usb3_ref 649 drivers/clk/sprd/sc9860-clk.c static SPRD_MUX_CLK(usb3_ref, "usb3-ref", usb3_ref_parents, 0x2f8, usb3_ref 697 drivers/clk/sprd/sc9860-clk.c &usb3_ref.common, usb3_ref 741 drivers/clk/sprd/sc9860-clk.c [CLK_USB3_REF] = &usb3_ref.common.hw,