greybus: add write retry support for i2c

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It is expected that i2c writes may fail, and in that case the driver
simply retries some number of times before actually treating it as a
failure.  Define a GB_OP_RETRY status, which is interpreted by the
i2c driver as an indication a retry is in order.  We just translate
that into an EAGAIN error passed back to the i2c core.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

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Alex Elder 2014-10-17 05:09:21 -05:00 • committed by Greg Kroah-Hartman

parent bb2e1c9626

commit d75286852b

2 changed files with 9 additions and 4 deletions

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10

drivers/staging/greybus/i2c-gb.c

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3

drivers/staging/greybus/operation.h

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