Re: [PATCH v2 1/2] i2c: tegra: Better handle case where CPU0 is busy for a long time

Wolfram Sang
2020-04-15T16:31:34Z

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On Tue, Mar 24, 2020 at 10:12:16PM +0300, Dmitry Osipenko wrote:
> Boot CPU0 always handle I2C interrupt and under some rare circumstances
> (like running KASAN + NFS root) it may stuck in uninterruptible state for
> a significant time. In this case we will get timeout if I2C transfer is
> running on a sibling CPU, despite of IRQ being raised. In order to handle
> this rare condition, the IRQ status needs to be checked after completion
> timeout.
>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>

Applied to for-current, thanks!

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