diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2023-03-07 16:14:19 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2023-03-10 10:28:37 +0100 |
| commit | fb887db2bdeaf42630436a28d62deba5572f7217 (patch) | |
| tree | d8e5f80f36cfb215dae1f37a79e6fb4b65b135cc /include | |
| parent | 3610ec11f72b464c900bddd8bfdf12b58c70ea03 (diff) | |
| download | barebox-fb887db2bdeaf42630436a28d62deba5572f7217.tar.gz | |
driver: Add rescan hook to struct device
When devices are enabled with a device tree overlay the newly enabled
devices can be probed by doing a of_probe(). This works fine for the
regular platform devices, but doesn't work for devices which are not
probed by the core, but by the subsystem. Prominent examples are I2C or
SPI devices.
This patch adds a struct device::rescan hook that subsystems can
implement to trigger rescanning the device nodes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/driver.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/driver.h b/include/driver.h index f53668711b..2cf0190699 100644 --- a/include/driver.h +++ b/include/driver.h @@ -91,6 +91,7 @@ struct device { * when the driver should actually detect client devices */ int (*detect) (struct device *); + void (*rescan) (struct device *); /* * if a driver probe is deferred, this stores the last error @@ -158,6 +159,11 @@ static inline void put_device(struct device *dev) {} void free_device_res(struct device *dev); void free_device(struct device *dev); +static inline void device_rescan(struct device *dev) +{ + if (dev->rescan) + dev->rescan(dev); +} /* Iterate over a devices children */ |