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Setting the end address for a resource with a given size lacks a helper and is therefore coded manually unlike the getter side which has a helper for resource size calculation. Also, almost all callsites that calculate the end address for a resource also set the start address right before it like this: res->start = start_addr; res->end = res->start + size - 1; Add resource_set_range(res, start_addr, size) that sets the start address and calculates the end address to simplify this often repeated fragment. Also add resource_set_size() for the cases where setting the start address of the resource is not necessary but mention in its kerneldoc that resource_set_range() is preferred when setting both addresses. Link: https://lore.kernel.org/r/20240614100606.15830-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>