SPI device not detected

Hi, I am using Asus Flip S UX370UAF with ArchLinux. When I tried to list available devices, there were none. 
However with cmd 
`cat /sys/bus/acpi/devices/*/path | grep "\.SPI\|\.FPNT"`

I have output
```
\_SB_.PCI0.SPI0
\_SB_.PCI0.SPI1.FPNT
\_SB_.PCI0.SPI0.SPBA
\_SB_.PCI0.SPI1
```
Is there any way I can modify the code to get it to work? 

Thanks in advance.
Jack Lu
