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irqchip: irq-dove: Add PMU interrupt controller.

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Dove has a Power Management Unit with its own interrupt
controller. This is chained on the main interrupt controller.  Add a
driver, making use of generic chip where possible.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

cc: devicetree@vger.kernel.org
cc: pawel.moll@arm.com
cc: mark.rutland@arm.com
cc: swarren@wwwdotorg.org
cc: ian.campbell@citrix.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Andrew Lunn 2013-11-07 11:35:29 +01:00 • committed by Jason Cooper
parent 6ce4eac1f6
commit 40b367d95f
3 changed files with 144 additions and 0 deletions
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17
Documentation/devicetree/bindings/interrupt-controller/marvell,dove-pmu-intc.txt Normal file
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Marvell Dove Power Management Unit interrupt controller
Required properties:
- compatible: shall be "marvell,dove-pmu-intc"
- reg: base address of PMU interrupt registers starting with CAUSE register
- interrupts: PMU interrupt of the main interrupt controller
- interrupt-controller: identifies the node as an interrupt controller
- #interrupt-cells: number of cells to encode an interrupt source, shall be 1
Example:
pmu_intc: pmu-interrupt-ctrl@d0050 {
compatible = "marvell,dove-pmu-intc";
interrupt-controller;
#interrupt-cells = <1>;
reg = <0xd0050 0x8>;
interrupts = <33>;
};