[PATCH 2/2] dt-bindings: arm: omap: Convert IVA to DT schema

[Eduard Bostina <egbostina@gmail.com>]

Convert the Texas Instruments IVA bindings to DT schema.

During the conversion, several updates were made to reflect actual hardware
usage and resolve dtbs_check warnings:
 - Added a dsp sub node that references the new ti,omap3-c64.yaml
schema to support OMAP3 configurations where the DSP is defined as a
child of the IVA node.
 - Updated the compatible property to allow ti,ivahd as a standalone
string.
 - ti,hwmods has been made optional.
 - Added a second example to demonstrate the OMAP3 configuration
with the nested DSP node.

Signed-off-by: Eduard Bostina <egbostina@gmail.com>
---
 .../devicetree/bindings/arm/omap/iva.txt      | 19 -------
 .../devicetree/bindings/arm/omap/ti,iva.yaml  | 51 +++++++++++++++++++
 2 files changed, 51 insertions(+), 19 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/omap/iva.txt
 create mode 100644 Documentation/devicetree/bindings/arm/omap/ti,iva.yaml

diff --git a/Documentation/devicetree/bindings/arm/omap/iva.txt b/Documentation/devicetree/bindings/arm/omap/iva.txt
deleted file mode 100644
index 6d6295171358..000000000000
--- a/Documentation/devicetree/bindings/arm/omap/iva.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-* TI - IVA (Imaging and Video Accelerator) subsystem
-
-The IVA contain various audio, video or imaging HW accelerator
-depending of the version.
-
-Required properties:
-- compatible : Should be:
-  - "ti,ivahd" for OMAP4
-  - "ti,iva2.2" for OMAP3
-  - "ti,iva2.1" for OMAP2430
-  - "ti,iva1" for OMAP2420
-- ti,hwmods: "iva"
-
-Examples:
-
-iva {
-    compatible = "ti,ivahd", "ti,iva";
-    ti,hwmods = "iva";
-};
diff --git a/Documentation/devicetree/bindings/arm/omap/ti,iva.yaml b/Documentation/devicetree/bindings/arm/omap/ti,iva.yaml
new file mode 100644
index 000000000000..771415196235
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/ti,iva.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/omap/ti,iva.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments IVA (Imaging and Video Accelerator)
+
+maintainers:
+  - Eduard Bostina <egbostina@gmail.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: ti,ivahd
+          - const: ti,iva
+      - enum:
+          - ti,iva1
+          - ti,iva2.1
+          - ti,iva2.2
+          - ti,ivahd
+
+  ti,hwmods:
+    description: Name of the hwmod associated to the iva
+    $ref: /schemas/types.yaml#/definitions/string
+    const: iva
+
+  dsp:
+    type: object
+    $ref: /schemas/arm/omap/ti,omap3-c64.yaml#
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    iva {
+        compatible = "ti,iva2.2";
+        ti,hwmods = "iva";
+        dsp {
+            compatible = "ti,omap3-c64";
+        };
+    };
+  - |
+    iva {
+        compatible = "ti,ivahd", "ti,iva";
+        ti,hwmods = "iva";
+    };
-- 
2.43.0