[U-Boot] [PATCH 05/24] dm: i2c: Add a function to find out the chip offset length

Simon Glass
2015-05-04T17:30:58Z

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

Signed-off-by: Simon Glass <sjg@chromium.org>
---

drivers/i2c/i2c-uclass.c | 7 +++++++
include/i2c.h | 9 ++++++++-
2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index f2e95c0..2dfb435 100644
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -396,6 +396,13 @@ 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 6fd73fa..9a9e4f7 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -171,8 +171,15 @@ 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
*
--
2.2.0.rc0.207.ga3a616c