Missing 'assigned-clocks' in usdhc node of i.MX8MQ/MM/MN dtsi?

[Schrempf Frieder]

Hi,

I wonder why imx8mq.dtsi, imx8mm.dtsi and imx8mn.dtsi have 
'assigned-clocks' and 'assigned-clock-rates' set for all usdhc nodes, 
except for usdhc2.

Is this on purpose? Is it a flaw?

Thanks,
Frieder

Extract from imx8mm.dtsi:

usdhc1: mmc@30b40000 {
	[...]
	assigned-clocks = <&clk IMX8MM_CLK_USDHC1>;
	assigned-clock-rates = <400000000>;
	[...]
};

usdhc2: mmc@30b50000 {
	compatible = "fsl,imx8mm-usdhc", "fsl,imx7d-usdhc";
	reg = <0x30b50000 0x10000>;
	interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&clk IMX8MM_CLK_DUMMY>,
		 <&clk IMX8MM_CLK_NAND_USDHC_BUS>,
		 <&clk IMX8MM_CLK_USDHC2_ROOT>;
	clock-names = "ipg", "ahb", "per";
	fsl,tuning-start-tap = <20>;
	fsl,tuning-step= <2>;
	bus-width = <4>;
	status = "disabled";
};

usdhc3: mmc@30b60000 {
	[...]
	assigned-clocks = <&clk IMX8MM_CLK_USDHC3_ROOT>;
	assigned-clock-rates = <400000000>;
	[...]
};