Re: [PATCH 2/2] arm64: dts: renesas: r9a09g047e57-smarc: Add overlay for P3T1085UK-ARD

From: Tommaso Merciai

Date: Thu Nov 20 2025 - 06:07:41 EST


Hi Wolfram,
Thanks for your review!

On Wed, Nov 19, 2025 at 07:12:56AM +0100, Wolfram Sang wrote:
>
> > Your suggestion is to keep only Patch 1/2 dropping alias line right?
>
> Yes.
>
> We could think about enabling I3C unconditionally by adding this to
> rzg3e-smarc-som.dtsi:

Fine to me. Thank you.

>
> + i2c-scl-hz = <400000>;
> + i3c-scl-hz = <12500000>;
> + status = "okay";
>
> So, I3C will just work when you connect devices to it. The I3C frequency
> might be depending a bit on the I3C target board and how it is wired.
> Maybe use 10Mhz as a safe value and add a comment?
>

Since our current testing setup works fine with 12.5 MHz, I would go with that.
If another target board is used, it can override this value in its board overlay.

I will send v2 addressing your comments.

Kind Regards,
Tommaso