Re: [PATCH 1/4] i2c: riic: Abort the transfer on completion timeout

[Claudiu Beznea]

Hi, Wolfram,

On 5/28/26 16:57, Wolfram Sang wrote:
> On Wed, May 20, 2026 at 04:12:03PM +0300, Claudiu Beznea wrote:
> > From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
> >
> > riic_xfer() configures a transfer and waits for the interrupt handler to
> > signal its completion. If the completion times out, the device may be
> > powered off through runtime PM. However, the transfer interrupt may still
> > fire after the timeout.
> >
> > To avoid cases where riic_xfer() powers off the device (via runtime PM)
> > while the interrupt handler is still running, disable and synchronize the
> > interrupts after the completion times out.
> >
> > Fixes: 310c18a41450 ("i2c: riic: add driver")
> > Cc: stable@xxxxxxxxxxxxxxx
> > Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
>
> How did you test this?

I haven't managed to reproduce it on i2c. I reproduced a similar behavior while 
working on renesas-i3c driver and decided to implement this on this i2c driver 
as well.

--
Thank you,
Claudiu