From 8c9e465b488b2b8b83b321045f4c07adbd69d2e2 Mon Sep 17 00:00:00 2001 From: Marek Behún Date: Mon, 12 Aug 2019 18:11:18 +0200 Subject: dt-bindings: gpio: Document GPIOs via Moxtet bus MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds documentation of the device tree bindings for GPIOs on the devices connected via Moxtet bus. Link: https://lore.kernel.org/r/20190812161118.21476-6-marek.behun@nic.cz Signed-off-by: Marek Behún Reviewed-by: Rob Herring Reviewed-by: Linus Walleij Signed-off-by: Arnd Bergmann --- Documentation/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 a71ab252ad7e..0872e4cb98ef 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1633,6 +1633,7 @@ 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 -- cgit v1.2.3