diff options
| -rw-r--r-- | drivers/usb/typec/class.c | 30 | ||||
| -rw-r--r-- | include/linux/usb/typec.h | 1 |
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index b5241f4756c2..b6ceab3dc16b 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -749,6 +749,36 @@ int typec_partner_set_identity(struct typec_partner *partner) EXPORT_SYMBOL_GPL(typec_partner_set_identity); /** + * typec_partner_set_pd_revision - Set the PD revision supported by the partner + * @partner: The partner to be updated. + * @pd_revision: USB Power Delivery Specification Revision supported by partner + * + * This routine is used to report that the PD revision of the port partner has + * become available. + * + * Returns 0 on success or negative error number on failure. + */ +int typec_partner_set_pd_revision(struct typec_partner *partner, u16 pd_revision) +{ + int ret; + + if (partner->pd_revision == pd_revision) + return 0; + + partner->pd_revision = pd_revision; + sysfs_notify(&partner->dev.kobj, NULL, "usb_power_delivery_revision"); + if (pd_revision != 0 && !partner->usb_pd) { + partner->usb_pd = 1; + sysfs_notify(&partner->dev.kobj, NULL, + "supports_usb_power_delivery"); + } + kobject_uevent(&partner->dev.kobj, KOBJ_CHANGE); + + return 0; +} +EXPORT_SYMBOL_GPL(typec_partner_set_pd_revision); + +/** * typec_partner_set_num_altmodes - Set the number of available partner altmodes * @partner: The partner to be updated. * @num_altmodes: The number of altmodes we want to specify as available. diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index 42c6b7c07a99..4946eca742d5 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -126,6 +126,7 @@ struct typec_altmode_desc { enum typec_port_data roles; }; +int typec_partner_set_pd_revision(struct typec_partner *partner, u16 pd_revision); int typec_partner_set_num_altmodes(struct typec_partner *partner, int num_altmodes); struct typec_altmode *typec_partner_register_altmode(struct typec_partner *partner, |