(child->dedicated_external));
+ printf("\t\tPort supports dynamic DDI allocation in TCSS: %s\n", YESNO(child->dyn_port_over_tc));
+ }
}

static void dump_child_devices(struct context *context, const uint8_t *devices,
--
2.45.2