--- zzzz-none-000/linux-3.10.107/sound/soc/codecs/ak4671.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/soc/codecs/ak4671.h	2021-02-04 17:41:59.000000000 +0000
@@ -105,8 +105,6 @@
 #define AK4671_DIGITAL_MIXING_CONTROL2		0x59
 #define AK4671_SAR_ADC_CONTROL			0x5a
 
-#define AK4671_CACHEREGNUM			(AK4671_SAR_ADC_CONTROL + 1)
-
 /* Bitfield Definitions */
 
 /* AK4671_AD_DA_POWER_MANAGEMENT (0x00) Fields */