The MFD_OMAP_USB_HOST uses Common Clock Framework thus it cannot be built on platforms without it (e.g. compile test on MIPS with LANTIQ): mips-linux-ld: drivers/mfd/omap-usb-host.o: in function `usbhs_omap_probe': omap-usb-host.c:(.text+0x940): undefined reference to `clk_set_parent' Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- drivers/mfd/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index cc0b73280c68..fe79e8ff4669 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1442,6 +1442,7 @@ config MFD_TI_LMU config MFD_OMAP_USB_HOST bool "TI OMAP USBHS core and TLL driver" depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3 + depends on COMMON_CLK default y help This is the core driver for the OAMP EHCI and OHCI drivers. -- 2.25.1