1 Altera GPIO controller bindings
6 - reg: Physical base address and length of the controller's registers.
9 - altr,gpio-bank-width: Width of the GPIO bank. This defines how many pins the
10 GPIO device has. Ranges between 1-32. Optional and defaults to 32 if not
12 - gpio-bank-name: bank name attached to this device.
16 user_led_pio_8out: gpio@0x4cc0 {
17 compatible = "altr,pio-1.0";
18 reg = <0x00004cc0 0x00000010>;
20 altr,gpio-bank-width = <8>;
23 gpio-bank-name = "led";
26 In this example, the gpio can be accessed as led[0..7] using gpio command of