Hi, The purpose of the struct device_connection was to allow connections between devices to be described somehow when the firmware did not do that. Later support for also firmware described connections, for example walking device graph, was added to the API. But now software nodes make it possible to describe for example device graph if needed, so we don't need a separate method of describing the connections. All the users of struct device_connection have now been concerted to use software nodes instead, so we can remove the data structure, and the list for it. thanks, Heikki Krogerus (4): device connection: Remove device_connection_find() device connection: Remove device_connection_add() device connection: Remove struct device_connection device property: Move fwnode_connection_find_match() under drivers/base/property.c .../driver-api/device_connection.rst | 43 ---- drivers/base/Makefile | 2 +- drivers/base/devcon.c | 231 ------------------ drivers/base/property.c | 73 ++++++ drivers/usb/roles/class.c | 12 +- drivers/usb/typec/mux.c | 19 +- include/linux/device.h | 56 ----- include/linux/property.h | 14 ++ 8 files changed, 102 insertions(+), 348 deletions(-) delete mode 100644 Documentation/driver-api/device_connection.rst delete mode 100644 drivers/base/devcon.c -- 2.28.0