device: only define/initialize metadata for DT devices

Check if node identifier is valid to define and initialize device
metadata. Without this patch, "software devices", ie, DEVICE_DEFINE,
would fail to compile when enabling the device metadata feature.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>

include/zephyr/device.h

@@ -1008,10 +1008,11 @@ device_get_dt_nodelabels(const struct device *dev)
  * @param api_ Reference to device API ops.
  * @param state_ Reference to device state.
  * @param deps_ Reference to device dependencies.
+ * @param node_id_ Devicetree node identifier
  * @param dev_id_ Device identifier token, as passed to Z_DEVICE_BASE_DEFINE
  */
-#define Z_DEVICE_INIT(name_, pm_, data_, config_, api_, state_, deps_,  \
-  dev_id_) \
+#define Z_DEVICE_INIT(name_, pm_, data_, config_, api_, state_, deps_, node_id_, \
+  dev_id_)  \
  { \
  .name = name_, \
  .config = (config_), \
@@ -1021,7 +1022,9 @@ device_get_dt_nodelabels(const struct device *dev)
  IF_ENABLED(CONFIG_DEVICE_DEPS, (.deps = (deps_),)) /**/ \
  IF_ENABLED(CONFIG_PM_DEVICE, ({ .pm_base = (pm_),},)) /**/ \
  IF_ENABLED(CONFIG_DEVICE_DT_METADATA, \
- (.dt_meta = &Z_DEVICE_DT_METADATA_NAME_GET(dev_id_),)) \
+ (IF_ENABLED(DT_NODE_EXISTS(node_id_), \
+ (.dt_meta = &Z_DEVICE_DT_METADATA_NAME_GET( \
+ dev_id_),)))) \
  }
 
 /**
@@ -1056,7 +1059,7 @@ device_get_dt_nodelabels(const struct device *dev)
  STRUCT_SECTION_ITERABLE_NAMED_ALTERNATE( \
  device, COND_CODE_1(Z_DEVICE_IS_MUTABLE(node_id), (device_mutable), (device)), \
  Z_DEVICE_SECTION_NAME(level, prio), DEVICE_NAME_GET(dev_id)) = \
- Z_DEVICE_INIT(name, pm, data, config, api, state, deps, dev_id)
+ Z_DEVICE_INIT(name, pm, data, config, api, state, deps, node_id, dev_id)
 
 /* deprecated device initialization levels */
 #define Z_DEVICE_LEVEL_DEPRECATED_EARLY \
@@ -1142,7 +1145,8 @@ device_get_dt_nodelabels(const struct device *dev)
  (Z_DEVICE_DEPS_DEFINE(node_id, dev_id, __VA_ARGS__);)) \
  \
  IF_ENABLED(CONFIG_DEVICE_DT_METADATA, \
- (Z_DEVICE_DT_METADATA_DEFINE(node_id, dev_id);)) \
+ (IF_ENABLED(DT_NODE_EXISTS(node_id), \
+ (Z_DEVICE_DT_METADATA_DEFINE(node_id, dev_id);))))\
  \
  Z_DEVICE_BASE_DEFINE(node_id, dev_id, name, pm, data, config, level, \
  prio, api, state, Z_DEVICE_DEPS_NAME(dev_id)); \