Function prototype or declaration at include/linux/phy/phy.h, line 236 References: drivers/gpu/drm/bridge/analogix/analogix_dp_core.c, line 1689 drivers/gpu/drm/bridge/cdns-dsi.c, line 1208 drivers/gpu/drm/bridge/nwl-dsi.c, line 962 drivers/gpu/drm/exynos/exynos_drm_dsi.c, line 1801 drivers/gpu/drm/mediatek/mtk_dsi.c, line 1107 drivers/gpu/drm/mediatek/mtk_hdmi.c, line 1741 drivers/gpu/drm/rockchip/rockchip_lvds.c, line 498 drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c, line 1177 drivers/gpu/drm/xlnx/zynqmp_dp.c, line 476 drivers/media/platform/exynos4-is/mipi-csis.c, line 796 drivers/mmc/host/sdhci-of-arasan.c, line 1626 drivers/pci/controller/cadence/pcie-cadence.c, line 198 drivers/pci/controller/dwc/pci-dra7xx.c, line 892 drivers/pci/controller/dwc/pci-meson.c, line 526 drivers/pci/controller/dwc/pcie-histb.c, line 406 drivers/pci/controller/dwc/pcie-intel-gw.c, line 296 drivers/pci/controller/dwc/pcie-spear13xx.c, line 249 drivers/pci/controller/dwc/pcie-tegra194.c, line 2146 drivers/pci/controller/pcie-rockchip.c, line 304 drivers/phy/amlogic/phy-meson-axg-pcie.c, line 162 drivers/phy/phy-core.c, line 730 drivers/phy/phy-core.c, line 748 drivers/phy/phy-core.c, line 765 drivers/scsi/ufs/ufs-exynos.c, line 980 drivers/scsi/ufs/ufs-qcom.c, line 1237 drivers/staging/media/rkisp1/rkisp1-dev.c, line 195 drivers/staging/mt7621-pci/pci-mt7621.c, line 375 drivers/usb/chipidea/core.c, line 1030 drivers/usb/dwc2/platform.c, line 237 drivers/usb/dwc3/core.c, line 1150 drivers/usb/dwc3/core.c, line 1163 drivers/usb/musb/da8xx.c, line 526 drivers/usb/musb/musb_dsps.c, line 445 drivers/usb/musb/omap2430.c, line 197 drivers/usb/musb/sunxi.c, line 755 include/linux/phy/phy.h, line 236 include/linux/phy/phy.h, line 403