Kernel-3.10.0-957.el7_lpc32xx-mic

  • NXP LPC32xx Main Interrupt Controller
    (MIC, including SIC1 and SIC2 secondary controllers)

Required properties:

  • compatible: Should be “nxp,lpc3220-mic”
  • interrupt-controller: Identifies the node as an interrupt controller.
  • interrupt-parent: Empty for the interrupt controller itself
  • #interrupt-cells: The number of cells to define the interrupts. Should be 2.
    The first cell is the IRQ number
    The second cell is used to specify mode:
    1 = low-to-high edge triggered
    2 = high-to-low edge triggered
    4 = active high level-sensitive
    8 = active low level-sensitive
    Default for internal sources should be set to 4 (active high).
    
  • reg: Should contain MIC registers location and length

Examples:
/*
* MIC
*/
mic: interrupt-controller@40008000 {
compatible = “nxp,lpc3220-mic”;
interrupt-controller;
interrupt-parent;
#interrupt-cells = <2>;
reg = <0x40008000 0xC000>;
};

/*
 * ADC
 */
adc@40048000 {
    compatible = "nxp,lpc3220-adc";
    reg = <0x40048000 0x1000>;
    interrupt-parent = <&mic>;
    interrupts = <39 4>;
};