usb: typec: tcpm: try to get role switch from tcpc fwnode

Try to get usb role switch from tcpc fwnode if failed to
get role switch from port dev, this is for case the port
for role switch endpoint is located in connector node,
as per connector binding doc, port@0 for HS is required.

ptn5110: tcpc@50 {
	compatible = "nxp,ptn5110";
	...
	status = "okay";

	connector {
		compatible = "usb-c-connector";
		label = "USB-C";
		...

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				typec_conn: endpoint {
					remote-endpoint = <&usb2_controller>;
				};
			};
		};
	};
};

Signed-off-by: Li Jun <jun.li@nxp.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/1679991784-25500-1-git-send-email-jun.li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index ab3a54662ed90389e41d01f046d1e9c4cb749776..4e276d2f15d1641b132cbcc98fba433f0382c35c 100644 (file)
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -6577,6 +6577,8 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
        port->port_type = port->typec_caps.type;
 
        port->role_sw = usb_role_switch_get(port->dev);
+       if (!port->role_sw)
+               port->role_sw = fwnode_usb_role_switch_get(tcpc->fwnode);
        if (IS_ERR(port->role_sw)) {
                err = PTR_ERR(port->role_sw);
                goto out_destroy_wq;