[PATCH v4 1/2] dt-bindings: clock: xilinx: add description of user monitor interrupt

[Harry Austen]

This Xilinx clocking wizard IP core outputs this interrupt signal to
indicate when one of the four optional user clock inputs is either
stopped, overruns, underruns or glitches.

This functionality was only added from version 6.0 onwards, so restrict
it to particular compatible strings.

Signed-off-by: Harry Austen <hpausten at protonmail.com>
---
v3 -> v4: Slight rework and rebase, removing Krzysztof's R-b tag
v2 -> v3: Add Krzysztof's R-b tag
v1 -> v2: Fix binding errors by moving interrupts up front, restrict later

 .../bindings/clock/xlnx,clocking-wizard.yaml  | 24 ++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
index b497c28e8094f..7688601f1f31b 100644
--- a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
+++ b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
@@ -38,6 +38,14 @@ properties:
       - const: clk_in1
       - const: s_axi_aclk
 
+  interrupts:
+    items:
+      - description: user clock monitor interrupt
+
+  interrupt-names:
+    items:
+      - const: monitor
+
   xlnx,static-config:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
@@ -66,12 +74,24 @@ required:
   - xlnx,speed-grade
   - xlnx,nr-outputs
 
+if:
+  properties:
+    compatible:
+      enum:
+        - xlnx,clocking-wizard
+        - xlnx,clocking-wizard-v5.2
+then:
+  properties:
+    interrupts: false
+    interrupt-names: false
+
 additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/interrupt-controller/irq.h>
     clock-controller at b0000000  {
-        compatible = "xlnx,clocking-wizard";
+        compatible = "xlnx,clocking-wizard-v6.0";
         reg = <0xb0000000 0x10000>;
         #clock-cells = <1>;
         xlnx,static-config;
@@ -79,5 +99,7 @@ examples:
         xlnx,nr-outputs = <6>;
         clock-names = "clk_in1", "s_axi_aclk";
         clocks = <&clkc 15>, <&clkc 15>;
+        interrupts-extended = <&intc 52 IRQ_TYPE_EDGE_RISING>;
+        interrupt-names = "monitor";
     };
 ...
-- 
2.53.0