stm32_sai_sub_readable_reg 242 sound/soc/stm/stm32_sai_sub.c .readable_reg = stm32_sai_sub_readable_reg, stm32_sai_sub_readable_reg 254 sound/soc/stm/stm32_sai_sub.c .readable_reg = stm32_sai_sub_readable_reg,