PCM_I2S_PCM_LOOPBACK_SFT  855 sound/soc/mediatek/mt6797/mt6797-reg.h #define PCM_I2S_PCM_LOOPBACK_SFT                            26
PCM_I2S_PCM_LOOPBACK_SFT  870 sound/soc/mediatek/mt8183/mt8183-reg.h #define PCM_I2S_PCM_LOOPBACK_SFT                      26