[PATCH v6] dt-bindings: imx-pata: Convert to dtschema

[Animesh Agarwal <animeshagarwal28@gmail.com>]

This patchset converts imx-pata bindings to DT schema.
file name is changed to fsl,imx-pata to follow vendor,device scheme
imx31-pata and imx51-pata are added in compatible to ensure this node compiles to
imx31-pata.dtsi or imx51-pata.dtsi
oneOf is also added to allow the usage of imx27 alone.
Cleanups are done in patch 6

Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>

---
Changes in v6:
- removed items before const due to single element.

Changes in v5:
- added oneOf in compatible property to allow the usage of imx27 alone.

Changes in v4:
- added fsl,imx31-pata in compatible property as enum
- imx31-pata was not listed in compatible in original txt binding
- adding imx31-pata in enum ensures the node compiles to imx31.dtsi

Changes in v3:
- added fsl,imx51-pata in compatible property as enum
- imx51-pata was not listed in compatible in original txt binding
- adding imx51-pata in enum ensures the node compiles to imx31.dtsi
- fsl,imx27-pata is added as a const to ensure it is present always

Changes in v2:
- fixed style issues
- compatible property now matches the examples
- fixed yamllint warnings/errors
---
 .../devicetree/bindings/ata/fsl,imx-pata.yaml | 43 +++++++++++++++++++
 .../devicetree/bindings/ata/imx-pata.txt      | 16 -------
 2 files changed, 43 insertions(+), 16 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
 delete mode 100644 Documentation/devicetree/bindings/ata/imx-pata.txt

diff --git a/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
new file mode 100644
index 000000000000..c108a4b6636a
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/fsl,imx-pata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX PATA Controller
+
+maintainers:
+  - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - fsl,imx31-pata
+              - fsl,imx51-pata
+          - const: fsl,imx27-pata
+      - const: fsl,imx27-pata
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: PATA Controller interrupts
+
+  clocks:
+    items:
+      - description: PATA Controller clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    pata: pata@83fe0000 {
+        compatible = "fsl,imx51-pata","fsl,imx27-pata";
+        reg = <0x83fe0000 0x4000>;
+        interrupts = <70>;
+        clocks = <&clks 161>;
+    };
+
diff --git a/Documentation/devicetree/bindings/ata/imx-pata.txt b/Documentation/devicetree/bindings/ata/imx-pata.txt
deleted file mode 100644
index f1172f00188a..000000000000
--- a/Documentation/devicetree/bindings/ata/imx-pata.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-* Freescale i.MX PATA Controller
-
-Required properties:
-- compatible: "fsl,imx27-pata"
-- reg: Address range of the PATA Controller
-- interrupts: The interrupt of the PATA Controller
-- clocks: the clocks for the PATA Controller
-
-Example:
-
-	pata: pata@83fe0000 {
-		compatible = "fsl,imx51-pata", "fsl,imx27-pata";
-		reg = <0x83fe0000 0x4000>;
-		interrupts = <70>;
-		clocks = <&clks 161>;
-	};
-- 
2.44.0