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| author | Saravana Kannan <saravanak@google.com> | 2023-03-04 01:53:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-10 09:06:22 +0100 |
| commit | f8fb576658a3e19796e2e1a12a5ec8f44dac02b6 (patch) | |
| tree | 754eb365da8989ddeebdd90206ee61ef7f799246 /drivers/base/base.h | |
| parent | driver core: Add fw_devlink.sync_state command line param (diff) | |
| download | linux-f8fb576658a3e19796e2e1a12a5ec8f44dac02b6.tar.xz linux-f8fb576658a3e19796e2e1a12a5ec8f44dac02b6.zip | |
driver core: Make state_synced device attribute writeable
If the file is written to and sync_state() hasn't been called for the
device yet, then call sync_state() for the device independent of the
state of its consumers.
This is useful for supplier devices that have one or more consumers that
don't have a driver but the consumers are in a state that don't use the
resources supplied by the supplier device.
This gives finer grained control than using the
fw_devlink.sync_state=timeout kernel commandline parameter.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20230304005355.746421-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/base.h')
| -rw-r--r-- | drivers/base/base.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/base/base.h b/drivers/base/base.h index 6fcd71803d35..b055eba1ec30 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -164,6 +164,14 @@ static inline int driver_match_device(struct device_driver *drv, return drv->bus->match ? drv->bus->match(dev, drv) : 1; } +static inline void dev_sync_state(struct device *dev) +{ + if (dev->bus->sync_state) + dev->bus->sync_state(dev); + else if (dev->driver && dev->driver->sync_state) + dev->driver->sync_state(dev); +} + extern int driver_add_groups(struct device_driver *drv, const struct attribute_group **groups); extern void driver_remove_groups(struct device_driver *drv, |