PCM_DAI_PCM_LOOPBACK_SFT  852 sound/soc/mediatek/mt6797/mt6797-reg.h #define PCM_DAI_PCM_LOOPBACK_SFT                            27
PCM_DAI_PCM_LOOPBACK_SFT  867 sound/soc/mediatek/mt8183/mt8183-reg.h #define PCM_DAI_PCM_LOOPBACK_SFT                      27