Hi Andreas, On Sun, Jul 22, 2018 at 11:20:01PM +0200, Andreas Färber wrote: > diff --git a/arch/mips/boot/dts/img/pistachio_marduk.dts b/arch/mips/boot/dts/img/pistachio_marduk.dts > index d723b68084c9..b0b6b534a41f 100644 > --- a/arch/mips/boot/dts/img/pistachio_marduk.dts > +++ b/arch/mips/boot/dts/img/pistachio_marduk.dts > @@ -158,6 +158,20 @@ > <&gpio1 12 GPIO_ACTIVE_HIGH>, > <&gpio1 13 GPIO_ACTIVE_HIGH>, > <&gpio1 14 GPIO_ACTIVE_HIGH>; > + > + ca8210: sixlowpan@4 { > + compatible = "cascoda,ca8210"; > + reg = <4>; > + spi-max-frequency = <3000000>; > + spi-cpol; > + reset-gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>; > + irq-gpio = <&gpio2 12 GPIO_ACTIVE_HIGH>; > + > + extclock-enable; > + extclock-freq = <16000000>; > + extclock-gpio = <2>; /* spiuart_clk */ > + #clock-cells = <0>; > + }; dtc complains about the extclock-gpio property because it expects a property named *-gpio to contain a gpio-list: DTC arch/mips/boot/dts/img/pistachio_marduk.dtb arch/mips/boot/dts/img/pistachio_marduk.dtb: Warning (gpios_property): /spi@18100f00/sixlowpan@4: Missing property '#gpio-cells' in node /clk@18144000 or bad phandle (referred from extclock-gpio[0]) Rob, perhaps this should be added as a second false-positive case in dtc's prop_is_gpio()? Thanks, Paul