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1* ARM Cirrus Logic CLPS711X SYSFLG1 MCTRL GPIOs2 3Required properties:4- compatible: Should contain "cirrus,ep7209-mctrl-gpio".5- gpio-controller: Marks the device node as a gpio controller.6- #gpio-cells: Should be two. The first cell is the pin number and7 the second cell is used to specify the gpio polarity:8 0 = Active high,9 1 = Active low.10 11Example:12 sysgpio: sysgpio {13 compatible = "cirrus,ep7312-mctrl-gpio",14 "cirrus,ep7209-mctrl-gpio";15 gpio-controller;16 #gpio-cells = <2>;17 };18