GREFCLK 5129 drivers/usb/dwc2/gadget.c dwc2_writel(hsotg, val, GREFCLK); GREFCLK 5130 drivers/usb/dwc2/gadget.c dev_dbg(hsotg->dev, "GREFCLK=0x%08x\n", dwc2_readl(hsotg, GREFCLK));