dt-bindings: iio: magnetometer: add ti tmag5273 documentation file

Add bindings for TI TMAG5273.
Signed-off-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221201072220.402585-3-gerald.loacker@wolfvision.netSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/magnetometer/ti,tmag5273.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/magnetometer/ti,tmag5273.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TMAG5273 Low-Power Linear 3D Hall-Effect Sensor
+
+maintainers:
+  - Gerald Loacker <gerald.loacker@wolfvision.net>
+
+description:
+  The TI TMAG5273 is a low-power linear 3D Hall-effect sensor. This device
+  integrates three independent Hall-effect sensors in the X, Y, and Z axes.
+  The device has an integrated temperature sensor available. The TMAG5273
+  can be configured through the I2C interface to enable any combination of
+  magnetic axes and temperature measurements. An integrated angle calculation
+  engine (CORDIC) provides full 360° angular position information for both
+  on-axis and off-axis angle measurement topologies. The angle calculation is
+  performed using two user-selected magnetic axes.
+
+properties:
+  compatible:
+    const: ti,tmag5273
+
+  reg:
+    maxItems: 1
+
+  "#io-channel-cells":
+    const: 1
+
+  ti,angle-measurement:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      Enables angle measurement in the selected plane.
+      If not specified, "x-y" will be anables as default.
+    enum:
+      - off
+      - x-y
+      - y-z
+      - x-z
+
+  vcc-supply:
+    description:
+      A regulator providing 1.7 V to 3.6 V supply voltage on the VCC pin,
+      typically 3.3 V.
+
+  interrupts:
+    description:
+      The low active interrupt can be configured to be fixed width or latched.
+      Interrupt events can be configured to be generated from magnetic
+      thresholds or when a conversion is completed.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        magnetometer@35 {
+            compatible = "ti,tmag5273";
+            reg = <0x35>;
+            #io-channel-cells = <1>;
+            ti,angle-measurement = "x-z";
+            vcc-supply = <&vcc3v3>;
+        };
+    };
+...

MAINTAINERS

@@ -20907,6 +20907,12 @@ L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Odd Fixes
 F:	sound/soc/codecs/tas571x*
 
+TI TMAG5273 MAGNETOMETER DRIVER
+M:	Gerald Loacker <gerald.loacker@wolfvision.net>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/iio/magnetometer/ti,tmag5273.yaml
+
 TI TRF7970A NFC DRIVER
 M:	Mark Greer <mgreer@animalcreek.com>
 L:	linux-wireless@vger.kernel.org