Re: [PATCH 2/3] doc,dts - add XRA1403 DTS binding documentation
From: Rob Herring <robh@kernel.org>
Date: 2017-03-31 18:50:01
Also in:
linux-gpio, lkml
On Mon, Mar 27, 2017 at 09:23:01AM +0300, Nandor Han wrote:
Add the XRA1403 DTS binding documentation.
"dt-bindings: gpio: ..." for the subject prefix please.
quoted hunk ↗ jump to hunk
Signed-off-by: Nandor Han <redacted> --- .../devicetree/bindings/gpio/gpio-xra1403.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-xra1403.txtdiff --git a/Documentation/devicetree/bindings/gpio/gpio-xra1403.txt b/Documentation/devicetree/bindings/gpio/gpio-xra1403.txt new file mode 100644 index 0000000..ccf5337 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-xra1403.txt@@ -0,0 +1,37 @@ +GPIO Driver for XRA1403 16-BIT GPIO Expander With Reset Input from EXAR + +The XRA1403 is an 16-bit GPIO expander with an SPI interface. Features available: + - Individually programmable inputs: + - Internal pull-up resistors + - Polarity inversion + - Individual interrupt enable + - Rising edge and/or Falling edge interrupt + - Input filter + - Individually programmable outputs + - Output Level Control + - Output Three-State Control + +Properties +---------- +Check documentation for SPI and GPIO controllers regarding properties needed to configure the node. + + - compatible = "exar,xra1403". + - reg = SPI id of the device. + - gpio-controller: mark the node as gpio.
#gpio-cells?
+
+Optional properties:
+-------------------
+ - reset-gpios: in case available used to control the device reset line.
+
+Example
+--------
+
+ gpioxra0: gpio@2 {
+ compatible = "exar,xra1403";
+ reg = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
+ spi-max-frequency = <1000000>;
+ status = "okay";Don't show status in examples.
+ }; -- 2.10.1