hello xianchao.zhang,
yes, that might be the issue of pixel clock rate settings.
please refer to developer guide, Sensor Pixel Clock.
BTW, here’s another example to calculate CSI date rate, i.e. 4K(3840x2160),90-fps,10-bit.
CSI data-rate = 3840 * 2160 * 10 * 90 * 1.15 ~= 8.584 Gbps