Merge branch 'next'

Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index ced7f6ffb25..5b088650d3b 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -10,6 +10,7 @@
 /* TODO(sjg@chromium.org): Drop fdtdec.h include */
 #include <fdtdec.h>
 #include <dm/of.h>
+#include <dm/of_access.h>
 #include <log.h>
 
 /* Enable checks to protect against invalid calls */
@@ -218,6 +219,18 @@ static inline ofnode ofnode_null(void)
 	return node;
 }
 
+static inline ofnode ofnode_root(void)
+{
+	ofnode node;
+
+	if (of_live_active())
+		node.np = gd_of_root();
+	else
+		node.of_offset = 0;
+
+	return node;
+}
+
 /**
  * ofnode_read_u32() - Read a 32-bit integer from a property
  *
@@ -365,6 +378,49 @@ bool ofnode_read_bool(ofnode node, const char *propname);
  */
 ofnode ofnode_find_subnode(ofnode node, const char *subnode_name);
 
+#if CONFIG_IS_ENABLED(DM_INLINE_OFNODE)
+static inline bool ofnode_is_enabled(ofnode node)
+{
+	if (ofnode_is_np(node)) {
+		return of_device_is_available(ofnode_to_np(node));
+	} else {
+		return fdtdec_get_is_enabled(gd->fdt_blob,
+					     ofnode_to_offset(node));
+	}
+}
+
+static inline ofnode ofnode_first_subnode(ofnode node)
+{
+	assert(ofnode_valid(node));
+	if (ofnode_is_np(node))
+		return np_to_ofnode(node.np->child);
+
+	return offset_to_ofnode(
+		fdt_first_subnode(gd->fdt_blob, ofnode_to_offset(node)));
+}
+
+static inline ofnode ofnode_next_subnode(ofnode node)
+{
+	assert(ofnode_valid(node));
+	if (ofnode_is_np(node))
+		return np_to_ofnode(node.np->sibling);
+
+	return offset_to_ofnode(
+		fdt_next_subnode(gd->fdt_blob, ofnode_to_offset(node)));
+}
+#else
+/**
+ * ofnode_is_enabled() - Checks whether a node is enabled.
+ * This looks for a 'status' property. If this exists, then returns true if
+ * the status is 'okay' and false otherwise. If there is no status property,
+ * it returns true on the assumption that anything mentioned should be enabled
+ * by default.
+ *
+ * @node: node to examine
+ * @return false (not enabled) or true (enabled)
+ */
+bool ofnode_is_enabled(ofnode node);
+
 /**
  * ofnode_first_subnode() - find the first subnode of a parent node
  *
@@ -382,6 +438,7 @@ ofnode ofnode_first_subnode(ofnode node);
  * has no more siblings)
  */
 ofnode ofnode_next_subnode(ofnode node);
+#endif /* DM_INLINE_OFNODE */
 
 /**
  * ofnode_get_parent() - get the ofnode's parent (enclosing ofnode)