From f72677939cf582118bd645c5015605577db74b25 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Fri, 13 May 2016 10:49:12 +0530 Subject: [PATCH] gpio: add DT binding doc for gpio of PMIC max77620/max20024 Maxim Semiconductor's PMIC MAX77620/MAX20024 has 8 GPIO pins which act as GPIO as well as special function mode. Add DT binding document to support these pins in GPIO mode via GPIO framework. Signed-off-by: Laxman Dewangan Acked-by: Rob Herring Signed-off-by: Linus Walleij --- .../bindings/gpio/gpio-max77620.txt | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-max77620.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-max77620.txt b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt new file mode 100644 index 000000000000..410e716fd3d2 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt @@ -0,0 +1,25 @@ +GPIO driver for MAX77620 Power management IC from Maxim Semiconductor. + +Device has 8 GPIO pins which can be configured as GPIO as well as the +special IO functions. + +Required properties: +------------------- +- gpio-controller : Marks the device node as a gpio controller. +- #gpio-cells : Should be two. The first cell is the pin number and + the second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low +For more details, please refer generic GPIO DT binding document +. + +Example: +-------- +#include +... +max77620@3c { + compatible = "maxim,max77620"; + + gpio-controller; + #gpio-cells = <2>; +}; -- 2.34.1