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Message-ID: <20250506022245.2587662-1-robh@kernel.org>
Date: Mon, 5 May 2025 21:22:43 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Daniel Lezcano <daniel.lezcano@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH] dt-bindings: timer: Convert fsl,gtm to DT schema
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@...nel.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@...nel.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
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