i2c: tegra: Synchronize DMA before termination

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DMA transfer could be completed, but CPU (which handles DMA interrupt)
may get too busy and can't handle the interrupt in a timely manner,
despite of DMA IRQ being raised. In this case the DMA state needs to
synchronized before terminating DMA transfer in order not to miss the
DMA transfer completion.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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Dmitry Osipenko 2020-03-24 22:12:17 +03:00 • committed by Thierry Reding

parent 566c05f7cd

commit a70ff65601

1 changed files with 9 additions and 0 deletions

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drivers/i2c/busses/i2c-tegra.c

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