diff options
| author | Rabin Vincent <rabin@rab.in> | 2015-06-06 22:30:40 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-06-10 09:11:10 +0200 |
| commit | d342571efea8135dcf0a96dcb9e54759adefdb27 (patch) | |
| tree | a20b5523892622f19ad3c27b6089b413dabc8d6f /Documentation | |
| parent | e2bfba418598951733aff5822ca617efdbc06715 (diff) | |
gpio: add ETRAXFS GPIO driver
Add a GPIO driver for the General I/O block on Axis ETRAX FS SoCs.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt b/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt new file mode 100644 index 000000000000..abf4db736c6e --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt @@ -0,0 +1,21 @@ +Axis ETRAX FS General I/O controller bindings + +Required properties: + +- compatible: + - "axis,etraxfs-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>; + }; |