usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference

Allow chip level drivers to retrieve reference to tcpm_port.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201008061556.1402293-2-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index 7d9491b..b960fe5 100644 (file)
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -38,6 +38,12 @@ struct tcpci_chip {
        struct tcpci_data data;
 };
 
+struct tcpm_port *tcpci_get_tcpm_port(struct tcpci *tcpci)
+{
+       return tcpci->port;
+}
+EXPORT_SYMBOL_GPL(tcpci_get_tcpm_port);
+
 static inline struct tcpci *tcpc_to_tcpci(struct tcpc_dev *tcpc)
 {
        return container_of(tcpc, struct tcpci, tcpc);

diff --git a/drivers/usb/typec/tcpm/tcpci.h b/drivers/usb/typec/tcpm/tcpci.h
index cf9d8b6..04c49a0 100644 (file)
--- a/drivers/usb/typec/tcpm/tcpci.h
+++ b/drivers/usb/typec/tcpm/tcpci.h
@@ -150,4 +150,6 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data);
 void tcpci_unregister_port(struct tcpci *tcpci);
 irqreturn_t tcpci_irq(struct tcpci *tcpci);
 
+struct tcpm_port;
+struct tcpm_port *tcpci_get_tcpm_port(struct tcpci *tcpci);
 #endif /* __LINUX_USB_TCPCI_H */