dt-bindings: fxas21002c: convert bindings to yaml

Convert fxas21002c gyroscope sensor bindings documentation to
yaml schema, remove the textual bindings document and update MAINTAINERS entry.
Signed-off-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201014104926.688666-1-rmfrfs@gmail.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt

-* NXP FXAS21002C Gyroscope device tree bindings
-
-http://www.nxp.com/products/sensors/gyroscopes/3-axis-digital-gyroscope:FXAS21002C
-
-Required properties:
-  - compatible : should be "nxp,fxas21002c"
-  - reg : the I2C address of the sensor or SPI chip select number for the
-          device.
-  - vdd-supply: phandle to the regulator that provides power to the sensor.
-  - vddio-supply: phandle to the regulator that provides power to the bus.
-
-Optional properties:
-  - reset-gpios : gpio used to reset the device, see gpio/gpio.txt
-  - interrupts : device support 2 interrupts, INT1 and INT2,
-                 the interrupts can be triggered on rising or falling edges.
-                 See interrupt-controller/interrupts.txt
-  - interrupt-names: should contain "INT1" or "INT2", the gyroscope interrupt
-                     line in use.
-  - drive-open-drain: the interrupt/data ready line will be configured
-                      as open drain, which is useful if several sensors share
-                      the same interrupt line. This is a boolean property.
-                      (This binding is taken from pinctrl/pinctrl-bindings.txt)
-
-Example:
-
-gyroscope@20 {
-	compatible = "nxp,fxas21002c";
-	reg = <0x20>;
-	vdd-supply = <&reg_peri_3p15v>;
-	vddio-supply = <&reg_peri_3p15v>;
-};

Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/gyroscope/nxp,fxas21002c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP FXAS21002C Gyroscope
+
+maintainers:
+  - Rui Miguel Silva <rmfrfs@gmail.com>
+
+description: |
+  3 axis digital gyroscope device with an I2C and SPI interface.
+  http://www.nxp.com/products/sensors/gyroscopes/3-axis-digital-gyroscope:FXAS21002C
+
+properties:
+  compatible:
+    const: nxp,fxas21002c
+
+  reg:
+    maxItems: 1
+
+  vdd-supply:
+    description: Regulator that provides power to the sensor
+
+  vddio-supply:
+    description: Regulator that provides power to the bus
+
+  reset-gpios:
+    maxItems: 1
+    description: GPIO connected to reset
+
+  interrupts:
+    minItems: 1
+    maxItems: 2
+    description: Either interrupt may be triggered on rising or falling edges.
+
+  interrupt-names:
+    minItems: 1
+    maxItems: 2
+    items:
+      enum:
+        - INT1
+        - INT2
+
+  drive-open-drain:
+    type: boolean
+    description: the interrupt/data ready line will be configured as open drain,
+                 which is useful if several sensors share the same interrupt
+                 line.
+
+  spi-max-frequency:
+    maximum: 2000000
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gyroscope@20 {
+          compatible = "nxp,fxas21002c";
+          reg = <0x20>;
+
+          vdd-supply = <&reg_peri_3p15v>;
+          vddio-supply = <&reg_peri_3p15v>;
+
+          interrupt-parent = <&gpio1>;
+          interrupts = <7 IRQ_TYPE_EDGE_RISING>;
+          interrupt-names = "INT1";
+        };
+    };
+    spi0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gyroscope@0 {
+          compatible = "nxp,fxas2102c";
+          reg = <0x0>;
+
+          spi-max-frequency = <2000000>;
+
+          interrupt-parent = <&gpio2>;
+          interrupts = <7 IRQ_TYPE_EDGE_RISING>;
+          interrupt-names = "INT2";
+        };
+    };

MAINTAINERS

@@ -12417,7 +12417,7 @@ NXP FXAS21002C DRIVER
 M:	Rui Miguel Silva <rmfrfs@gmail.com>
 L:	linux-iio@vger.kernel.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt
+F:	Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.yaml
 F:	drivers/iio/gyro/fxas21002c.h
 F:	drivers/iio/gyro/fxas21002c_core.c
 F:	drivers/iio/gyro/fxas21002c_i2c.c