diff options
| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2023-10-11 13:58:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-16 21:02:36 +0300 |
| commit | 59de2a56d127890cc610f3896d5fc31887c54ac2 (patch) | |
| tree | 216eee1c028a15c89d89fc610f48ce1fc03a9da2 /drivers/usb/typec/class.h | |
| parent | 17d6b82d2d6d467149874b883cdba844844b996d (diff) | |
| download | linux-59de2a56d127890cc610f3896d5fc31887c54ac2.tar.xz | |
usb: typec: Link enumerated USB devices with Type-C partner
Adding functions that USB hub code can use to inform the
Type-C class about connected USB devices.
Once taken into use, it will allow the Type-C port drivers
to power off components that are not needed, for example if
USB2 device is enumerated, everything that is only relevant
for USB3 (retimers, etc.), can be powered off.
This will also create a symlink "typec" for the USB devices
pointing to the USB Type-C partner device.
Suggested-by: Benson Leung <bleung@chromium.org>
Tested-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20231011105825.320062-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec/class.h')
| -rw-r--r-- | drivers/usb/typec/class.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/usb/typec/class.h b/drivers/usb/typec/class.h index 673b2952b074..c36761ba3f59 100644 --- a/drivers/usb/typec/class.h +++ b/drivers/usb/typec/class.h @@ -8,6 +8,7 @@ struct typec_mux; struct typec_switch; +struct usb_device; struct typec_plug { struct device dev; @@ -35,6 +36,9 @@ struct typec_partner { enum usb_pd_svdm_ver svdm_version; struct usb_power_delivery *pd; + + void (*attach)(struct typec_partner *partner, struct device *dev); + void (*deattach)(struct typec_partner *partner, struct device *dev); }; struct typec_port { @@ -59,6 +63,18 @@ struct typec_port { const struct typec_capability *cap; const struct typec_operations *ops; + + struct typec_connector con; + + /* + * REVISIT: Only USB devices for now. If there are others, these need to + * be converted into a list. + * + * NOTE: These may be registered first before the typec_partner, so they + * will always have to be kept here instead of struct typec_partner. + */ + struct device *usb2_dev; + struct device *usb3_dev; }; #define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev) |