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

[Sjoerd Simons]

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

Regards,
-- 
Sjoerd Simons
Collabora