Select REGMAP_AC97 to fix these build errors: ERROR: modpost: "regmap_ac97_default_volatile" [sound/soc/codecs/snd-soc-stac9766.ko] undefined! ERROR: modpost: "__regmap_init_ac97" [sound/soc/codecs/snd-soc-stac9766.ko] undefined! Fixes: 6bbf787bb70c ("ASoC: stac9766: Convert to regmap") Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Lars-Peter Clausen <lars@xxxxxxxxxx> Cc: Mark Brown <broonie@xxxxxxxxxx> Cc: Liam Girdwood <lgirdwood@xxxxxxxxx> Cc: alsa-devel@xxxxxxxxxxxxxxxx --- sound/soc/codecs/Kconfig | 1 + 1 file changed, 1 insertion(+) diff -- a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -1693,6 +1693,7 @@ config SND_SOC_STA529 config SND_SOC_STAC9766 tristate depends on SND_SOC_AC97_BUS + select REGMAP_AC97 config SND_SOC_STI_SAS tristate "codec Audio support for STI SAS codec"