PCM_BUFFER_LOOPBACK_MASK_SFT  845 sound/soc/mediatek/mt6797/mt6797-reg.h #define PCM_BUFFER_LOOPBACK_MASK_SFT                        (0x1 << 30)
PCM_BUFFER_LOOPBACK_MASK_SFT  860 sound/soc/mediatek/mt8183/mt8183-reg.h #define PCM_BUFFER_LOOPBACK_MASK_SFT                  (0x1 << 30)