It's sometimes useful to get the device associated with a given ofnode.
Implement a function to implement this lookup operation.
Signed-off-by: Mario Six <mario....@gdsys.cc>
---
drivers/core/ofnode.c | 15 +++++++++++++++
include/dm/ofnode.h | 8 ++++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 4e4532651f..ca002063b3 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -16,6 +16,21 @@
#include <linux/err.h>
#include <linux/ioport.h>
+struct udevice *ofnode_dev(ofnode node)
+{
+ struct uclass *uc;
+ struct udevice *dev;
+
+ list_for_each_entry(uc, &gd->uclass_root, sibling_node) {
+ list_for_each_entry(dev, &uc->dev_head, uclass_node) {
+ if (ofnode_equal(dev_ofnode(dev), node))
+ return dev;
+ }
+ }
+
+ return NULL;
+}
+
int ofnode_read_u32(ofnode node, const char *propname, u32 *outp)
{
assert(ofnode_valid(node));
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index 0d008404f9..aec205eb80 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -193,6 +193,14 @@ static inline ofnode ofnode_null(void)
return node;
}
+/**
+ * ofnode_dev() - Get the device associated with a given ofnode
+ *
+ * @node: valid node reference to get the corresponding device for
+ * @return a pointer to the udevice if OK, NULL on error
+ */
+struct udevice *ofnode_dev(ofnode node);
+
/**
* ofnode_read_u32() - Read a 32-bit integer from a property
*
--
2.16.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
