refactor(core): Use /omit-if-no-ref/ for behaviors.

* Use lesser-known DT features to skip behaviors not referenced
  in the user keymap
* Update the behaviors to skip code if no nodes found.
* Remove some empty config/data structs where unused in
  behaviors.

1 files changed, 5 insertions, 8 deletions

diff --git a/app/src/behaviors/behavior_transparent.c b/app/src/behaviors/behavior_transparent.c
index ca3d279..e9d49b2 100644
--- a/app/src/behaviors/behavior_transparent.c
+++ b/app/src/behaviors/behavior_transparent.c
@@ -15,8 +15,7 @@
 
 LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
 
-struct behavior_transparent_config {};
-struct behavior_transparent_data {};
+#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
 
 static int behavior_transparent_init(const struct device *dev) { return 0; };
 
@@ -35,10 +34,8 @@ static const struct behavior_driver_api behavior_transparent_driver_api = {
     .binding_released = on_keymap_binding_released,
 };
 
-static const struct behavior_transparent_config behavior_transparent_config = {};
+DEVICE_AND_API_INIT(behavior_transparent, DT_INST_LABEL(0), behavior_transparent_init, NULL, NULL,
+                    APPLICATION, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
+                    &behavior_transparent_driver_api);
 
-static struct behavior_transparent_data behavior_transparent_data;
-
-DEVICE_AND_API_INIT(behavior_transparent, DT_INST_LABEL(0), behavior_transparent_init,
-                    &behavior_transparent_data, &behavior_transparent_config, APPLICATION,
-                    CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &behavior_transparent_driver_api);
\ No newline at end of file
+#endif /* DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) */
\ No newline at end of file