From: Georgi Vlaev <gvl...@juniper.net>
Add device tree bindings document for the presence virtual GPIOs
on Juniper's CBC FPGA.
Signed-off-by: Georgi Vlaev <gvl...@juniper.net>
[Ported from Juniper kernel]
Signed-off-by: Pantelis Antoniou <pantelis.anton...@konsulko.com>
---
.../bindings/gpio/jnx,gpio-cbc-presense.txt | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644
Documentation/devicetree/bindings/gpio/jnx,gpio-cbc-presense.txt
diff --git a/Documentation/devicetree/bindings/gpio/jnx,gpio-cbc-presense.txt
b/Documentation/devicetree/bindings/gpio/jnx,gpio-cbc-presense.txt
new file mode 100644
index 0000000..f44e5a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/jnx,gpio-cbc-presense.txt
@@ -0,0 +1,31 @@
+Juniper CBC FPGA GPIO presence block
+
+Required properties:
+
+- compatible:
+ Must be one of "jnx,gpio-cbc-presence", "jnx,gpio-cbc-presence-other",
+ "jnx,gpio-cbc-presence-sib"
+
+Optional properties:
+
+- reg:
+ Address and length of the register set for the device. This is optional
since
+ usually the parent MFD driver fills it in.
+
+- #gpio-cells:
+ Should be <2>. The first cell is the pin number (within the controller's
+ pin space), and the second is used for the following flags:
+ bit[0]: direction (0 = out, 1 = in)
+ bit[1]: init high
+ bit[2]: active low
+
+- gpio-controller:
+ Specifies that the node is a GPIO controller.
+
+Example:
+
+gpio_cbc_presense {
+ compatible = "jnx,gpio-cbc-presense";
+ #gpio-cells = <2>;
+ gpio-controller;
+};
--
1.9.1
