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| 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 /include/linux/usb/typec.h | |
| parent | f061f43d7418cb62b8d073e221ec75d3f5b89e17 (diff) | |
| download | linux-stable-662a60102c122e44fdaf5c826f7f415eb57d48ad.tar.gz linux-stable-662a60102c122e44fdaf5c826f7f415eb57d48ad.tar.bz2 linux-stable-662a60102c122e44fdaf5c826f7f415eb57d48ad.zip | |
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 'include/linux/usb/typec.h')
| -rw-r--r-- | include/linux/usb/typec.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index fdf737d48b3b..45e28d14ae56 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -52,6 +52,16 @@ enum typec_role { TYPEC_SOURCE, }; +static inline int is_sink(enum typec_role role) +{ + return role == TYPEC_SINK; +} + +static inline int is_source(enum typec_role role) +{ + return role == TYPEC_SOURCE; +} + enum typec_pwr_opmode { TYPEC_PWR_MODE_USB, TYPEC_PWR_MODE_1_5A, |