diff options
| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2022-05-02 16:20:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-12 06:49:47 +0200 |
| commit | 662a60102c122e44fdaf5c826f7f415eb57d48ad (patch) | |
| tree | 14316d839bbfc42609275983ff01647dc4806692 /drivers/usb/typec/pd.h | |
| parent | f061f43d7418cb62b8d073e221ec75d3f5b89e17 (diff) | |
| download | linux-662a60102c122e44fdaf5c826f7f415eb57d48ad.tar.bz2 | |
usb: typec: Separate USB Power Delivery from USB Type-C
Introducing a small device class for USB Power Delivery.
The idea with it is that we do not mix any more USB Power
Delivery information into the USB Type-C connectors only.
This separation will make it possible to register USB Power
Delivery devices also from other places, for example from
USB Type-C Bridges (see USB Type-C Bridge Specification).
The device class will not always deal with only the messages
and objects that were negotiated with the partner, but
instead messages and objects that can be used in the
negotiation. That allows the USB PD devices to be shared and
reconfigured. The ports can decide which objects are to be
advertised to the partner before the contract is negotiated.
It is also possible to allow the user space to make that
decision if needed.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220502132058.86236-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec/pd.h')
| -rw-r--r-- | drivers/usb/typec/pd.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/usb/typec/pd.h b/drivers/usb/typec/pd.h new file mode 100644 index 000000000000..049a1aad440a --- /dev/null +++ b/drivers/usb/typec/pd.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __USB_POWER_DELIVERY__ +#define __USB_POWER_DELIVERY__ + +#include <linux/device.h> +#include <linux/usb/typec.h> + +struct usb_power_delivery { + struct device dev; + int id; + u16 revision; + u16 version; +}; + +struct usb_power_delivery_capabilities { + struct device dev; + struct usb_power_delivery *pd; + enum typec_role role; +}; + +#define to_usb_power_delivery_capabilities(o) container_of(o, struct usb_power_delivery_capabilities, dev) +#define to_usb_power_delivery(o) container_of(o, struct usb_power_delivery, dev) + +struct usb_power_delivery *usb_power_delivery_find(const char *name); + +int usb_power_delivery_init(void); +void usb_power_delivery_exit(void); + +#endif /* __USB_POWER_DELIVERY__ */ |