usb: typec: tcpm: reset counter when enter into unattached state after try role

The try_src_count and try_snk_count may still be 1 after enter into
unattached state. This may be caused by below case:
 - SNK_TRY->SNK_TRY_WAIT->SRC_TRYWAIT->SNK_UNATTACHED
 - SRC_TRY->SRC_TRY_WAIT->SNK_TRYWAIT->SNK_UNATTACHED

The port->attached is not true at the end and tcpm_reset_port() will not
be called. This will reset counter into for these cases, otherwise the tcpm
won't try role when new cable attached.

Signed-off-by: Xu Yang <[email protected]>
Reviewed-by: Heikki Krogerus <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Xu Yang

drivers/usb/typec/tcpm/tcpm.c

@@ -3720,6 +3720,9 @@ static void tcpm_detach(struct tcpm_port *port)
 	if (tcpm_port_is_disconnected(port))
 		port->hard_reset_count = 0;
 
+	port->try_src_count = 0;
+	port->try_snk_count = 0;
+
 	if (!port->attached)
 		return;