staging: typec: tcpm: Select default state based on port type

tcpm_default_state wasn't considering the port type when determining the
default role. This change makes tcpm_default_state to consider port type
as well.

tcpm_default_state would return the following based on the port type:
TYPEC_PORT_UFP - SNK_UNATTACHED
TYPEC_PORT_DFP - SRC_UNATTACHED
TYPEC_PORT_DRP - based on the preferred_role setting
Signed-off-by: Badhri Jagan Sridharan <Badhri@google.com>
[groeck: Reworded description; minor formatting changes]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/typec/tcpm.c

@@ -332,12 +332,17 @@ struct pd_rx_event {
 
 static enum tcpm_state tcpm_default_state(struct tcpm_port *port)
 {
+	if (port->typec_caps.type == TYPEC_PORT_DRP) {
 		if (port->try_role == TYPEC_SINK)
 			return SNK_UNATTACHED;
 		else if (port->try_role == TYPEC_SOURCE)
 			return SRC_UNATTACHED;
 		else if (port->tcpc->config->default_role == TYPEC_SINK)
 			return SNK_UNATTACHED;
+		/* Fall through to return SRC_UNATTACHED */
+	} else if (port->typec_caps.type == TYPEC_PORT_UFP) {
+		return SNK_UNATTACHED;
+	}
 	return SRC_UNATTACHED;
 }