of/reconfig: Add debug output for OF_RECONFIG notifiers

Add some additional debug output to cover OF_RECONFIG notifier activity.
At the same time, refactor the changeset debug output to use the same
strings as the notifier debug output.

Signed-off-by: Grant Likely <grant.likely@linaro.org>

1 files changed, 32 insertions, 16 deletions

diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index 6659c39ab3aa..cc106529dca8 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -77,10 +77,38 @@ int of_reconfig_notifier_unregister(struct notifier_block *nb)
 }
 EXPORT_SYMBOL_GPL(of_reconfig_notifier_unregister);
 
+#ifdef DEBUG
+const char *action_names[] = {
+        [OF_RECONFIG_ATTACH_NODE] = "ATTACH_NODE",
+        [OF_RECONFIG_DETACH_NODE] = "DETACH_NODE",
+        [OF_RECONFIG_ADD_PROPERTY] = "ADD_PROPERTY",
+        [OF_RECONFIG_REMOVE_PROPERTY] = "REMOVE_PROPERTY",
+        [OF_RECONFIG_UPDATE_PROPERTY] = "UPDATE_PROPERTY",
+};
+#endif
+
 int of_reconfig_notify(unsigned long action, void *p)
 {
         int rc;
+#ifdef DEBUG
+        struct device_node *dn = p;
+        struct of_prop_reconfig *pr = p;
+
+        switch (action) {
+        case OF_RECONFIG_ATTACH_NODE:
+        case OF_RECONFIG_DETACH_NODE:
+                pr_debug("of/notify %-15s %s\n", action_names[action],
+                        dn->full_name);
+                break;
+        case OF_RECONFIG_ADD_PROPERTY:
+        case OF_RECONFIG_REMOVE_PROPERTY:
+        case OF_RECONFIG_UPDATE_PROPERTY:
+                pr_debug("of/notify %-15s %s:%s\n", action_names[action],
+                        pr->dn->full_name, pr->prop->name);
+                break;
 
+        }
+#endif
         rc = blocking_notifier_call_chain(&of_reconfig_chain, action, p);
         return notifier_to_errno(rc);
 }
@@ -431,27 +459,15 @@ static void __of_changeset_entry_dump(struct of_changeset_entry *ce)
 {
         switch (ce->action) {
         case OF_RECONFIG_ADD_PROPERTY:
-                pr_debug("%p: %s %s/%s\n",
-                        ce, "ADD_PROPERTY   ", ce->np->full_name,
-                        ce->prop->name);
-                break;
         case OF_RECONFIG_REMOVE_PROPERTY:
-                pr_debug("%p: %s %s/%s\n",
-                        ce, "REMOVE_PROPERTY", ce->np->full_name,
-                        ce->prop->name);
-                break;
         case OF_RECONFIG_UPDATE_PROPERTY:
-                pr_debug("%p: %s %s/%s\n",
-                        ce, "UPDATE_PROPERTY", ce->np->full_name,
-                        ce->prop->name);
+                pr_debug("of/cset<%p> %-15s %s/%s\n", ce, action_names[ce->action],
+                        ce->np->full_name, ce->prop->name);
                 break;
         case OF_RECONFIG_ATTACH_NODE:
-                pr_debug("%p: %s %s\n",
-                        ce, "ATTACH_NODE    ", ce->np->full_name);
-                break;
         case OF_RECONFIG_DETACH_NODE:
-                pr_debug("%p: %s %s\n",
-                        ce, "DETACH_NODE    ", ce->np->full_name);
+                pr_debug("of/cset<%p> %-15s %s\n", ce, action_names[ce->action],
+                        ce->np->full_name);
                 break;
         }
 }