From e9a0caa3d551351527729c6b13b97b849152fe2c Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Jul 2014 19:14:17 +0200 Subject: irqchip: atmel-aic: Move binding doc to interrupt-controller directory Move atmel aic driver doc to the interrupt-controller directory as the new driver now lays in drivers/irqchip/atmel-aic.c. Signed-off-by: Boris BREZILLON Acked-by: Nicolas Ferre Link: https://lkml.kernel.org/r/1405012462-766-3-git-send-email-boris.brezillon@free-electrons.com Signed-off-by: Jason Cooper --- .../bindings/interrupt-controller/atmel,aic.txt | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt (limited to 'Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt') diff --git a/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt b/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt new file mode 100644 index 000000000000..2742e9cfd6b1 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt @@ -0,0 +1,42 @@ +* Advanced Interrupt Controller (AIC) + +Required properties: +- compatible: Should be "atmel,-aic" + can be "at91rm9200" or "sama5d3" +- interrupt-controller: Identifies the node as an interrupt controller. +- interrupt-parent: For single AIC system, it is an empty property. +- #interrupt-cells: The number of cells to define the interrupts. It should be 3. + The first cell is the IRQ number (aka "Peripheral IDentifier" on datasheet). + The second cell is used to specify flags: + bits[3:0] trigger type and level flags: + 1 = low-to-high edge triggered. + 2 = high-to-low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. + Valid combinations are 1, 2, 3, 4, 8. + Default flag for internal sources should be set to 4 (active high). + The third cell is used to specify the irq priority from 0 (lowest) to 7 + (highest). +- reg: Should contain AIC registers location and length +- atmel,external-irqs: u32 array of external irqs. + +Examples: + /* + * AIC + */ + aic: interrupt-controller@fffff000 { + compatible = "atmel,at91rm9200-aic"; + interrupt-controller; + interrupt-parent; + #interrupt-cells = <3>; + reg = <0xfffff000 0x200>; + }; + + /* + * An interrupt generating device that is wired to an AIC. + */ + dma: dma-controller@ffffec00 { + compatible = "atmel,at91sam9g45-dma"; + reg = <0xffffec00 0x200>; + interrupts = <21 4 5>; + }; -- cgit v1.2.3-59-g8ed1b