Add bindings documentation for brcm,bcm2835-aux-intc and human-readable
declarations for the BCM2835 AUX IRQs.

Signed-off-by: Phil Elwell <redacted>
---
 .../interrupt-controller/brcm,bcm2835-aux-intc.txt | 28 ++++++++++++++++++++++
 .../interrupt-controller/bcm2835-aux-intc.h        | 20 ++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt
 create mode 100644 include/dt-bindings/interrupt-controller/bcm2835-aux-intc.h

diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt
new file mode 100644
index 0000000..f3f895c
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt

@@ -0,0 +1,28 @@
+BCM2835 Auxiliary ("AUXIRQ") Interrupt Controller
+
+The BCM2835 family of SoCs multiplexes the interrupts for peripherals in
+the AUX block into a single IRQ. The AUXIRQ register shows the IRQ status
+of each of the peripherals. Note that there are no masking or clearing
+facilities - interrupts must be enabled and acknowledged in the
+individual peripherals.
+
+Required properties:
+- compatible :	     Should be "brcm,bcm2835-aux-intc".
+- reg :		     Specifies base physical address and size of the registers.
+- interrupts :	     The interrupt number - see
+		     bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+		     interrupt source. The value shall be 1.
+
+  The cell contains the interrupt specifier, as found in
+  include/dt-bindings/interrupt-controller/bcm2835-aux-intc.h. Valid values
+  are 0..2.