linux-kernel - [PATCH 2/6] dt-bindings: timer: Add schema for realtek,otto-timer

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Message-ID: <20240621042737.674128-3-chris.packham@alliedtelesis.co.nz>
Date: Fri, 21 Jun 2024 16:27:33 +1200
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: tglx@...utronix.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	tsbogend@...ha.franken.de,
	daniel.lezcano@...aro.org,
	paulburton@...nel.org,
	peterz@...radead.org,
	mail@...ger-koblitz.de,
	bert@...t.com,
	john@...ozen.org,
	sander@...nheule.net
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-mips@...r.kernel.org,
	kabel@...nel.org,
	ericwouds@...il.com,
	Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH 2/6] dt-bindings: timer: Add schema for realtek,otto-timer

Add the devicetree schema for the realtek,otto-timer present on a number
of Realtek SoCs.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
 .../bindings/timer/realtek,otto-timer.yaml    | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml

diff --git a/Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml b/Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml
new file mode 100644
index 000000000000..b6e85aadbc99
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/realtek,otto-timer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek Otto SoCs Timer/Counter
+
+description:
+  Realtek SoCs support a number of timers/counters. These are used
+  as a per CPU clock event generator and an overall CPU clocksource.
+
+maintainers:
+  - Chris Packham <chris.packham@...iedtelesis.co.nz>
+
+properties:
+  $nodename:
+    pattern: "^timer@[0-9a-f]+$"
+
+  compatible:
+    items:
+      - enum:
+          - realtek,rtl930x-timer
+      - const: realtek,otto-timer
+  reg:
+    minItems: 5
+    maxItems: 5
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    minItems: 5
+    maxItems: 5
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    timer0: timer@...0 {
+      compatible = "realtek,rtl930x-timer", "realtek,otto-timer";
+      reg = <0x3200 0x10>, <0x3210 0x10>, <0x3220 0x10>,
+            <0x3230 0x10>, <0x3240 0x10>;
+
+      interrupt-parent = <&intc>;
+      interrupts = <7 4>, <8 4>, <9 4>, <10 4>, <11 4>;
+      clocks = <&lx_clk>;
+    };
-- 
2.45.2