diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-02-01 01:59:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-01 10:04:08 +0100 |
| commit | e7dd40105aac9ba051e44ad711123bc53a5e4c71 (patch) | |
| tree | bce4bbd7d389e5e84b369156f8ee266a906628ed /include/linux/device.h | |
| parent | 72175d4ea4c442d95cf690c3e968eeee90fd43ca (diff) | |
| download | lwn-e7dd40105aac9ba051e44ad711123bc53a5e4c71.tar.gz lwn-e7dd40105aac9ba051e44ad711123bc53a5e4c71.zip | |
driver core: Add device link flag DL_FLAG_AUTOPROBE_CONSUMER
Add a new device link flag, DL_FLAG_AUTOPROBE_CONSUMER, to request the
driver core to probe for a consumer driver automatically after binding
a driver to the supplier device on a persistent managed device link.
As unbinding the supplier driver on a managed device link causes the
consumer driver to be detached from its device automatically, this
flag provides a complementary mechanism which is needed to address
some "composite device" use cases.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 5f49d2eff6ed..0ab0a3a80ec3 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -341,6 +341,7 @@ struct device *driver_find_device(struct device_driver *drv, struct device *start, void *data, int (*match)(struct device *dev, void *data)); +void driver_deferred_probe_add(struct device *dev); int driver_deferred_probe_check_state(struct device *dev); /** @@ -827,12 +828,14 @@ enum device_link_state { * PM_RUNTIME: If set, the runtime PM framework will use this link. * RPM_ACTIVE: Run pm_runtime_get_sync() on the supplier during link creation. * AUTOREMOVE_SUPPLIER: Remove the link automatically on supplier driver unbind. + * AUTOPROBE_CONSUMER: Probe consumer driver automatically after supplier binds. */ #define DL_FLAG_STATELESS BIT(0) #define DL_FLAG_AUTOREMOVE_CONSUMER BIT(1) #define DL_FLAG_PM_RUNTIME BIT(2) #define DL_FLAG_RPM_ACTIVE BIT(3) #define DL_FLAG_AUTOREMOVE_SUPPLIER BIT(4) +#define DL_FLAG_AUTOPROBE_CONSUMER BIT(5) /** * struct device_link - Device link representation. |