[U-Boot] [PATCH v3 04/13] fdtdec: Implement fdtdec_set_phandle()

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

This function can be used to set a phandle for a given node.

Signed-off-by: Thierry Reding <treding at 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 a0ba57c6318b..55600026c488 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -981,6 +981,17 @@ int fdtdec_setup_mem_size_base(void);
  */
 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
  */
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 09a7e133a539..00db90e3cdfd 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1243,6 +1243,13 @@ __weak void *board_fdt_blob_setup(void)
 }
 #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)
-- 
2.21.0