summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /Documentation/devicetree/bindings/gpio/gpio-clps711x.txt
Initial import
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/gpio-clps711x.txt')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-clps711x.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt
new file mode 100644
index 000000000..e0d0446a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt
@@ -0,0 +1,28 @@
+Cirrus Logic CLPS711X GPIO controller
+
+Required properties:
+- compatible: Should be "cirrus,clps711x-gpio"
+- reg: Physical base GPIO controller registers location and length.
+ There should be two registers, first is DATA register, the second
+ is DIRECTION.
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Should be two. The first cell is the pin number and
+ the second cell is used to specify the gpio polarity:
+ 0 = active high
+ 1 = active low
+
+Note: Each GPIO port should have an alias correctly numbered in "aliases"
+node.
+
+Example:
+
+aliases {
+ gpio0 = &porta;
+};
+
+porta: gpio@80000000 {
+ compatible = "cirrus,clps711x-gpio";
+ reg = <0x80000000 0x1>, <0x80000040 0x1>;
+ gpio-controller;
+ #gpio-cells = <2>;
+};