From 01501804fdab0c80e31d1aa221d8afb79d436e52 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 4 May 2015 11:30:58 -0600
Subject: dm: i2c: Add a function to find out the chip offset length

We can currently set this but there is no API function to get it. Add one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Heiko Schocher<hs@denx.de>

diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index b8eb2d6..eaba965 100644
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -415,6 +415,13 @@ int i2c_set_chip_offset_len(struct udevice *dev, uint offset_len)
 	return 0;
 }
 
+int i2c_get_chip_offset_len(struct udevice *dev)
+{
+	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);
+
+	return chip->offset_len;
+}
+
 int i2c_deblock(struct udevice *bus)
 {
 	struct dm_i2c_ops *ops = i2c_get_ops(bus);
diff --git a/include/i2c.h b/include/i2c.h
index 1e25986..ddfebc4 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -193,8 +193,15 @@ int i2c_get_chip_flags(struct udevice *dev, uint *flagsp);
  *
  * @offset_len:	New offset length value (typically 1 or 2)
  */
-
 int i2c_set_chip_offset_len(struct udevice *dev, uint offset_len);
+
+/**
+ * i2c_get_offset_len() - get the offset length for a chip
+ *
+ * @return:	Current offset length value (typically 1 or 2)
+ */
+int i2c_get_chip_offset_len(struct udevice *dev);
+
 /**
  * i2c_deblock() - recover a bus that is in an unknown state
  *
-- 
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