[PATCH] dt-bindings: timer: Convert fsl,gtm to DT schema

["Rob Herring (Arm)" <robh@kernel.org>]

Convert the Freescale General Purpose Timer binding to DT schema format.
Add the specific compatibles in use. Drop the "fsl,cpm2-gtm" compatible
which is not used. The examples are all similar, so just leave 1
example.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../devicetree/bindings/timer/fsl,gtm.txt     | 30 ----------
 .../devicetree/bindings/timer/fsl,gtm.yaml    | 55 +++++++++++++++++++
 2 files changed, 55 insertions(+), 30 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/timer/fsl,gtm.txt
 create mode 100644 Documentation/devicetree/bindings/timer/fsl,gtm.yaml

diff --git a/Documentation/devicetree/bindings/timer/fsl,gtm.txt b/Documentation/devicetree/bindings/timer/fsl,gtm.txt
deleted file mode 100644
index fc1c571f7412..000000000000
--- a/Documentation/devicetree/bindings/timer/fsl,gtm.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-* Freescale General-purpose Timers Module
-
-Required properties:
-  - compatible : should be
-    "fsl,<chip>-gtm", "fsl,gtm" for SOC GTMs
-    "fsl,<chip>-qe-gtm", "fsl,qe-gtm", "fsl,gtm" for QE GTMs
-    "fsl,<chip>-cpm2-gtm", "fsl,cpm2-gtm", "fsl,gtm" for CPM2 GTMs
-  - reg : should contain gtm registers location and length (0x40).
-  - interrupts : should contain four interrupts.
-  - clock-frequency : specifies the frequency driving the timer.
-
-Example:
-
-timer@500 {
-	compatible = "fsl,mpc8360-gtm", "fsl,gtm";
-	reg = <0x500 0x40>;
-	interrupts = <90 8 78 8 84 8 72 8>;
-	interrupt-parent = <&ipic>;
-	/* filled by u-boot */
-	clock-frequency = <0>;
-};
-
-timer@440 {
-	compatible = "fsl,mpc8360-qe-gtm", "fsl,qe-gtm", "fsl,gtm";
-	reg = <0x440 0x40>;
-	interrupts = <12 13 14 15>;
-	interrupt-parent = <&qeic>;
-	/* filled by u-boot */
-	clock-frequency = <0>;
-};
diff --git a/Documentation/devicetree/bindings/timer/fsl,gtm.yaml b/Documentation/devicetree/bindings/timer/fsl,gtm.yaml
new file mode 100644
index 000000000000..31d8534ac868
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/fsl,gtm.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/fsl,gtm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale General-purpose Timers Module
+
+maintainers:
+  - Rob Herring <robh@kernel.org>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - fsl,mpc8308-gtm
+              - fsl,mpc8313-gtm
+              - fsl,mpc8315-gtm
+          - const: fsl,gtm
+      - items:
+          - enum:
+              - fsl,mpc8569-qe-gtm
+              - fsl,mpc8360-qe-gtm
+          - const: fsl,qe-gtm
+          - const: fsl,gtm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 4
+    description:
+      One interrupt for each timer
+
+  clock-frequency:
+    description: Specifies the frequency driving the timer.
+    default: 0
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clock-frequency
+
+additionalProperties: false
+
+examples:
+  - |
+    timer@440 {
+        compatible = "fsl,mpc8360-qe-gtm", "fsl,qe-gtm", "fsl,gtm";
+        reg = <0x440 0x40>;
+        interrupts = <12>, <13>, <14>, <15>;
+        clock-frequency = <0>;
+    };
-- 
2.47.2