diff --git a/drivers/base/component.c b/drivers/base/component.c index 741497324d78..d63e01f4851d 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -569,6 +569,20 @@ void component_master_del(struct device *parent, } EXPORT_SYMBOL_GPL(component_master_del); +bool component_master_is_bound(struct device *parent, + const struct component_master_ops *ops) +{ + struct aggregate_device *adev; + + guard(mutex)(&component_mutex); + adev = __aggregate_find(parent, ops); + if (!adev) + return 0; + + return adev->bound; +} +EXPORT_SYMBOL_GPL(component_master_is_bound); + static void component_unbind(struct component *component, struct aggregate_device *adev, void *data) { diff --git a/include/linux/component.h b/include/linux/component.h index df4aa75c9e7c..9d6c66401280 100644 --- a/include/linux/component.h +++ b/include/linux/component.h @@ -3,7 +3,7 @@ #define COMPONENT_H #include - +#include struct device; @@ -90,6 +90,8 @@ int component_compare_dev_name(struct device *dev, void *data); void component_master_del(struct device *, const struct component_master_ops *); +bool component_master_is_bound(struct device *parent, + const struct component_master_ops *ops); struct component_match;