i2c: tegra: Prevent interrupt triggering after transfer timeout

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Potentially it is possible that interrupt may fire after transfer timeout.
That may not end up well for the next transfer because interrupt handling
may race with hardware resetting.

This is very unlikely to happen in practice, but anyway let's prevent the
potential problem by enabling interrupt only at the moments when it is
actually necessary to get some interrupt event.

Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Dmitry Osipenko 2020-01-14 04:34:37 +03:00 • committed by Wolfram Sang

parent d02e5ee09b

commit b5d5605ca3

1 changed files with 36 additions and 34 deletions

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drivers/i2c/busses/i2c-tegra.c

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