diff options
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt b/kernel/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt new file mode 100644 index 000000000..170194af3 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt @@ -0,0 +1,22 @@ +Axis ETRAX FS General I/O controller bindings + +Required properties: + +- compatible: one of: + - "axis,etraxfs-gio" + - "axis,artpec3-gio" +- reg: Physical base address and length of the controller's registers. +- #gpio-cells: Should be 3 + - The first cell is the gpio offset number. + - The second cell is reserved and is currently unused. + - The third cell is the port number (hex). +- gpio-controller: Marks the device node as a GPIO controller. + +Example: + + gio: gpio@b001a000 { + compatible = "axis,etraxfs-gio"; + reg = <0xb001a000 0x1000>; + gpio-controller; + #gpio-cells = <3>; + }; |