ARM: at91: add of irq priorities support

[firefly-linux-kernel-4.4.55.git] / Documentation / devicetree / bindings / arm / atmel-aic.txt

diff --git a/Documentation/devicetree/bindings/arm/atmel-aic.txt b/Documentation/devicetree/bindings/arm/atmel-aic.txt
index aabca4f83402198c50893724a2d3dbcfb3d221d4..19078bf5cca82b22e5aba7882d592242d924fd48 100644 (file)
--- a/Documentation/devicetree/bindings/arm/atmel-aic.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-aic.txt
@@ -4,7 +4,7 @@ Required properties:
 - compatible: Should be "atmel,<chip>-aic"
 - 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 sould be 2.
+- #interrupt-cells: The number of cells to define the interrupts. It sould 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:
@@ -14,7 +14,10 @@ Required properties:
       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:
        /*
@@ -24,7 +27,7 @@ Examples:
                compatible = "atmel,at91rm9200-aic";
                interrupt-controller;
                interrupt-parent;
-               #interrupt-cells = <2>;
+               #interrupt-cells = <3>;
                reg = <0xfffff000 0x200>;
        };
 
@@ -34,5 +37,5 @@ Examples:
        dma: dma-controller@ffffec00 {
                compatible = "atmel,at91sam9g45-dma";
                reg = <0xffffec00 0x200>;
-               interrupts = <21 4>;
+               interrupts = <21 4 5>;
        };