From: Thierry Reding <treding@nvidia.com>
Date: Thu, 21 Mar 2019 18:10:01 +0000 (+0100)
Subject: fdtdec: Implement fdtdec_set_phandle()
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=8153d53b9340e652f78efbf99979d951ba853458;p=u-boot.git

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 3f7538734a..ba7f873b89 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -1020,6 +1020,17 @@ int fdtdec_setup_memory_banksize_fdt(const void *blob);
  */
 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 a51dc5e986..079a9b18aa 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1261,6 +1261,13 @@ __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)