[PATCH v3 2/2] i2c: i2c-xiic: fix waiting/clearing while atomic

[Thilo Zirnstein]

Hi Shubhrajyoti, 

Thanks for your review.

On Fri, Oct 30, 2026 at 08:16:34PM +0530, Shubhrajyoti Datta wrote:
> On Fri, Oct 16, 2026 at 6:24 PM Thilo Zirnstein <thi.zirnstein at gmail.com> wrote:
> >
> > Use non jiffies based waiting functions,
> > if in atomic context.
> >
> > Suggested-by: Andi Shyti <andi.shyti at kernel.org>
> > Signed-off-by: Thilo Zirnstein <thi.zirnstein at gmail.com>
> > ---
> >  drivers/i2c/busses/i2c-xiic.c | 28 +++++++++++++++++++++++-----
> >  1 file changed, 23 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
> > index e68e17bdf0ba..fc9a0628cb67 100644
> > --- a/drivers/i2c/busses/i2c-xiic.c
> > +++ b/drivers/i2c/busses/i2c-xiic.c
> > @@ -359,16 +359,28 @@ static inline void xiic_irq_clr_en(struct xiic_i2c *i2c, u32 mask)
> >         xiic_irq_en(i2c, mask);
> >  }
> >
> > +static int xiic_poll_rx_empty(struct xiic_i2c *i2c)
> > +{
> > +       if (xiic_getreg8(i2c, XIIC_SR_REG_OFFSET) &
> > +           XIIC_SR_RX_FIFO_EMPTY_MASK)
> > +               return 1;
> > +
> > +       xiic_getreg8(i2c, XIIC_DRR_REG_OFFSET);
> > +       return 0;
> > +}
> > +
> >  static int xiic_clear_rx_fifo(struct xiic_i2c *i2c)
> >  {
> > -       u8 sr;
> > +       int rx_empty;
> >         unsigned long timeout;
> >
> > +       if (i2c->atomic)
> > +               return read_poll_timeout_atomic(xiic_poll_rx_empty,
> > +                               rx_empty, rx_empty, 10, XIIC_I2C_TIMEOUT,
> > +                               0, i2c);
> > +
> read_poll_timeout_atomic() expects its timeout argument in
> microseconds  the current one is jiffies. Can you check it.

Ack

kind regards, 

Thilo