regmap: i2c: fallback to SMBus if the adapter does not support standard I2C

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Some I2C adapters are only compatible with the SMBus protocol and do not
support standard I2C transfers.

Fallback to SMBus transfers if we encounter such kind of adapters.
The transfer type is chosen according to the val_bits field in the regmap
config.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

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Boris BREZILLON 2014-04-21 22:56:59 +02:00 • committed by Mark Brown

parent 3ac170376f

commit b42261078a

1 changed files with 102 additions and 2 deletions

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drivers/base/regmap/regmap-i2c.c

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