From: "Rob Herring (Arm)" <robh@kernel.org>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Joel Stanley <joel@jms.id.au>,
Linus Walleij <linus.walleij@linaro.org>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH] dt-bindings: timer: Convert faraday,fttmr010 to DT schema
Date: Mon, 5 May 2025 21:22:40 -0500 [thread overview]
Message-ID: <20250506022241.2587534-1-robh@kernel.org> (raw)
Convert the Faraday fttmr010 Timer binding to DT schema format. Adjust
the compatible string values to match what's in use. The number of
interrupts can also be anywhere from 1 to 8. The clock-names order was
reversed compared to what's used.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
.../bindings/timer/faraday,fttmr010.txt | 38 --------
.../bindings/timer/faraday,fttmr010.yaml | 89 +++++++++++++++++++
2 files changed, 89 insertions(+), 38 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/timer/faraday,fttmr010.txt
create mode 100644 Documentation/devicetree/bindings/timer/faraday,fttmr010.yaml
diff --git a/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt b/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt
deleted file mode 100644
index 3cb2f4c98d64..000000000000
--- a/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-Faraday Technology timer
-
-This timer is a generic IP block from Faraday Technology, embedded in the
-Cortina Systems Gemini SoCs and other designs.
-
-Required properties:
-
-- compatible : Must be one of
- "faraday,fttmr010"
- "cortina,gemini-timer", "faraday,fttmr010"
- "moxa,moxart-timer", "faraday,fttmr010"
- "aspeed,ast2400-timer"
- "aspeed,ast2500-timer"
- "aspeed,ast2600-timer"
-
-- reg : Should contain registers location and length
-- interrupts : Should contain the three timer interrupts usually with
- flags for falling edge
-
-Optionally required properties:
-
-- clocks : a clock to provide the tick rate for "faraday,fttmr010"
-- clock-names : should be "EXTCLK" and "PCLK" for the external tick timer
- and peripheral clock respectively, for "faraday,fttmr010"
-- syscon : a phandle to the global Gemini system controller if the compatible
- type is "cortina,gemini-timer"
-
-Example:
-
-timer@43000000 {
- compatible = "faraday,fttmr010";
- reg = <0x43000000 0x1000>;
- interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */
- <15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */
- <16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */
- clocks = <&extclk>, <&pclk>;
- clock-names = "EXTCLK", "PCLK";
-};
diff --git a/Documentation/devicetree/bindings/timer/faraday,fttmr010.yaml b/Documentation/devicetree/bindings/timer/faraday,fttmr010.yaml
new file mode 100644
index 000000000000..6f67ec0505bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/faraday,fttmr010.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/faraday,fttmr010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Faraday FTTMR010 timer
+
+maintainers:
+ - Joel Stanley <joel@jms.id.au>
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description:
+ This timer is a generic IP block from Faraday Technology, embedded in the
+ Cortina Systems Gemini SoCs and other designs.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: moxa,moxart-timer
+ - const: faraday,fttmr010
+ - enum:
+ - aspeed,ast2400-timer
+ - aspeed,ast2500-timer
+ - aspeed,ast2600-timer
+ - cortina,gemini-timer
+ - faraday,fttmr010
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 8
+ description: One interrupt per timer
+
+ clocks:
+ minItems: 1
+ items:
+ - description: Peripheral clock
+ - description: External tick clock
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: PCLK
+ - const: EXTCLK
+
+ resets:
+ maxItems: 1
+
+ syscon:
+ description: System controller phandle for Gemini systems
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: cortina,gemini-timer
+ then:
+ required:
+ - syscon
+ else:
+ properties:
+ syscon: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ timer@43000000 {
+ compatible = "faraday,fttmr010";
+ reg = <0x43000000 0x1000>;
+ interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */
+ <15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */
+ <16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */
+ clocks = <&extclk>, <&pclk>;
+ clock-names = "EXTCLK", "PCLK";
+ };
--
2.47.2
next reply other threads:[~2025-05-06 2:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-06 2:22 Rob Herring (Arm) [this message]
2025-05-06 7:53 ` Linus Walleij
2025-05-06 8:36 ` Rob Herring (Arm)
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