dm: core: Add helper to compare node names
Add helper to compare node names.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20210721155849.20994-2-kishon@ti.com
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index dda6c76..701b23e 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -18,6 +18,19 @@
#include <linux/ioport.h>
#include <asm/global_data.h>
+bool ofnode_name_eq(ofnode node, const char *name)
+{
+ const char *node_name;
+ size_t len;
+
+ assert(ofnode_valid(node));
+
+ node_name = ofnode_get_name(node);
+ len = strchrnul(node_name, '@') - node_name;
+
+ return (strlen(name) == len) && !strncmp(node_name, name, len);
+}
+
int ofnode_read_u32(ofnode node, const char *propname, u32 *outp)
{
return ofnode_read_u32_index(node, propname, 0, outp);
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index 3da05d8..4e1a844 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -232,6 +232,16 @@
}
/**
+ * ofnode_name_eq() - Check if the node name is equivalent to a given name
+ * ignoring the unit address
+ *
+ * @node: valid node reference that has to be compared
+ * @name: name that has to be compared with the node name
+ * @return true if matches, false if it doesn't match
+ */
+bool ofnode_name_eq(ofnode node, const char *name);
+
+/**
* ofnode_read_u32() - Read a 32-bit integer from a property
*
* @ref: valid node reference to read property from