diff options
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index b093405ed525..0059b99e1f25 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -256,6 +256,7 @@ enum probe_type { * automatically. * @pm: Power management operations of the device which matched * this driver. + * @coredump: Called through sysfs to initiate a device coredump. * @p: Driver core's private data, no one other than the driver * core can touch this. * @@ -730,6 +731,28 @@ struct device_dma_parameters { }; /** + * struct device_connection - Device Connection Descriptor + * @endpoint: The names of the two devices connected together + * @id: Unique identifier for the connection + * @list: List head, private, for internal use only + */ +struct device_connection { + const char *endpoint[2]; + const char *id; + struct list_head list; +}; + +void *device_connection_find_match(struct device *dev, const char *con_id, + void *data, + void *(*match)(struct device_connection *con, + int ep, void *data)); + +struct device *device_connection_find(struct device *dev, const char *con_id); + +void device_connection_add(struct device_connection *con); +void device_connection_remove(struct device_connection *con); + +/** * enum device_link_state - Device link states. * @DL_STATE_NONE: The presence of the drivers is not being tracked. * @DL_STATE_DORMANT: None of the supplier/consumer drivers is present. @@ -769,6 +792,7 @@ enum device_link_state { * @status: The state of the link (with respect to the presence of drivers). * @flags: Link flags. * @rpm_active: Whether or not the consumer device is runtime-PM-active. + * @kref: Count repeated addition of the same link. * @rcu_head: An RCU head to use for deferred execution of SRCU callbacks. */ struct device_link { @@ -779,6 +803,7 @@ struct device_link { enum device_link_state status; u32 flags; bool rpm_active; + struct kref kref; #ifdef CONFIG_SRCU struct rcu_head rcu_head; #endif |