dt-bindings: interrupt-controller: ti,omap4-wugen-mpu: Add file extension

Add TXT file extension so the format of binding will be explicit (we
have also bindins in YAML).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250107131111.246969-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
deleted file mode 100644 (file)
index 422d690..0000000
--- a/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
+++ /dev/null
@@ -1,31 +0,0 @@
-TI OMAP4 Wake-up Generator
-
-All TI OMAP4/5 (and their derivatives) an interrupt controller that
-routes interrupts to the GIC, and also serves as a wakeup source. It
-is also referred to as "WUGEN-MPU", hence the name of the binding.
-
-Required properties:
-
-- compatible : should contain at least "ti,omap4-wugen-mpu" or
-  "ti,omap5-wugen-mpu"
-- reg : Specifies base physical address and size of the registers.
-- interrupt-controller : Identifies the node as an interrupt controller.
-- #interrupt-cells : Specifies the number of cells needed to encode an
-  interrupt source. The value must be 3.
-
-Notes:
-
-- Because this HW ultimately routes interrupts to the GIC, the
-  interrupt specifier must be that of the GIC.
-- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs
-  are explicitly forbidden.
-
-Example:
-
-       wakeupgen: interrupt-controller@48281000 {
-               compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
-               interrupt-controller;
-               #interrupt-cells = <3>;
-               reg = <0x48281000 0x1000>;
-               interrupt-parent = <&gic>;
-       };

diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu.txt b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu.txt
new file mode 100644 (file)
index 0000000..422d690
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu.txt
@@ -0,0 +1,31 @@
+TI OMAP4 Wake-up Generator
+
+All TI OMAP4/5 (and their derivatives) an interrupt controller that
+routes interrupts to the GIC, and also serves as a wakeup source. It
+is also referred to as "WUGEN-MPU", hence the name of the binding.
+
+Required properties:
+
+- compatible : should contain at least "ti,omap4-wugen-mpu" or
+  "ti,omap5-wugen-mpu"
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value must be 3.
+
+Notes:
+
+- Because this HW ultimately routes interrupts to the GIC, the
+  interrupt specifier must be that of the GIC.
+- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs
+  are explicitly forbidden.
+
+Example:
+
+       wakeupgen: interrupt-controller@48281000 {
+               compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+               interrupt-controller;
+               #interrupt-cells = <3>;
+               reg = <0x48281000 0x1000>;
+               interrupt-parent = <&gic>;
+       };