Hi, Conor, [...] > > > > + imx219_clk: imx219-clock { > > > > + compatible = "fixed-clock"; > > > > + clock-output-names = "imx219_clk"; > > > > + clock-frequency = <24000000>; > > > > + #clock-cells = <0>; > > > > + }; > > > > > > Why do you need an output name here? > > > > The output name can be unnecessary. > > > > > Also, where does this clock come from? Is it an oscillator on the board? > > > > > > > This clock come from imx219, not the VisionFive 2 board. > > If the camera is not on the visionfive 2 board, why are you adding this to > visionfive-2.dtsi? It seems that I need to use dtso. Right? regards Changhuang