[PATCH] dt-bindings: w1: Convert HDQ One Wire to DT schema

[PATCH] dt-bindings: w1: Convert HDQ One Wire to DT schema

[Eduard Bostina]

Convert the Texas Instruments OMAP HDQ One Wire bindings to DT schema.

During the conversion, several updates were made to reflect actual hardware
usage and resolve dtbs_check warnings:
- 'ti,hwmods' has been made optional.
- Added 'clocks' and 'clock-names' properties as they are used in actual
  device trees (e.g., am437x-l4.dtsi).
- Added a second example for the AM4372 HDQ controller to demonstrate
  the clock and interrupt configuration.

Signed-off-by: Eduard Bostina <egbostina@gmail.com>
---
 .../devicetree/bindings/w1/omap-hdq.txt       | 22 ------
 .../devicetree/bindings/w1/ti,hdq.yaml        | 70 +++++++++++++++++++
 2 files changed, 70 insertions(+), 22 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/w1/omap-hdq.txt
 create mode 100644 Documentation/devicetree/bindings/w1/ti,hdq.yaml

diff --git a/Documentation/devicetree/bindings/w1/omap-hdq.txt b/Documentation/devicetree/bindings/w1/omap-hdq.txt
deleted file mode 100644
index 913c5f91a0f9..000000000000
--- a/Documentation/devicetree/bindings/w1/omap-hdq.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-* OMAP HDQ One wire bus master controller
-
-Required properties:
-- compatible : should be "ti,omap3-1w" or "ti,am4372-hdq"
-- reg : Address and length of the register set for the device
-- interrupts : interrupt line.
-- ti,hwmods : "hdq1w"
-
-Optional properties:
-- ti,mode: should be "hdq": HDQ mode  "1w": one-wire mode.
-	   If not specified HDQ mode is implied.
-
-Example:
-
-- From omap3.dtsi
-  hdqw1w: 1w@480b2000 {
-	compatible = "ti,omap3-1w";
-	reg = <0x480b2000 0x1000>;
-	interrupts = <58>;
-	ti,hwmods = "hdq1w";
-	ti,mode = "hdq";
-  };
diff --git a/Documentation/devicetree/bindings/w1/ti,hdq.yaml b/Documentation/devicetree/bindings/w1/ti,hdq.yaml
new file mode 100644
index 000000000000..aa539c7bb5f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/w1/ti,hdq.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/w1/ti,hdq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments OMAP HDQ One Wire Bus Master Controller
+
+maintainers:
+  - Eduard Bostina <egbostina@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - ti,omap3-1w
+      - ti,am4372-hdq
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: fck
+
+  ti,hwmods:
+    description: Name of the hwmod associated to the hdq
+    $ref: /schemas/types.yaml#/definitions/string
+    const: hdq1w
+
+  ti,mode:
+    description: |
+      Operation mode. "hdq" for HDQ mode, "1w" for One-Wire mode.
+      If not specified, HDQ mode is implied.
+    $ref: /schemas/types.yaml#/definitions/string
+    enum:
+      - hdq
+      - 1w
+    default: hdq
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    hdq@0 {
+        compatible = "ti,am4372-hdq";
+        reg = <0x0 0x1000>;
+        interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&func_12m_clk>;
+        clock-names = "fck";
+    };
+  - |
+    w1@480b2000 {
+        compatible = "ti,omap3-1w";
+        reg = <0x480b2000 0x1000>;
+        interrupts = <58>;
+        ti,hwmods = "hdq1w";
+        ti,mode = "hdq";
+    };
-- 
2.43.0

Re: [PATCH] dt-bindings: w1: Convert HDQ One Wire to DT schema

[Krzysztof Kozlowski]

On Tue, Jun 30, 2026 at 12:48:25PM +0000, Eduard Bostina wrote:
> Convert the Texas Instruments OMAP HDQ One Wire bindings to DT schema.
> 
> During the conversion, several updates were made to reflect actual hardware
> usage and resolve dtbs_check warnings:
> - 'ti,hwmods' has been made optional.
> - Added 'clocks' and 'clock-names' properties as they are used in actual
>   device trees (e.g., am437x-l4.dtsi).
> - Added a second example for the AM4372 HDQ controller to demonstrate
>   the clock and interrupt configuration.
> 
> Signed-off-by: Eduard Bostina <egbostina@gmail.com>

Wearing DT hat:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof