[PATCH v2] arm64: dts: renesas: sparrow-hawk: Add overlay for WaveShare 2CH CANFD HAT

[Rob Herring]

On Wed, Sep 9, 2026 at 10:55 AM Marek Vasut <marek.vasut at mailbox.org> wrote:
>
> On 9/9/26 5:31 PM, Geert Uytterhoeven wrote:
>
> Hello Geert,
>
> >> +       /*
> >> +        * SPI_1 is operated as GPIO SPI, because MSIOF5 can not be
> >> +        * muxed on the pins allocated for SPI_1 on this CANFD HAT.
> >> +        */
> >> +       spi {   /* SPI_1 */
> >
> > As this lives at the root node, I'd rather change it back to
> > spi-ws-2ch-canfd while applying, if you don't mind?
> Please make sure the DT schema check does not complain about it,
> otherwise it is fine, thank you.

It does complain:

      1 spi-ws-2ch-canfd (spi-gpio): Unevaluated properties are not
allowed ('#address-cells', '#size-cells', 'can at 0' were unexpected)
      1 spi-ws-2ch-canfd (spi-gpio): $nodename:0: 'spi-ws-2ch-canfd'
does not match '^spi(@.*|-([0-9]|[1-9][0-9]+))?$'

The 1st warning is a side effect of the 2nd warning.

"spi-1" like the comment says if just "spi" does not work.

Rob