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GPIO as interrupt

Question asked by chandra sekhar on Jul 21, 2016
Latest reply on Jul 21, 2016 by igorpadykov

to make gpio as a interrupt what is the exact device tree notation I have to use.

I am using imx6ulevk board and i want to make GPIO3 22 pin as Interrupt.

these two lines are enough ??

interrupt-parent = <&gpio3>;

interrupts = <22 8>;

where to add these lines in dts file??


and one more doubt what is thee difference between  interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH> this line is mentioned in dtsi file  and interrupt-parent = <&gpio5>; interrupts = <0 8> these lines are mentioned in dts file.