Re: [PATCH 1/3] arm64: dts: renesas: r9a08g046: Add USB2.0 placeholder nodes

From: Geert Uytterhoeven

Date: Mon Aug 24 2026 - 10:37:24 EST


Hi Tommaso,

On Tue, 18 Aug 2026 at 16:29, Tommaso Merciai
<tommaso.merciai.xr@xxxxxxxxxxxxxx> wrote:
> The USB2.0 wiring on the RZ SMARC Carrier-II board is the same for the
> RZ/G3E and RZ/G3L SoMs, so the nodes belong in the shared
> renesas-smarc2.dtsi. Enabling them there breaks the RZ/G3L SMARC EVK
> build, as the r9a08g046 (RZ/G3L) SoC DTSI describes neither the USB2.0
> host (OHCI/EHCI) nor function (HSUSB) instances:
>
> Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:94.1-7 Label or path ehci0 not found
> Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:99.1-7 Label or path ehci1 not found
> Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:104.1-8 Label or path hsusb0 not found
> Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:114.1-7 Label or path ohci0 not found
> Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:119.1-7 Label or path ohci1 not found
>
> Add minimal placeholder nodes carrying only the reg property.
> The remaining properties will be filled in once USB2.0 support for
> RZ/G3L is complete.
>
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/renesas/r9a08g046.dtsi | 25 ++++++++++++++++++++++

FTR, this conflicts with Biju's "[PATCH v7 6/9] arm64: dts: renesas:
r9a08g046: Add USB2.0 host/phy device nodes". which does add the real
device nodes.

[1] https://lore.kernel.org/20260812141940.246223-7-biju.das.jz@xxxxxxxxxxxxxx

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