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This helper will register a software node and then assign it to device at the same time. The function will also make sure that the device can't have more than one software node. Acked-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20210115094914.88401-2-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>