diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -4545,6 +4545,13 @@
 	return (BUS_ADJUST_RESOURCE(dev->parent, dev, type, r, start, end));
 }
 
+int
+bus_adjust_resource_new(device_t dev, struct resource *r, rman_res_t start,
+    rman_res_t end)
+{
+	return (bus_adjust_resource(dev, rman_get_type(r), r, start, end));
+}
+
 /**
  * @brief Wrapper function for BUS_TRANSLATE_RESOURCE().
  *
@@ -4574,6 +4581,13 @@
 	return (BUS_ACTIVATE_RESOURCE(dev->parent, dev, type, rid, r));
 }
 
+int
+bus_activate_resource_new(device_t dev, struct resource *r)
+{
+	return (bus_activate_resource(dev, rman_get_type(r), rman_get_rid(r),
+	    r));
+}
+
 /**
  * @brief Wrapper function for BUS_DEACTIVATE_RESOURCE().
  *
@@ -4588,6 +4602,13 @@
 	return (BUS_DEACTIVATE_RESOURCE(dev->parent, dev, type, rid, r));
 }
 
+int
+bus_deactivate_resource_new(device_t dev, struct resource *r)
+{
+	return (bus_deactivate_resource(dev, rman_get_type(r), rman_get_rid(r),
+	    r));
+}
+
 /**
  * @brief Wrapper function for BUS_MAP_RESOURCE().
  *
@@ -4603,6 +4624,13 @@
 	return (BUS_MAP_RESOURCE(dev->parent, dev, type, r, args, map));
 }
 
+int
+bus_map_resource_new(device_t dev, struct resource *r,
+    struct resource_map_request *args, struct resource_map *map)
+{
+	return (bus_map_resource(dev, rman_get_type(r), r, args, map));
+}
+
 /**
  * @brief Wrapper function for BUS_UNMAP_RESOURCE().
  *
@@ -4618,6 +4646,13 @@
 	return (BUS_UNMAP_RESOURCE(dev->parent, dev, type, r, map));
 }
 
+int
+bus_unmap_resource_new(device_t dev, struct resource *r,
+    struct resource_map *map)
+{
+	return (bus_unmap_resource(dev, rman_get_type(r), r, map));
+}
+
 /**
  * @brief Wrapper function for BUS_RELEASE_RESOURCE().
  *
@@ -4635,6 +4670,13 @@
 	return (rv);
 }
 
+int
+bus_release_resource_new(device_t dev, struct resource *r)
+{
+	return (bus_release_resource(dev, rman_get_type(r), rman_get_rid(r),
+	    r));
+}
+
 /**
  * @brief Wrapper function for BUS_SETUP_INTR().
  *
diff --git a/sys/sys/bus.h b/sys/sys/bus.h
--- a/sys/sys/bus.h
+++ b/sys/sys/bus.h
@@ -613,6 +613,43 @@
 	return (bus_alloc_resource(dev, type, rid, 0, ~0, count, flags));
 }
 
+/* Compat shims for simpler bus resource API. */
+int	bus_adjust_resource_new(device_t child, struct resource *r,
+    rman_res_t start, rman_res_t end);
+int	bus_activate_resource_new(device_t dev, struct resource *r);
+int	bus_deactivate_resource_new(device_t dev, struct resource *r);
+int	bus_map_resource_new(device_t dev, struct resource *r,
+    struct resource_map_request *args, struct resource_map *map);
+int	bus_unmap_resource_new(device_t dev, struct resource *r,
+    struct resource_map *map);
+int	bus_release_resource_new(device_t dev, struct resource *r);
+
+#define	_BUS_API_MACRO(_1, _2, _3, _4, _5, NAME, ...)	NAME
+
+#define	bus_adjust_resource(...)					\
+	_BUS_API_MACRO(__VA_ARGS__, bus_adjust_resource,		\
+	    bus_adjust_resource_new)(__VA_ARGS__)
+
+#define	bus_activate_resource(...)					\
+	_BUS_API_MACRO(__VA_ARGS__, INVALID, bus_activate_resource,	\
+	    INVALID, bus_activate_resource_new)(__VA_ARGS__)
+
+#define	bus_deactivate_resource(...)					\
+	_BUS_API_MACRO(__VA_ARGS__, INVALID, bus_deactivate_resource,	\
+	    INVALID, bus_deactivate_resource_new)(__VA_ARGS__)
+
+#define	bus_map_resource(...)						\
+	_BUS_API_MACRO(__VA_ARGS__, bus_map_resource,			\
+	    bus_map_resource_new)(__VA_ARGS__)
+
+#define	bus_unmap_resource(...)						\
+	_BUS_API_MACRO(__VA_ARGS__, INVALID, bus_unmap_resource,	\
+	    bus_unmap_resource_new)(__VA_ARGS__)
+
+#define	bus_release_resource(...)					\
+	_BUS_API_MACRO(__VA_ARGS__, INVALID, bus_release_resource,	\
+	    INVALID, bus_release_resource_new)(__VA_ARGS__)
+
 /*
  * Access functions for device.
  */