On Tue, Mar 28, 2023 at 04:23:04PM +0800, Li Jun wrote:
> 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@xxxxxxx>
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> ---
> 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
--
heikki
