randconfig build error with next-20140204, in sound/soc/codecs/wm8770.c

Building with the attached random configuration file,

sound/built-in.o: In function `wm8770_spi_probe':
wm8770.c:(.text+0x611f4): undefined reference to `devm_regmap_init_spi'
sound/built-in.o: In function `wm8770_spi_driver_init':
wm8770.c:(.init.text+0x3a05): undefined reference to `spi_register_driver'
make: *** [vmlinux] Error 1