linux-stable/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
Florian Fainelli 03a7ac47c1 dt-bindings: interrupt-controller: Document UPG auxiliary L2
Define the compatible string brcm,upg-aux-aon-l2-intc which is used by
the Broadcom STB UPG auxiliary always-on interrupt controller.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200709223016.989-6-f.fainelli@gmail.com
2020-07-17 13:41:42 +01:00

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Text

Broadcom Generic Level 2 Interrupt Controller
Required properties:
- compatible: should be one of:
"brcm,hif-spi-l2-intc" or
"brcm,upg-aux-aon-l2-intc" or
"brcm,l2-intc" for latched interrupt controllers
should be "brcm,bcm7271-l2-intc" for level interrupt controllers
- reg: specifies the base physical address and size of the registers
- interrupt-controller: identifies the node as an interrupt controller
- #interrupt-cells: specifies the number of cells needed to encode an
interrupt source. Should be 1.
- interrupts: specifies the interrupt line in the interrupt-parent irq space
to be used for cascading
Optional properties:
- brcm,irq-can-wake: If present, this means the L2 controller can be used as a
wakeup source for system suspend/resume.
Example:
hif_intr2_intc: interrupt-controller@f0441000 {
compatible = "brcm,l2-intc";
reg = <0xf0441000 0x30>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&intc>;
interrupts = <0x0 0x20 0x0>;
};