Function prototype or declaration at include/linux/usb/phy.h, line 195 References: drivers/usb/chipidea/ci_hdrc_imx.c, line 484 drivers/usb/core/hcd.c, line 3020 drivers/usb/core/hcd.c, line 3021 drivers/usb/dwc2/platform.c, line 526 drivers/usb/gadget/udc/mv_udc_core.c, line 2412 drivers/usb/gadget/udc/pxa25x_udc.c, line 2533 drivers/usb/gadget/udc/pxa27x_udc.c, line 2556 drivers/usb/host/ehci-fsl.c, line 674 drivers/usb/host/ehci-hcd.c, line 368 drivers/usb/host/ehci-hcd.c, line 819 drivers/usb/host/ehci-hcd.c, line 1128 drivers/usb/host/ehci-hcd.c, line 1143 drivers/usb/host/ehci-hcd.c, line 1164 drivers/usb/host/ehci-hcd.c, line 1204 drivers/usb/host/ehci-hub.c, line 385 drivers/usb/host/ehci-hub.c, line 386 drivers/usb/host/ehci-hub.c, line 438 drivers/usb/host/ehci-hub.c, line 439 drivers/usb/host/ehci-hub.c, line 457 drivers/usb/host/ehci-hub.c, line 458 drivers/usb/host/ehci-hub.c, line 482 drivers/usb/host/ehci-hub.c, line 483 drivers/usb/host/ehci-hub.c, line 502 drivers/usb/host/ehci-hub.c, line 503 drivers/usb/host/ehci-hub.c, line 510 drivers/usb/host/ehci-mv.c, line 103 drivers/usb/host/ehci-mv.c, line 304 drivers/usb/host/ehci-mv.c, line 305 drivers/usb/host/ehci-mv.c, line 311 drivers/usb/host/ehci-mxc.c, line 186 drivers/usb/host/ehci-omap.c, line 276 drivers/usb/host/ehci-platform.c, line 368 drivers/usb/host/ehci-tegra.c, line 543 drivers/usb/host/ehci-tegra.c, line 544 drivers/usb/host/ehci-tegra.c, line 550 drivers/usb/host/ohci-hcd.c, line 1176 drivers/usb/host/ohci-omap.c, line 461 drivers/usb/host/ohci-pxa27x.c, line 592 drivers/usb/phy/phy-am335x.c, line 68 drivers/usb/phy/phy-generic.c, line 330 drivers/usb/phy/phy-keystone.c, line 86 drivers/usb/phy/phy-mxs-usb.c, line 714