[PATCH v1 1/2] i2c: spacemit: Avoid sleeping during bus reset in atomic context

[Anand Moon]

Hi Troy,

On Tue, 10 Nov 2026 at 12:19, Troy Mitchell
<troy.mitchell at linux.spacemit.com> wrote:
>
> On Tue Nov 10, 2026 at 6:14 AM GMT, Anand Moon wrote:
> > The spacemit_i2c_conditionally_reset_bus() function uses usleep_range()
> > to wait after triggering a bus reset request. However, this function can
> > be invoked during atomic I2C transfers (such as power-off or restart
> > handlers running in atomic notifier chains), where sleeping is illegal.
> >
> > Replace the sleep operation with the driver's internal helper,
> > spacemit_i2c_delay(), which conditionally uses udelay() when running in
> > an atomic context, avoiding "scheduling while atomic" bugs.
> >
> > Assisted-by: LLM
> Also, please drop this tag. The same applies to patch 2.
> See commit 1e035297ffda.
>
Ok once I get positive feedback on both patches, I will drop this tag
and resubmit.
> --
> Troy Mitchell
>
Thanks
-Anand