linux-kernel - [PATCH 1/1] dt-bindings: timer: Add fsl,vf610-pit.yaml

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Message-Id: <20250522205710.502779-1-Frank.Li@nxp.com>
Date: Thu, 22 May 2025 16:57:09 -0400
From: Frank Li <Frank.Li@....com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-kernel@...r.kernel.org (open list:CLOCKSOURCE, CLOCKEVENT DRIVERS),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/1] dt-bindings: timer: Add fsl,vf610-pit.yaml

Add binding doc fsl,vf610-pit.yaml to fix below CHECK_DTB warnings:

arch/arm/boot/dts/nxp/vf/vf610m4-colibri.dtb:
  /soc/bus@...00000/pit@...37000: failed to match any schema with compatible: ['fsl,vf610-pit']

Signed-off-by: Frank Li <Frank.Li@....com>
---
 .../bindings/timer/fsl,vf610-pit.yaml         | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/fsl,vf610-pit.yaml

diff --git a/Documentation/devicetree/bindings/timer/fsl,vf610-pit.yaml b/Documentation/devicetree/bindings/timer/fsl,vf610-pit.yaml
new file mode 100644
index 0000000000000..bee2c35bd0e29
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/fsl,vf610-pit.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/fsl,vf610-pit.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Periodic Interrupt Timer (PIT)
+
+maintainers:
+  - Frank Li <Frank.Li@....com>
+
+description:
+  The PIT module is an array of timers that can be used to raise interrupts
+  and trigger DMA channels.
+
+properties:
+  compatible:
+    enum:
+      - fsl,vf610-pit
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: pit
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/vf610-clock.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    timer@...37000 {
+        compatible = "fsl,vf610-pit";
+        reg = <0x40037000 0x1000>;
+        interrupts = <39 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clks VF610_CLK_PIT>;
+        clock-names = "pit";
+    };
-- 
2.34.1