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AM335X NMIn 做中断该怎么设置

user4796556
Expert 1352 points


hi:

am335x中，gpio作为中断，dts文件中如下设置

interrupt-parent = <&gpio3>;
interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;

我们板子上把nNMI(B18)作为hdmi的中断，请问在dts文件中该如何设置？

  • 0
    TI__Genius 9922 points

    其实nNmi 中断和其他gpio类似 ，它的中断号是7，参考

    https://e2e.ti.com/support/embedded/linux/f/354/t/445892?tisearch=e2e-sitesearch&keymatch=nNMI interrupts

    https://e2e.ti.com/support/arm/sitara_arm/f/791/t/445241?tisearch=e2e-sitesearch&keymatch=nNMI interrupts