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[karo-tx-linux.git] / Documentation / devicetree / bindings / interrupt-controller / nxp,lpc3220-mic.txt
1 * NXP LPC32xx Main Interrupt Controller
2   (MIC, including SIC1 and SIC2 secondary controllers)
3
4 Required properties:
5 - compatible: Should be "nxp,lpc3220-mic"
6 - interrupt-controller: Identifies the node as an interrupt controller.
7 - interrupt-parent: Empty for the interrupt controller itself
8 - #interrupt-cells: The number of cells to define the interrupts. Should be 2.
9   The first cell is the IRQ number
10   The second cell is used to specify mode:
11       1 = low-to-high edge triggered
12       2 = high-to-low edge triggered
13       4 = active high level-sensitive
14       8 = active low level-sensitive
15       Default for internal sources should be set to 4 (active high).
16 - reg: Should contain MIC registers location and length
17
18 Examples:
19         /*
20          * MIC
21          */
22         mic: interrupt-controller@40008000 {
23                 compatible = "nxp,lpc3220-mic";
24                 interrupt-controller;
25                 interrupt-parent;
26                 #interrupt-cells = <2>;
27                 reg = <0x40008000 0xC000>;
28         };
29
30         /*
31          * ADC
32          */
33         adc@40048000 {
34                 compatible = "nxp,lpc3220-adc";
35                 reg = <0x40048000 0x1000>;
36                 interrupt-parent = <&mic>;
37                 interrupts = <39 4>;
38         };