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irqchip/aspeed-i2c-ic: Add binding docs for Aspeed I2C Interrupt Controller

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Added device tree binding documentation for Aspeed I2C Interrupt
Controller.

Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Brendan Higgins 2017-06-02 18:29:48 -07:00 committed by Marc Zyngier
parent fa776a3f2b
commit 0a56f9eebe
1 changed files with 25 additions and 0 deletions
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Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt Normal file
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Device tree configuration for the I2C Interrupt Controller on the AST24XX and
AST25XX SoCs.
Required Properties:
- #address-cells : should be 1
- #size-cells : should be 1
- #interrupt-cells : should be 1
- compatible : should be "aspeed,ast2400-i2c-ic"
or "aspeed,ast2500-i2c-ic"
- reg : address start and range of controller
- interrupts : interrupt number
- interrupt-controller : denotes that the controller receives and fires
new interrupts for child busses
Example:
i2c_ic: interrupt-controller@0 {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <1>;
compatible = "aspeed,ast2400-i2c-ic";
reg = <0x0 0x40>;
interrupts = <12>;
interrupt-controller;
};