Re: [PATCH 3/3] arm64: dts: renesas: r9a09g047e57-smarc: Set I2C1 clock frequency to 1 MHz
From: Geert Uytterhoeven
Date: Mon Aug 10 2026 - 10:08:07 EST
Hi Tommaso,
On Mon, 3 Aug 2026 at 15:29, Tommaso Merciai
<tommaso.merciai.xr@xxxxxxxxxxxxxx> wrote:
> On the SMARC carrier board I2C1 only carries the DA7212 audio codec.
> Override the 100 kHz SoC default with 1 MHz.
>
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
Thanks for your patch!
According to the DA7212 documentation, it supports 3.4 MHz, too.
But given the I2C bus is also exposed on PMOD, GPIO, and M2 connectors,
1 MHz is probably the safer value.
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
i.e. will queue in renesas-devel for v7.4.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds