From: Krzysztof Kozlowski <krzk@xxxxxxxxxx> The Tegra USB PHY driver uses Common Clock Framework thus it cannot be built on platforms without it (e.g. compile test on MIPS with RALINK and SOC_RT305X): /usr/bin/mips-linux-gnu-ld: drivers/usb/phy/phy-tegra-usb.o: in function `tegra_usb_phy_init': phy-tegra-usb.c:(.text+0x1dd4): undefined reference to `clk_get_parent' Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- Changes since v1: 1. Depend on COMMON_CLK always, not only for compile test. --- drivers/usb/phy/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 52eebcb88c1f..7500e77a7d01 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -163,6 +163,7 @@ config USB_MXS_PHY config USB_TEGRA_PHY tristate "NVIDIA Tegra USB PHY Driver" depends on ARCH_TEGRA || COMPILE_TEST + depends on COMMON_CLK select USB_COMMON select USB_PHY select USB_ULPI -- 2.25.1