diff options
Diffstat (limited to 'include/linux/device/bus.h')
| -rw-r--r-- | include/linux/device/bus.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index f5a56efd2bd6..c1b463cd6464 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -35,6 +35,8 @@ struct fwnode_handle; * otherwise. It may also return error code if determining that * the driver supports the device is not possible. In case of * -EPROBE_DEFER it will queue the device for deferred probing. + * Note: This callback may be invoked with or without the device + * lock held. * @uevent: Called when a device is added, removed, or a few other things * that generate uevents to add the environment variables. * @probe: Called when a new device or driver add to this bus, and callback @@ -63,6 +65,9 @@ struct fwnode_handle; * this bus. * @pm: Power management operations of this bus, callback the specific * device driver's pm-ops. + * @driver_override: Set to true if this bus supports the driver_override + * mechanism, which allows userspace to force a specific + * driver to bind to a device via a sysfs attribute. * @need_parent_lock: When probing or removing a device on this bus, the * device core should lock the device's parent. * @@ -104,6 +109,7 @@ struct bus_type { const struct dev_pm_ops *pm; + bool driver_override; bool need_parent_lock; }; @@ -150,6 +156,9 @@ int bus_for_each_dev(const struct bus_type *bus, struct device *start, void *data, device_iter_t fn); struct device *bus_find_device(const struct bus_type *bus, struct device *start, const void *data, device_match_t match); +struct device *bus_find_device_reverse(const struct bus_type *bus, + struct device *start, const void *data, + device_match_t match); /** * bus_find_device_by_name - device iterator for locating a particular device * of a specific name. @@ -212,9 +221,9 @@ bus_find_next_device(const struct bus_type *bus,struct device *cur) return bus_find_device(bus, cur, NULL, device_match_any); } -#ifdef CONFIG_ACPI struct acpi_device; +#ifdef CONFIG_ACPI /** * bus_find_device_by_acpi_dev : device iterator for locating a particular device * matching the ACPI COMPANION device. @@ -228,7 +237,7 @@ bus_find_device_by_acpi_dev(const struct bus_type *bus, const struct acpi_device } #else static inline struct device * -bus_find_device_by_acpi_dev(const struct bus_type *bus, const void *adev) +bus_find_device_by_acpi_dev(const struct bus_type *bus, const struct acpi_device *adev) { return NULL; } |