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dm: i2c: Add a function to find out the chip offset length

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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>
This commit is contained in:
Simon Glass 2015-05-04 11:30:58 -06:00
parent 59aa9df383
commit 01501804fd
2 changed files with 15 additions and 1 deletions
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9
include/i2c.h
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@ -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
*