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Diffstat (limited to 'Documentation/devicetree/bindings/x86/interrupt.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/x86/interrupt.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/x86/interrupt.txt b/Documentation/devicetree/bindings/x86/interrupt.txt new file mode 100644 index 00000000000..8b0efb097e6 --- /dev/null +++ b/Documentation/devicetree/bindings/x86/interrupt.txt @@ -0,0 +1,29 @@ +Interrupt chips +--------------- + +* Intel I/O Advanced Programmable Interrupt Controller (IO APIC) + + Required properties: + -------------------- + compatible = "intel,ce4100-ioapic"; + #interrupt-cells = <2>; + + Device's interrupt property: + + interrupts = <P S>; + + The first number (P) represents the interrupt pin which is wired to the + IO APIC. The second number (S) represents the sense of interrupt which + should be configured and can be one of: + 0 - Edge Rising + 1 - Level Low + 2 - Level High + 3 - Edge Falling + +* Local APIC + Required property: + + compatible = "intel,ce4100-lapic"; + + This node is currently unused by Linux as the address of the local APIC + read from a MSR. |