This patch adds documentation of the device tree bindings for GPIOs
on the devices connected via Moxtet bus.
Signed-off-by: Marek Behún <marek.be...@nic.cz>
Cc: Rob Herring <robh...@kernel.org>
Cc: devicet...@vger.kernel.org
---
.../devicetree/bindings/gpio/gpio-moxtet.txt | 18 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 19 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
b/Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
new file mode 100644
index 000000000000..410759de9f09
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
@@ -0,0 +1,18 @@
+Turris Mox Moxtet GPIO expander via Moxtet bus
+
+Required properties:
+ - compatible : Should be "cznic,moxtet-gpio".
+ - gpio-controller : Marks the device node as a GPIO controller.
+ - #gpio-cells : Should be two. For consumer use see gpio.txt.
+
+Other properties are required for a Moxtet bus device, please refer to
+Documentation/devicetree/bindings/bus/moxtet.txt.
+
+Example:
+
+ moxtet_sfp: gpio@0 {
+ compatible = "cznic,moxtet-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0>;
+ }
diff --git a/MAINTAINERS b/MAINTAINERS
index 6af384154ce5..ccb979f64431 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1505,6 +1505,7 @@ S: Maintained
F: Documentation/ABI/testing/debugfs-moxtet
F: Documentation/ABI/testing/sysfs-bus-moxtet-devices
F: Documentation/devicetree/bindings/bus/moxtet.txt
+F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
F: include/linux/moxtet.h
F: drivers/bus/moxtet.c
F: drivers/gpio/gpio-moxtet.c
--
2.19.2
