Hi Chris > +required: > + - compatible > + - reg > + - interrupts https://elixir.bootlin.com/linux/latest/source/drivers/mmc/host/sdhci-dove.c#L78 https://elixir.bootlin.com/linux/latest/source/arch/arm/boot/dts/dove.dtsi#L344 Dove does actually have a clock. It looks like it is optional in the driver, but the .dtsi file has it. It is not documented in the current .txt file, so i can understand you missing it. I'm surprised the DT tools didn't complain about an unexpected property. Andrew
