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 <ldewangan@xxxxxxxxxx> Acked-by: Rob Herring <robh@xxxxxxxxxx> --- .../devicetree/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 0000000..410e716 --- /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 +<devicetree/bindings/gpio/gpio.txt>. + +Example: +-------- +#include <dt-bindings/mfd/max77620.h> +... +max77620@3c { + compatible = "maxim,max77620"; + + gpio-controller; + #gpio-cells = <2>; +}; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html