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| author |   Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2019-07-30 22:36:31 +0200 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2019-07-30 22:36:31 +0200 |
| commit | be7fc2cc86170bea31e1db8d596f35df52254971 (patch) | |
| tree | 31ca140aec74decbf18dfce1a7869aeeb8dcbf84 /drivers/base/platform.c | |
| parent | leds: netxbig: Add of_node_put() in netxbig_leds_get_of_pdata() (diff) | |
| parent | platform: Add platform_find_device_by_driver() helper (diff) | |
| download | linux-dev-be7fc2cc86170bea31e1db8d596f35df52254971.tar.xz linux-dev-be7fc2cc86170bea31e1db8d596f35df52254971.zip | |
Merge tag 'generic_lookup_helpers' into for-next
Generic Device Lookup Helpers
Persistent tag for others to pull this branch from
Based on patch series from Suzuki K Poulose <suzuki.poulose@arm.com>
with Subject: [PATCH v3 0/7] drivers: Add generic device lookup helpers
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'generic_lookup_helpers':
platform: Add platform_find_device_by_driver() helper
drivers: Add generic helper to match any device
drivers: Introduce device lookup variants by ACPI_COMPANION device
drivers: Introduce device lookup variants by device type
drivers: Introduce device lookup variants by fwnode
drivers: Introduce device lookup variants by of_node
drivers: Introduce device lookup variants by name
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 506a0175a5a7..a174ce5ea17c 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1197,6 +1197,20 @@ struct bus_type platform_bus_type = { }; EXPORT_SYMBOL_GPL(platform_bus_type); +/** + * platform_find_device_by_driver - Find a platform device with a given + * driver. + * @start: The device to start the search from. + * @drv: The device driver to look for. + */ +struct device *platform_find_device_by_driver(struct device *start, + const struct device_driver *drv) +{ + return bus_find_device(&platform_bus_type, start, drv, + (void *)platform_match); +} +EXPORT_SYMBOL_GPL(platform_find_device_by_driver); + int __init platform_bus_init(void) { int error; |