randconfig build error with next-20150710, in drivers/rtc/rtc-snvs.c

Building with the attached random configuration file, drivers/built-in.o: In function `snvs_rtc_probe': rtc-snvs.c:(.text+0xb6819): undefined reference to `devm_regmap_init_mmio_clk' # # Automatically generated file; DO NOT EDIT. # Linux/x86 4.2.0-rc1 Kernel Configuration # CONFIG_64BIT=y

randconfig build error with next-20150710, in drivers/rtc/rtc-snvs.c

Building with the attached random configuration file, drivers/built-in.o: In function `snvs_rtc_probe': rtc-snvs.c:(.text+0xb6819): undefined reference to `devm_regmap_init_mmio_clk' # # Automatically generated file; DO NOT EDIT. # Linux/x86 4.2.0-rc1 Kernel Configuration # CONFIG_64BIT=y