Convert the Texas Instruments OMAP Counter-32K bindings to DT schema.
During the conversion, two updates were made to reflect actual hardware
usage and resolve dtbs_check warnings:
- 'ti,hwmods' has been made optional. While a search confirms it is no
longer used, it is kept to maintain backwards compatibility.
- Added the 'ti,am4372-counter32k' compatible string. This is used
alongside the generic 'ti,omap-counter32k' fallback in AM437x device
trees and is retained for backward compatibility with other software
stacks that may rely on it.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Eduard Bostina <egbostina@gmail.com>
---
Changes in v2:
- Removed the unused 'counter32k:' label from the example.
- Clarified in the commit message that 'ti,am4372-counter32k' is used
alongside the generic fallback.
.../devicetree/bindings/arm/omap/counter.txt | 15 -------
.../bindings/arm/omap/ti,omap-counter32k.yaml | 41 +++++++++++++++++++
2 files changed, 41 insertions(+), 15 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/arm/omap/counter.txt
create mode 100644 Documentation/devicetree/bindings/arm/omap/ti,omap-counter32k.yaml
diff --git a/Documentation/devicetree/bindings/arm/omap/counter.txt b/Documentation/devicetree/bindings/arm/omap/counter.txt
deleted file mode 100644
index 5bd8aa091..000000000
--- a/Documentation/devicetree/bindings/arm/omap/counter.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-OMAP Counter-32K bindings
-
-Required properties:
-- compatible: Must be "ti,omap-counter32k" for OMAP controllers
-- reg: Contains timer register address range (base address and length)
-- ti,hwmods: Name of the hwmod associated to the counter, which is typically
- "counter_32k"
-
-Example:
-
-counter32k: counter@4a304000 {
- compatible = "ti,omap-counter32k";
- reg = <0x4a304000 0x20>;
- ti,hwmods = "counter_32k";
-};
diff --git a/Documentation/devicetree/bindings/arm/omap/ti,omap-counter32k.yaml b/Documentation/devicetree/bindings/arm/omap/ti,omap-counter32k.yaml
new file mode 100644
index 000000000..ef2730c34
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/ti,omap-counter32k.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/omap/ti,omap-counter32k.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments OMAP Counter-32K
+
+maintainers:
+ - Eduard Bostina <egbostina@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: ti,omap-counter32k
+ - items:
+ - const: ti,am4372-counter32k
+ - const: ti,omap-counter32k
+
+ reg:
+ maxItems: 1
+
+ ti,hwmods:
+ description: Name of the hwmod associated to the counter
+ $ref: /schemas/types.yaml#/definitions/string-array
+ items:
+ - const: counter_32k
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ counter@4a304000 {
+ compatible = "ti,omap-counter32k";
+ reg = <0x4a304000 0x20>;
+ ti,hwmods = "counter_32k";
+ };
--
2.54.0