ARCv2: IDU-intc: Delete deprecated parameters in Device Trees

No need for specifying a list of interrupts in the declaration
of IDU interrupt controller anymore since the kernel can obtain
a number of supported interrupts from the build register.

Also delete support of the second parameter for devices which
are connected to IDU because it is not used anywhere.

Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

1 files changed, 6 insertions, 18 deletions

diff --git a/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
index 944657684d73..8b46a34e05f1 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
@@ -8,15 +8,11 @@ Properties:
 - compatible: "snps,archs-idu-intc"
 - interrupt-controller: This is an interrupt controller.
 - interrupt-parent: <reference to parent core intc>
-- #interrupt-cells: Must be <2>.
-- interrupts: <...> specifies the upstream core irqs
+- #interrupt-cells: Must be <1>.
 
-  First cell specifies the "common" IRQ from peripheral to IDU
-  Second cell specifies the irq distribution mode to cores
-     0=Round Robin; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
-
-  The second cell in interrupts property is deprecated and may be ignored by
-  the kernel.
+  Value of the cell specifies the "common" IRQ from peripheral to IDU. Number N
+  of the particular interrupt line of IDU corresponds to the line N+24 of the
+  core interrupt controller.
 
   intc accessed via the special ARC AUX register interface, hence "reg" property
   is not specified.
@@ -32,18 +28,10 @@ Example:
                 compatible = "snps,archs-idu-intc";
                 interrupt-controller;
                 interrupt-parent = <&core_intc>;
-
-                /*
-                 * <hwirq  distribution>
-                 * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
-                 */
-                #interrupt-cells = <2>;
-
-                /* upstream core irqs: downstream these are "COMMON" irq 0,1..  */
-                interrupts = <24 25 26 27 28 29 30 31>;
+                #interrupt-cells = <1>;
         };
 
         some_device: serial@c0fc1000 {
                 interrupt-parent = <&idu_intc>;
-                interrupts = <0 0>;     /* upstream idu IRQ #24, Round Robin */
+                interrupts = <0>;       /* upstream idu IRQ #24 */
         };