refactored kernel module, use the device-tree/of api's to fetch io adresses and irq for us. pi4 support added.
refactored kernel module, use the device-tree/of api's to fetch io adresses and irq for us. pi4 support added.

jgilje/reveller,jgilje/reveller,jgilje/reveller,jgilje/reveller,jgilje/reveller,jgilje/reveller,jgilje/reveller