STM32_I2S_IPIDR_REG 297 sound/soc/stm/stm32_i2s.c case STM32_I2S_IPIDR_REG: STM32_I2S_IPIDR_REG 926 sound/soc/stm/stm32_i2s.c ret = regmap_read(i2s->regmap, STM32_I2S_IPIDR_REG, &val);