Re: [PATCH v9 2/2] i2c: riic: Recover from arbitration loss

[Lad, Prabhakar]

Hi Wolfram,

On Thu, May 1, 2025 at 8:44 PM Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
>
>
> > From 10µs to 50µs, the clock pulses are part of the recovery sequence.
>
> Ahh, that explains. I thought this was all after the recovery.
>
> > Around 55µs, the transfer function starts attempting to send data
> > hence the clock pulse.
>
> The short SCL spike around 55us is still strange. However, we might
> violate t:buf time between STOP and START. Can you please try the
> attached WIP patch?
>
I'm seeing the same behaviour as seen previously (attached is the capture).

> > The slave device is versa clock geberator 5P35023 (exact part number
> > on SMARC RZ/G2L 5P35023B-629NLGI)
>
> Hmm, G3S has a versa clock generator as well. But I can't find a way to
> wire GPIO lines to RIIC1 or I2C_PM.
>
Yes, same here apart from soldering the pins there seems to be no option.

Cheers,
Prabhakar

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