diff mbox series

[v5,armsoc/drivers/bus+gpio,5/5] dt-bindings: gpio: Document GPIOs via Moxtet bus

Message ID 20190428213749.7017-6-marek.behun@nic.cz
State New
Headers show
Series Add Moxtet bus and GPIO over Moxtet bus | expand

Commit Message

Marek Behún April 28, 2019, 9:37 p.m. UTC 
This patch adds documentation of the device tree bindings for GPIOs
on the devices connected via Moxtet bus.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.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 mbox series

Patch

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 c865bf742966..b2df1af4bf9b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1544,6 +1544,7 @@  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