diff options
| author | Prashant Malani <pmalani@chromium.org> | 2022-11-22 22:05:36 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-29 08:56:09 +0100 |
| commit | 032399819dd5f135e6ffe446c8e97ab54eec3464 (patch) | |
| tree | 725f3243eaff4c4e7fab45e293d367998b65a116 | |
| parent | 03a88b0bafbe3f548729d970d8366f48718c9b19 (diff) | |
usb: typec: Add partner PD object wrapper
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 wrapper to
usb_power_delivery_register() which sets the provided Type-C partner
as a parent to the USB PD object. This helps to avoid exposing the
Type-C partner's device struct unnecessarily.
Cc: Benson Leung <bleung@chromium.org>
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20221122220538.2991775-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/typec/class.c | 19 | ||||
| -rw-r--r-- | include/linux/usb/typec.h | 4 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index bd5e5dd70431..5897905cb4f0 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -822,6 +822,25 @@ void typec_partner_set_svdm_version(struct typec_partner *partner, EXPORT_SYMBOL_GPL(typec_partner_set_svdm_version); /** + * typec_partner_usb_power_delivery_register - Register Type-C partner USB Power Delivery Support + * @partner: Type-C partner device. + * @desc: Description of the USB PD contract. + * + * This routine is a wrapper around usb_power_delivery_register(). It registers + * USB Power Delivery Capabilities for a Type-C partner device. Specifically, + * it sets the Type-C partner device as a parent for the resulting USB Power Delivery object. + * + * Returns handle to struct usb_power_delivery or ERR_PTR. + */ +struct usb_power_delivery * +typec_partner_usb_power_delivery_register(struct typec_partner *partner, + struct usb_power_delivery_desc *desc) +{ + return usb_power_delivery_register(&partner->dev, desc); +} +EXPORT_SYMBOL_GPL(typec_partner_usb_power_delivery_register); + +/** * typec_register_partner - Register a USB Type-C Partner * @port: The USB Type-C Port the partner is connected to * @desc: Description of the partner diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index 7751bedcae5d..8fa781207970 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -23,6 +23,7 @@ struct fwnode_handle; struct device; struct usb_power_delivery; +struct usb_power_delivery_desc; enum typec_port_type { TYPEC_PORT_SRC, @@ -327,6 +328,9 @@ 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 usb_power_delivery *typec_partner_usb_power_delivery_register(struct typec_partner *partner, + struct usb_power_delivery_desc *desc); + 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); |