[PATCH 23/29] of: Add of property write functions for u32

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 drivers/of/base.c |   25 +++++++++++++++++++++++++
 include/of.h      |   11 +++++++++++
 2 files changed, 36 insertions(+)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 8138a91..6b12979 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -349,6 +349,31 @@ int of_property_read_u32_array(const struct device_node *np,
 }
 EXPORT_SYMBOL_GPL(of_property_read_u32_array);
 
+int of_property_write_u32_array(struct device_node *np,
+				const char *propname, const u32 *values,
+				size_t sz)
+{
+	struct property *prop = of_find_property(np, propname);
+	__be32 *val;
+
+	if (!prop)
+		prop = of_new_property(np, propname, NULL, 0);
+	if (!prop)
+		return -ENOMEM;
+
+	free(prop->value);
+
+	prop->value = malloc(sizeof(__be32) * sz);
+	if (!prop->value)
+		return -ENOMEM;
+
+	val = prop->value;
+
+	while (sz--)
+		*val++ = cpu_to_be32(*values++);
+	return 0;
+}
+
 /**
  * of_parse_phandles_with_args - Find a node pointed by phandle in a list
  * @np:		pointer to a device tree node containing a list
diff --git a/include/of.h b/include/of.h
index 1db546c..b2f9ca7 100644
--- a/include/of.h
+++ b/include/of.h
@@ -94,6 +94,17 @@ static inline int of_property_read_u32(const struct device_node *np,
 	return of_property_read_u32_array(np, propname, out_value, 1);
 }
 
+int of_property_write_u32_array(struct device_node *np,
+				const char *propname, const u32 *values,
+				size_t sz);
+
+static inline int of_property_write_u32(struct device_node *np,
+					const char *propname,
+					u32 value)
+{
+	return of_property_write_u32_array(np, propname, &value, 1);
+}
+
 const void *of_get_property(const struct device_node *np, const char *name,
 			 int *lenp);
 
-- 
1.7.10.4