This allows aggregate driver writers to get the parent of the aggregate device passed to their probe/remove/shutdown functions.
Suggested-by: Jani Nikula <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Laurent Pinchart <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Rob Clark <[email protected]> Cc: Russell King <[email protected]> Cc: Saravana Kannan <[email protected]> Signed-off-by: Stephen Boyd <[email protected]> --- drivers/base/component.c | 6 ++++++ include/linux/component.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/base/component.c b/drivers/base/component.c index dc748ef0b23b..13ac2004a913 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -71,6 +71,12 @@ static inline struct aggregate_device *to_aggregate_device(struct device *d) return container_of(d, struct aggregate_device, dev); } +struct device *aggregate_device_parent(const struct aggregate_device *adev) +{ + return adev->parent; +} +EXPORT_SYMBOL_GPL(aggregate_device_parent); + struct component { struct list_head node; struct aggregate_device *adev; diff --git a/include/linux/component.h b/include/linux/component.h index aa69ea0401d3..c39dea7824af 100644 --- a/include/linux/component.h +++ b/include/linux/component.h @@ -43,6 +43,7 @@ int component_bind_all(struct device *parent, void *data); void component_unbind_all(struct device *parent, void *data); struct aggregate_device; +struct device *aggregate_device_parent(const struct aggregate_device *adev); /** * struct component_master_ops - callback for the aggregate driver -- https://chromeos.dev
