[PATCH] arm64: dts: mediatek: mt7981b: Add PMU

[Peter Collingbourne]

On Mon, May 4, 2026 at 11:49 PM Sjoerd Simons <sjoerd at collabora.com> wrote:
>
> On Sat, 2026-05-02 at 00:49 -0700, Peter Collingbourne wrote:
> > The interrupt number was taken from a downstream DTS of the similar MT7987
> > [1] and verified on my OpenWrt One.
> >
> > Signed-off-by: Peter Collingbourne <peter at pcc.me.uk>
> > Link: [1]
> > https://github.com/openwrt/openwrt/blob/e4b3d5c799aef3be20b7f6079e8e5a14b215c116/target/linux/mediatek/dts/mt7987.dtsi#L246
> > ---
> >  arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> > b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> > index 4084f4dfa3e5..3c6fbb6c5333 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> > @@ -38,6 +38,12 @@ oscillator-40m {
> >               #clock-cells = <0>;
> >       };
> >
> > +     pmu {
> > +             compatible = "arm,cortex-a53-pmu";
> > +             interrupt-parent = <&gic>;
>
> The parent node already specifies the interrupt-parent, so this is redundant.
>
> > +             interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
> > +     };
> > +
>
> Otherwise looks good

Thanks, sent v2 with removed interrupt-parent.

Peter