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From:   Corentin Labbe <clabbe@baylibre.com>
To:     daniel.lezcano@linaro.org, robh+dt@kernel.org, tglx@linutronix.de
Cc:     devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH v2] dt-bindings: timer: Convert faraday,fttmr010 to yaml
Date:   Wed, 26 Jan 2022 16:00:21 +0000
Message-Id: <20220126160021.3537591-1-clabbe@baylibre.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Converts timer/faraday,fttmr010.txt to yaml.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
Changes since v1:
- added moxart example
- relaxed some contraints as driver only support one clock and one
  interrupt (as used by moxa,moxart-timer)

 .../bindings/timer/faraday,fttmr010.txt       | 38 --------
 .../bindings/timer/faraday,fttmr010.yaml      | 88 +++++++++++++++++++
 2 files changed, 88 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..db9fb171ea49
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/faraday,fttmr010.yaml
@@ -0,0 +1,88 @@
+# 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 Technology timer
+
+maintainers:
+  - 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:
+      - const: faraday,fttmr010
+      - items:
+          - const: cortina,gemini-timer
+          - const: faraday,fttmr010
+      - items:
+          - const: moxa,moxart-timer
+          - const: faraday,fttmr010
+      - const: aspeed,ast2400-timer
+      - const: aspeed,ast2500-timer
+      - const: aspeed,ast2600-timer
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    maxItems: 3
+    description: Should contain the three timer interrupts usually with flags for falling edge
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: "PCLK"
+      - const: "EXTCLK"
+
+  syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    /* taken from arch/arm/boot/dts/gemini.dtsi */
+    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 = "PCLK", "EXTCLK";
+      syscon = <&syscon>;
+    };
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    /* taken from arch/arm/boot/dts/moxart.dtsi */
+    timer: timer@98400000 {
+      compatible = "moxa,moxart-timer", "faraday,fttmr010";
+      reg = <0x98400000 0x42>;
+      interrupts = <19 IRQ_TYPE_EDGE_FALLING>;
+      clocks = <&clk_apb>;
+      clock-names = "PCLK";
+    };
+...
-- 
2.34.1