Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / gpio / gpio-stmpe.txt

diff --git a/kernel/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt b/kernel/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
new file mode 100644 (file)
index 0000000..a0e4cf8
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
@@ -0,0 +1,18 @@
+STMPE gpio
+----------
+
+Required properties:
+ - compatible: "st,stmpe-gpio"
+
+Optional properties:
+ - st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable
+   due to different usage (e.g. touch, keypad)
+
+Node name must be stmpe_gpio and should be child node of stmpe node to which it
+belongs.
+
+Example:
+       stmpe_gpio {
+               compatible = "st,stmpe-gpio";
+               st,norequest-mask = <0x20>;     //gpio 5 can't be used
+       };