fdtdec: Implement fdtdec_set_phandle()
This function can be used to set a phandle for a given node.
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 3f75387..ba7f873 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -1021,6 +1021,17 @@
int fdtdec_setup_memory_banksize(void);
/**
+ * fdtdec_set_phandle() - sets the phandle of a given node
+ *
+ * @param blob FDT blob
+ * @param node offset in the FDT blob of the node whose phandle is to
+ * be set
+ * @param phandle phandle to set for the given node
+ * @return 0 on success or a negative error code on failure
+ */
+int fdtdec_set_phandle(void *blob, int node, uint32_t phandle);
+
+/**
* Set up the device tree ready for use
*/
int fdtdec_setup(void);
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index a51dc5e..079a9b1 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1261,6 +1261,13 @@
}
#endif
+int fdtdec_set_phandle(void *blob, int node, uint32_t phandle)
+{
+ fdt32_t value = cpu_to_fdt32(phandle);
+
+ return fdt_setprop(blob, node, "phandle", &value, sizeof(value));
+}
+
int fdtdec_setup(void)
{
#if CONFIG_IS_ENABLED(OF_CONTROL)