#define port_name(p) ((p) + 'A')
+/*
+ * Ports identifier referenced from other drivers.
+ * Expected to remain stable over time
+ */
+static inline const char *port_identifier(enum port port)
+{
+ switch (port) {
+ case PORT_A:
+ return "Port A";
+ case PORT_B:
+ return "Port B";
+ case PORT_C:
+ return "Port C";
+ case PORT_D:
+ return "Port D";
+ case PORT_E:
+ return "Port E";
+ case PORT_F:
+ return "Port F";
+ default:
+ return "<invalid>";
+ }
+}
+
enum tc_port {
PORT_TC_NONE = -1,