dt-bindings: hwmon: Add Axiado AX3000 TSADC

Add a Devicetree binding for the temperature sensor ADC (TSADC)
controller found on the Axiado AX3000 and AX3005 SoCs.

The controller monitors the on-die temperature. An SoC may contain
multiple TSADC controllers at different locations on the die, each
represented by a separate Devicetree node.

AX3005 uses the same programming model as AX3000 and is compatible
with the AX3000 implementation. Therefore, axiado,ax3000-tsadc is
used as its fallback compatible.

Also add a MAINTAINERS entry covering the binding and driver.

Signed-off-by: Petar Stepanovic <pstepanovic@axiado.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260903-axiado-ax3000-tsadc-v1-1-a8a0f3b251f5@axiado.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/hwmon/axiado,ax3000-tsadc.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/axiado,ax3000-tsadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axiado AX3000 and AX3005 TSADC
+
+maintainers:
+  - Petar Stepanovic <pstepanovic@axiado.com>
+  - Akhila Kavi <akavi@axiado.com>
+  - Prasad Bolisetty <pbolisetty@axiado.com>
+
+description: |
+  The Axiado AX3000 and AX3005 Temperature Sensor ADC (TSADC) controllers
+  monitor the on-die temperature of the SoC.
+
+properties:
+  compatible:
+    oneOf:
+      - const: axiado,ax3000-tsadc
+      - items:
+          - const: axiado,ax3005-tsadc
+          - const: axiado,ax3000-tsadc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    temperature-sensor@33021000 {
+        compatible = "axiado,ax3000-tsadc";
+        reg = <0x33021000 0x100>;
+        clocks = <&refclk>;
+    };

MAINTAINERS

@@ -4508,6 +4508,14 @@ F:	Documentation/devicetree/bindings/spi/axiado,ax3000-spi.yaml
 F:	drivers/spi/spi-axiado.c
 F:	drivers/spi/spi-axiado.h
 
+AXIADO TSADC DRIVER
+M:	Petar Stepanovic <pstepanovic@axiado.com>
+M:	Akhila Kavi <akavi@axiado.com>
+M:	Prasad Bolisetty <pbolisetty@axiado.com>
+L:	linux-hwmon@vger.kernel.org
+S:	Supported
+F:	Documentation/devicetree/bindings/hwmon/axiado,ax3000-tsadc.yaml
+
 AYANEO PLATFORM EC DRIVER
 M:	Antheas Kapenekakis <lkml@antheas.dev>
 L:	platform-driver-x86@vger.kernel.org