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

diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
index 98602f1d1e9141f0e1e71101b385da647f522dcf..021cf822395cc5c9960f273d79ae17ca66e1dd5e 100644 (file)
--- a/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
@@ -4,6 +4,7 @@ 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