[U-Boot] [PATCH 1/2] dm: core: Add functions to read 64-bit dt properties

[Michal Simek]

From: T Karthik Reddy <t.karthik.reddy at xilinx.com>

This patch adds functions dev_read_u64_default & dev_read_u64
to read unsigned 64-bit values from devicetree.

Signed-off-by: T Karthik Reddy <t.karthik.reddy at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 drivers/core/ofnode.c |  2 +-
 drivers/core/read.c   | 10 ++++++++++
 include/dm/ofnode.h   |  2 +-
 include/dm/read.h     | 32 ++++++++++++++++++++++++++++++++
 4 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index e74a662d1d30..7eca00cd6613 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -79,7 +79,7 @@ int ofnode_read_u64(ofnode node, const char *propname, u64 *outp)
 	return 0;
 }
 
-int ofnode_read_u64_default(ofnode node, const char *propname, u64 def)
+u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def)
 {
 	assert(ofnode_valid(node));
 	ofnode_read_u64(node, propname, &def);
diff --git a/drivers/core/read.c b/drivers/core/read.c
index 8b5502de1159..5dd2ddca70e8 100644
--- a/drivers/core/read.c
+++ b/drivers/core/read.c
@@ -11,6 +11,16 @@
 #include <mapmem.h>
 #include <dm/of_access.h>
 
+int dev_read_u64(struct udevice *dev, const char *propname, u64 *outp)
+{
+	return ofnode_read_u64(dev_ofnode(dev), propname, outp);
+}
+
+u64 dev_read_u64_default(struct udevice *dev, const char *propname, u64 def)
+{
+	return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
+}
+
 int dev_read_u32(struct udevice *dev, const char *propname, u32 *outp)
 {
 	return ofnode_read_u32(dev_ofnode(dev), propname, outp);
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index 4f89db44c19e..5c4cbf099869 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -254,7 +254,7 @@ int ofnode_read_u64(ofnode node, const char *propname, u64 *outp);
  * @def:	default value to return if the property has no value
  * @return property value, or @def if not found
  */
-int ofnode_read_u64_default(ofnode node, const char *propname, u64 def);
+u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def);
 
 /**
  * ofnode_read_string() - Read a string from a property
diff --git a/include/dm/read.h b/include/dm/read.h
index 0c62d62f1148..8985f248c68f 100644
--- a/include/dm/read.h
+++ b/include/dm/read.h
@@ -44,6 +44,26 @@ static inline bool dev_of_valid(struct udevice *dev)
 }
 
 #ifndef CONFIG_DM_DEV_READ_INLINE
+/**
+ * dev_read_u64() - read a 64-bit integer from a device's DT property
+ *
+ * @dev:        device to read DT property from
+ * @propname:   name of the property to read from
+ * @outp:       place to put value (if found)
+ * @return 0 if OK, -ve on error
+ */
+int dev_read_u64(struct udevice *dev, const char *propname, u64 *outp);
+
+/**
+ * dev_read_u64_default() - read a 64-bit integer from a device's DT property
+ *
+ * @dev:        device to read DT property from
+ * @propname:   name of the property to read from
+ * @def:        default value to return if the property has no value
+ * @return property value, or @def if not found
+ */
+u64 dev_read_u64_default(struct udevice *dev, const char *propname, u64 def);
+
 /**
  * dev_read_u32() - read a 32-bit integer from a device's DT property
  *
@@ -563,6 +583,18 @@ int dev_read_alias_highest_id(const char *stem);
 
 #else /* CONFIG_DM_DEV_READ_INLINE is enabled */
 
+static inline int dev_read_u64(struct udevice *dev,
+			       const char *propname, u64 *outp)
+{
+	return ofnode_read_u64(dev_ofnode(dev), propname, outp);
+}
+
+static inline u64 dev_read_u64_default(struct udevice *dev,
+				       const char *propname, u64 def)
+{
+	return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
+}
+
 static inline int dev_read_u32(struct udevice *dev,
 			       const char *propname, u32 *outp)
 {
-- 
2.17.1