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Re: [PATCH V2 2/2] drivers: i2c: qup: Fix error handling

From Wolfram Sang <wsa@the-dreams.de>
Newsgroups linux.kernel
Subject Re: [PATCH V2 2/2] drivers: i2c: qup: Fix error handling
Date 2016-05-13 14:00 +0200
Message-ID <ryjV7-2yY-13@gated-at.bofh.it> (permalink)
References <rvMgW-466-13@gated-at.bofh.it> <rvMgW-466-11@gated-at.bofh.it> <ryjLs-2sD-15@gated-at.bofh.it>
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On Fri, May 13, 2016 at 01:48:23PM +0200, Wolfram Sang wrote:
> On Fri, May 06, 2016 at 05:01:14PM +0530, Sricharan R wrote:
> > Among the bus errors reported from the QUP_MASTER_STATUS register
> > only NACK is considered and transfer gets suspended, while
> > other errors are ignored. Correct this and suspend the transfer
> > for other errors as well. This avoids unnessecary 'timeouts' which
> > happens when waiting for events that would never happen when there
> > is already an error condition on the bus.
> > 
> > Signed-off-by: Sricharan R <sricharan@codeaurora.org>
> > Reviewed-by: Andy Gross <andy.gross@linaro.org>
> 
> Please check Documentation/i2c/fault-codes for proper fault codes.

And while we are here: NACK is not an error but a valid response. Can
you remove the dev_err related to that? Otherwise tools like i2cdetect
will probably flood your log.

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Thread

Re: [PATCH V2 2/2] drivers: i2c: qup: Fix error handling Wolfram Sang <wsa@the-dreams.de> - 2016-05-13 13:50 +0200
  Re: [PATCH V2 2/2] drivers: i2c: qup: Fix error handling Wolfram Sang <wsa@the-dreams.de> - 2016-05-13 14:00 +0200
    RE: [PATCH V2 2/2] drivers: i2c: qup: Fix error handling "Sricharan" <sricharan@codeaurora.org> - 2016-05-16 08:00 +0200

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