This allows aggregate driver writers to get the parent of the aggregate device passed to their probe/remove/shutdown functions.
Suggested-by: Jani Nikula jani.nikula@intel.com Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: "Rafael J. Wysocki" rafael@kernel.org Cc: Rob Clark robdclark@gmail.com Cc: Russell King rmk+kernel@arm.linux.org.uk Cc: Saravana Kannan saravanak@google.com Signed-off-by: Stephen Boyd swboyd@chromium.org --- 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