Some port drivers may want to set a Type-C partner as a parent for a
USB Power Delivery object, but the Type-C partner struct isn't exposed
outside of the Type-C class driver. Add a helper which returns a pointer
to the Type-C partner's device struct, so that it can be supplied as the
parent to the PD object.
Cc: Benson Leung <bleung@xxxxxxxxxxxx>
Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Signed-off-by: Prashant Malani <pmalani@xxxxxxxxxxxx>
---
drivers/usb/typec/class.c | 13 +++++++++++++
include/linux/usb/typec.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index bd5e5dd70431..154c70630432 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -821,6 +821,19 @@ void typec_partner_set_svdm_version(struct typec_partner *partner,
}
EXPORT_SYMBOL_GPL(typec_partner_set_svdm_version);
+
+/**
+ * typec_partner_to_dev - Get the device struct of a USB Type-C partner.
+ * @partner: USB Type-C Partner
+ *
+ * Returns a pointer to the device struct or NULL.
+ */
+struct device *typec_partner_to_dev(struct typec_partner *partner)
+{
+ return partner ? &partner->dev : NULL;
+}
+EXPORT_SYMBOL_GPL(typec_partner_to_dev);
+
/**
* typec_register_partner - Register a USB Type-C Partner
* @port: The USB Type-C Port the partner is connected to
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 7751bedcae5d..085be3e94ff8 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -327,6 +327,8 @@ void typec_partner_set_svdm_version(struct typec_partner *partner,
enum usb_pd_svdm_ver svdm_version);
int typec_get_negotiated_svdm_version(struct typec_port *port);
+struct device *typec_partner_to_dev(struct typec_partner *partner);
+
int typec_port_set_usb_power_delivery(struct typec_port *port, struct usb_power_delivery *pd);
int typec_partner_set_usb_power_delivery(struct typec_partner *partner,
struct usb_power_delivery *pd);
--
2.38.1.584.g0f3c55d4c2-goog
