From: Thierry Reding <tred...@nvidia.com>
This function can be used to set a phandle for a given node.
Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
Changes in v2:
- don't emit deprecated linux,phandle property
include/fdtdec.h | 11 +++++++++++
lib/fdtdec.c | 7 +++++++
2 files changed, 18 insertions(+)
diff --git a/include/fdtdec.h b/include/fdtdec.h
index b593c562584d..eb076fc24bc9 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -993,6 +993,17 @@ int fdtdec_setup_memory_banksize(void);
*/
int fdtdec_generate_phandle(const void *blob, uint32_t *phandle);
+/**
+ * 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
*/
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index d384c84feb33..04d242cdf38e 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1271,6 +1271,13 @@ int fdtdec_generate_phandle(const void *blob, uint32_t
*phandle)
return 0;
}
+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)
--
2.20.1
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