Hi Rob,
On Mon, Feb 19, 2018 at 02:35:23PM -0600, Rob Herring wrote:

On Sun, Feb 18, 2018 at 02:14:28AM +0530, Manivannan Sadhasivam wrote:

quoted

Add gpio nodes for Actions Semi S900 SoC.

Signed-off-by: Manivannan Sadhasivam <redacted>
---
 .../devicetree/bindings/gpio/actions,owl-gpio.txt         | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt

diff --git a/Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt b/Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt
new file mode 100644
index 000000000000..4cd4cb7bfd1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/actions,owl-gpio.txt

@@ -0,0 +1,15 @@
+* Actions Semi OWL GPIO controller bindings
+
+- compatible      : Should be "actions,s900-gpio"
+- reg             : Address and range of the GPIO controller registers.
+- gpio-controller : Marks the device node as a GPIO controller.
+- #gpio-cells     : Should be <2>. The first cell is the gpio number and
+                    the second cell is used to specify optional parameters.

Doesn't do interrupts?

Interrupt support will be added once this base driver gets in.
One step at a time ;-)

Thanks,
Mani

quoted

+
+Example:
+       gpio: gpio at e01b0000 {
+               compatible = "actions,s900-gpio";
+               reg = <0x0 0xe01b0000 0x0 0x1000>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
-- 
2.14.1