SPI_MODE_MANUAL
case SPI_MODE_MANUAL: {
err = airoha_snand_set_mode(as_ctrl, SPI_MODE_MANUAL);
airoha_snand_set_mode(as_ctrl, SPI_MODE_MANUAL);
err = airoha_snand_set_mode(as_ctrl, SPI_MODE_MANUAL);
airoha_snand_set_mode(as_ctrl, SPI_MODE_MANUAL);
err = airoha_snand_set_mode(as_ctrl, SPI_MODE_MANUAL);