linux-kernel - [PATCH v2] dt-bindings: clock: adi,axi-clkgen: convert old binding to yaml format

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Date:   Tue, 13 Oct 2020 17:34:20 +0300
From:   Alexandru Ardelean <alexandru.ardelean@...log.com>
To:     <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <michael.hennerich@...log.com>, <lars@...afoo.de>,
        <mdf@...nel.org>, <sboyd@...nel.org>, <robh+dt@...nel.org>,
        <mturquette@...libre.com>,
        Alexandru Ardelean <alexandru.ardelean@...log.com>
Subject: [PATCH v2] dt-bindings: clock: adi,axi-clkgen: convert old binding to yaml format

This change converts the old binding for the AXI clkgen driver to a yaml
format.

As maintainers, added:
 - Lars-Peter Clausen <lars@...afoo.de> - as original author of driver &
   binding
 - Michael Hennerich <michael.hennerich@...log.com> - as supporter of
   Analog Devices drivers

Acked-by: Michael Hennerich <michael.hennerich@...log.com>
Acked-by: Lars-Peter Clausen <lars@...afoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
---

Changelog v1 -> v2:
* add 'additionalProperties: false'
* changed 'clock@...' -> 'clock-controller@...' in example
* added Acked-by for Michael & Lars on the re-licensing
* updated description for 'clocks' property

 .../bindings/clock/adi,axi-clkgen.yaml        | 53 +++++++++++++++++++
 .../devicetree/bindings/clock/axi-clkgen.txt  | 25 ---------
 2 files changed, 53 insertions(+), 25 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
 delete mode 100644 Documentation/devicetree/bindings/clock/axi-clkgen.txt

diff --git a/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
new file mode 100644
index 000000000000..0d06387184d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/adi,axi-clkgen.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/adi,axi-clkgen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for Analog Devices AXI clkgen pcore clock generator
+
+maintainers:
+  - Lars-Peter Clausen <lars@...afoo.de>
+  - Michael Hennerich <michael.hennerich@...log.com>
+
+description: |
+  The axi_clkgen IP core is a software programmable clock generator,
+  that can be synthesized on various FPGA platforms.
+
+  Link: https://wiki.analog.com/resources/fpga/docs/axi_clkgen
+
+properties:
+  compatible:
+    enum:
+      - adi,axi-clkgen-2.00.a
+
+  clocks:
+    description:
+      Specifies the reference clock(s) from which the output frequency is
+      derived. This must either reference one clock if only the first clock
+      input is connected or two if both clock inputs are connected.
+    minItems: 1
+    maxItems: 2
+
+  '#clock-cells':
+    const: 0
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@...00000 {
+      compatible = "adi,axi-clkgen-2.00.a";
+      #clock-cells = <0>;
+      reg = <0xff000000 0x1000>;
+      clocks = <&osc 1>;
+    };
diff --git a/Documentation/devicetree/bindings/clock/axi-clkgen.txt b/Documentation/devicetree/bindings/clock/axi-clkgen.txt
deleted file mode 100644
index aca94fe9416f..000000000000
--- a/Documentation/devicetree/bindings/clock/axi-clkgen.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Binding for the axi-clkgen clock generator
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be "adi,axi-clkgen-1.00.a" or "adi,axi-clkgen-2.00.a".
-- #clock-cells : from common clock binding; Should always be set to 0.
-- reg : Address and length of the axi-clkgen register set.
-- clocks : Phandle and clock specifier for the parent clock(s). This must
-	either reference one clock if only the first clock input is connected or two
-	if both clock inputs are connected. For the later case the clock connected
-	to the first input must be specified first.
-
-Optional properties:
-- clock-output-names : From common clock binding.
-
-Example:
-	clock@...00000 {
-		compatible = "adi,axi-clkgen";
-		#clock-cells = <0>;
-		reg = <0xff000000 0x1000>;
-		clocks = <&osc 1>;
-	};
-- 
2.17.1