refactor: add display.Pin interface and use it everywhere that is easy to do so

Signed-off-by: deadprogram <ron@hybridgroup.com>

gc9a01/gc9a01.go

@@ -5,7 +5,6 @@ package gc9a01 // import "tinygo.org/x/drivers/gc9a01"
 
 import (
 	"image/color"
-	"machine"
 	"time"
 
 	"errors"
@@ -22,10 +21,10 @@ type FrameRate uint8
 // Device wraps an SPI connection.
 type Device struct {
 	bus             drivers.SPI
-	dcPin           machine.Pin
-	resetPin        machine.Pin
-	csPin           machine.Pin
-	blPin           machine.Pin
+	dcPin           drivers.Pin
+	resetPin        drivers.Pin
+	csPin           drivers.Pin
+	blPin           drivers.Pin
 	width           int16
 	height          int16
 	columnOffsetCfg int16
@@ -51,12 +50,9 @@ type Config struct {
 	Height       int16
 }
 
-// New creates a new ST7789 connection. The SPI wire must already be configured.
-func New(bus drivers.SPI, resetPin, dcPin, csPin, blPin machine.Pin) Device {
-	resetPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
-	dcPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
-	csPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
-	blPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
+// New creates a new ST7789 connection. The SPI wire must already be configured, along with the
+// data/command and reset pins as outputs.
+func New(bus drivers.SPI, resetPin, dcPin, csPin, blPin drivers.Pin) Device {
 	return Device{
 		bus:      bus,
 		resetPin: resetPin,