WM2200_DEVICE_REVISION 523 sound/soc/codecs/wm2200.c case WM2200_DEVICE_REVISION: WM2200_DEVICE_REVISION 549 sound/soc/codecs/wm2200.c case WM2200_DEVICE_REVISION: WM2200_DEVICE_REVISION 2297 sound/soc/codecs/wm2200.c ret = regmap_read(wm2200->regmap, WM2200_DEVICE_REVISION, ®);