zephyr: Update docs to reflect device name changes.

Zephyr v3.2.0 deprecated the devicetree label property as a base
property, which had been used as the device name string for
device_get_binding(). The device name string is now the devicetree node
name appended with its unit-address. Update Zephyr port documentation
to reflect this change.

Signed-off-by: Maureen Helm <maureen.helm@intel.com>

docs/zephyr/quickref.rst

@@ -36,7 +36,10 @@ Use the :ref:`machine.Pin <machine.Pin>` class::
 
     from machine import Pin
 
-    pin = Pin(("GPIO_1", 21), Pin.IN)   # create input pin on GPIO1
+    gpio1 = "gpio@400ff040"             # GPIO1 device name
+    gpio2 = "gpio@400ff080"             # GPIO2 device name
+
+    pin = Pin((gpio1, 21), Pin.IN)      # create input pin on GPIO1
     print(pin)                          # print pin port and number
 
     pin.init(Pin.OUT, Pin.PULL_UP, value=1)     # reinitialize pin
@@ -47,14 +50,14 @@ Use the :ref:`machine.Pin <machine.Pin>` class::
     pin.on()                            # set pin to high
     pin.off()                           # set pin to low
 
-    pin = Pin(("GPIO_1", 21), Pin.IN)   # create input pin on GPIO1
+    pin = Pin((gpio1, 21), Pin.IN)              # create input pin on GPIO1
 
-    pin = Pin(("GPIO_1", 21), Pin.OUT, value=1)         # set pin high on creation
+    pin = Pin((gpio1, 21), Pin.OUT, value=1)    # set pin high on creation
 
-    pin = Pin(("GPIO_1", 21), Pin.IN, Pin.PULL_UP)      # enable internal pull-up resistor
+    pin = Pin((gpio1, 21), Pin.IN, Pin.PULL_UP) # enable internal pull-up resistor
 
-    switch = Pin(("GPIO_2", 6), Pin.IN)                 # create input pin for a switch
-    switch.irq(lambda t: print("SW2 changed"))          # enable an interrupt when switch state is changed
+    switch = Pin((gpio2, 6), Pin.IN)            # create input pin for a switch
+    switch.irq(lambda t: print("SW2 changed"))  # enable an interrupt when switch state is changed
 
 Hardware I2C bus
 ----------------
@@ -63,7 +66,7 @@ Hardware I2C is accessed via the :ref:`machine.I2C <machine.I2C>` class::
 
     from machine import I2C
 
-    i2c = I2C("I2C_0")          # construct an i2c bus
+    i2c = I2C("i2c@40066000")   # construct an i2c bus
     print(i2c)                  # print device name
 
     i2c.scan()                  # scan the device for available I2C slaves
@@ -84,11 +87,11 @@ Hardware SPI is accessed via the :ref:`machine.SPI <machine.SPI>` class::
 
     from machine import SPI
 
-    spi = SPI("SPI_0")          # construct a spi bus with default configuration
+    spi = SPI("spi@4002c000")   # construct a spi bus with default configuration
     spi.init(baudrate=100000, polarity=0, phase=0, bits=8, firstbit=SPI.MSB) # set configuration
 
     # equivalently, construct spi bus and set configuration at the same time
-    spi = SPI("SPI_0", baudrate=100000, polarity=0, phase=0, bits=8, firstbit=SPI.MSB)
+    spi = SPI("spi@4002c000", baudrate=100000, polarity=0, phase=0, bits=8, firstbit=SPI.MSB)
     print(spi)                  # print device name and bus configuration
 
     spi.read(4)                 # read 4 bytes on MISO
@@ -146,7 +149,7 @@ Use the :ref:`zsensor.Sensor <zsensor.Sensor>` class to access sensor data::
     import zsensor
     from zsensor import Sensor
 
-    accel = Sensor("FXOX8700")    # create sensor object for the accelerometer
+    accel = Sensor("fxos8700@1d") # create sensor object for the accelerometer
 
     accel.measure()               # obtain a measurement reading from the accelerometer
 

ports/zephyr/README.md

@@ -102,7 +102,7 @@ To blink an LED:
     import time
     from machine import Pin
 
-    LED = Pin(("GPIO_1", 21), Pin.OUT)
+    LED = Pin(("gpio@400ff040", 21), Pin.OUT)
     while True:
         LED.value(1)
         time.sleep(0.5)
@@ -120,8 +120,8 @@ To respond to Pin change IRQs, on a FRDM-K64F board run:
 
     from machine import Pin
 
-    SW2 = Pin(("GPIO_2", 6), Pin.IN)
-    SW3 = Pin(("GPIO_0", 4), Pin.IN)
+    SW2 = Pin(("gpio@400ff080", 6), Pin.IN)
+    SW3 = Pin(("gpio@400ff000", 4), Pin.IN)
 
     SW2.irq(lambda t: print("SW2 changed"))
     SW3.irq(lambda t: print("SW3 changed"))
@@ -133,14 +133,14 @@ Example of using I2C to scan for I2C slaves:
 
     from machine import I2C
 
-    i2c = I2C("I2C_0")
+    i2c = I2C("i2c@40066000")
     i2c.scan()
 
 Example of using SPI to write a buffer to the MOSI pin:
 
     from machine import SPI
 
-    spi = SPI("SPI_0")
+    spi = SPI("spi@4002c000")
     spi.init(baudrate=500000, polarity=1, phase=1, bits=8, firstbit=SPI.MSB)
     spi.write(b'abcd')