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* [PATCH] usb: typec: tcpm: try to get role switch from tcpc fwnode
@ 2023-03-28  8:23 Li Jun
  2023-03-28 14:11 ` Heikki Krogerus
  2023-03-29 10:44 ` Heikki Krogerus
  0 siblings, 2 replies; 5+ messages in thread
From: Li Jun @ 2023-03-28  8:23 UTC (permalink / raw)
  To: linux, heikki.krogerus; +Cc: gregkh, linux-usb, xu.yang_2, Li Jun

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>
---
 drivers/usb/typec/tcpm/tcpm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index a0d943d78580..f0534bdb4462 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -6557,6 +6557,8 @@ 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;
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2023-03-29 10:44 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-03-28  8:23 [PATCH] usb: typec: tcpm: try to get role switch from tcpc fwnode Li Jun
2023-03-28 14:11 ` Heikki Krogerus
2023-03-28 14:56   ` Guenter Roeck
2023-03-28 17:12   ` Bryan O'Donoghue
2023-03-29 10:44 ` Heikki Krogerus

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