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i2c

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    i2c: davinci: use bus recovery infrastructure
    Grygorii Strashko authored and Wolfram Sang committed 
    This patch converts Davinci I2C driver to use I2C bus recovery
infrastructure, introduced by commit 5f9296ba ("i2c: Add
bus recovery infrastructure").

The i2c_bus_recovery_info is configured for Davinci I2C adapter
only in case scl_pin is provided in platform data.

As the controller must be held in reset while doing so, the
recovery routine must re-init the controller. Since this was already
being done after each call to i2c_recover_bus, move those calls into
the recovery_prepare/unprepare routines and as well.

Acked-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
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