Getting a textual representation of a device node can be very useful for
debugging.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
---
Changes in v2:
- Use of_node_full_name()
drivers/base/property.c | 15 +++++++++++++++
include/linux/property.h | 2 ++
2 files changed, 17 insertions(+)
diff --git a/drivers/base/property.c b/drivers/base/property.c
index f3f6d167f3f1..efa74803af30 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -533,3 +533,18 @@ bool device_dma_is_coherent(struct device *dev)
return coherent;
}
EXPORT_SYMBOL_GPL(device_dma_is_coherent);
+
+/**
+ * fwnode_get_name - return the name of a device node
+ * @fwnode: Device node to find the name of
+ */
+const char *fwnode_get_name(struct fwnode_handle *fwnode)
+{
+ if (is_of_node(fwnode))
+ return of_node_full_name(to_of_node(fwnode));
+ else if (is_acpi_node(fwnode))
+ return acpi_dev_name(to_acpi_node(fwnode));
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(fwnode_get_name);
diff --git a/include/linux/property.h b/include/linux/property.h
index 76ebde9c11d4..826f156f7288 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -63,6 +63,8 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode,
struct fwnode_handle *device_get_next_child_node(struct device *dev,
struct fwnode_handle *child);
+const char *fwnode_get_name(struct fwnode_handle *fwnode);
+
#define device_for_each_child_node(dev, child) \
for (child = device_get_next_child_node(dev, NULL); child; \
child = device_get_next_child_node(dev, child))
--
2.4.3
--
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