Consistently handle datablock init (#26282)

quantum/eeconfig.c

@@ -365,3 +365,21 @@ __attribute__((weak)) void eeconfig_init_user_datablock(void) {
     nvm_eeconfig_init_user_datablock();
 }
 #endif // (EECONFIG_USER_DATA_SIZE) > 0
+
+void eeconfig_prepare_datablocks(void) {
+#if (EECONFIG_KB_DATA_SIZE) > 0
+    if (!eeconfig_is_kb_datablock_valid()) {
+        eeconfig_init_kb_datablock();
+    }
+#endif // (EECONFIG_KB_DATA_SIZE) > 0
+
+#if (EECONFIG_USER_DATA_SIZE) > 0
+    if (!eeconfig_is_user_datablock_valid()) {
+        eeconfig_init_user_datablock();
+    }
+#endif // (EECONFIG_USER_DATA_SIZE) > 0
+
+#ifdef COMMUNITY_MODULES_ENABLE
+    eeconfig_prepare_modules_datablocks();
+#endif // COMMUNITY_MODULES_ENABLE
+}

quantum/eeconfig.h

@@ -63,6 +63,8 @@ void eeconfig_init_user(void);
 void eeconfig_enable(void);
 void eeconfig_disable(void);
 
+void eeconfig_prepare_datablocks(void);
+
 typedef union debug_config_t debug_config_t;
 void                         eeconfig_read_debug(debug_config_t *debug_config) __attribute__((nonnull));
 void                         eeconfig_update_debug(const debug_config_t *debug_config) __attribute__((nonnull));

quantum/keyboard.c

@@ -449,6 +449,8 @@ void quantum_init(void) {
 
     /* Also initialize layer state to trigger callback functions for layer_state */
     layer_state_set_kb((layer_state_t)layer_state);
+
+    eeconfig_prepare_datablocks();
 }
 
 /** \brief keyboard_init