linux/drivers/base/devcon.c, branch v5.1

device connection: Find device connections also from device graphs

2019-02-14T09:52:25Z

If connections between devices are described in OF graph or ACPI device graph, we can find them by using the fwnode_graph_*() functions. Acked-by: Hans de Goede Reviewed-by: Andy Shevchenko Reviewed-by: Jun Li Tested-by: Jun Li Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman

device connection: Prepare support for firmware described connections

2019-02-14T09:52:25Z

When the connections are defined in firmware, struct device_connection will have the fwnode member pointing to the device node (struct fwnode_handle) of the requested device. The endpoint member for the device names will not be used at all in that case. Acked-by: Hans de Goede Reviewed-by: Andy Shevchenko Reviewed-by: Jun Li Tested-by: Jun Li Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman

drivers: base: Unified device connection lookup

2018-03-22T12:10:29Z

Several frameworks - clk, gpio, phy, pmw, etc. - maintain lookup tables for describing connections and provide custom API for handling them. This introduces a single generic lookup table and API for the connections. The motivation for this commit is centralizing the connection lookup, but the goal is to ultimately extract the connection descriptions also from firmware by using the fwnode_graph_* functions and other mechanisms that are available. Reviewed-by: Hans de Goede Reviewed-by: Andy Shevchenko Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman