[PATCH v2 6/6] dt-bindings: iio: Add adis16475 documentation

["Nuno Sá" <nuno.sa@analog.com>]

Document the ADIS16475 device devicetree bindings.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
Changes in v2:
 * Remove burst32 property;
 * Rename clk-mode to adi,sync-mode;
 * Remove clock-names;
 * Add conditionals to state that clocks is only needed depending on adi,sync-mode property

 .../bindings/iio/imu/adi,adis16475.yaml       | 146 ++++++++++++++++++
 MAINTAINERS                                   |   1 +
 2 files changed, 147 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml

diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
new file mode 100644
index 000000000000..9eeb42773edd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
@@ -0,0 +1,146 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/adi,adis16475.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADIS16475 and similar IMUs
+
+maintainers:
+  - Nuno Sá <nuno.sa@analog.com>
+
+description: |
+  Analog Devices ADIS16475 and similar IMUs
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ADIS16475.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,adis16475-1
+      - adi,adis16475-2
+      - adi,adis16475-3
+      - adi,adis16477-1
+      - adi,adis16477-2
+      - adi,adis16477-3
+      - adi,adis16470
+      - adi,adis16465-1
+      - adi,adis16465-2
+      - adi,adis16465-3
+      - adi,adis16467-1
+      - adi,adis16467-2
+      - adi,adis16467-3
+      - adi,adis16500
+      - adi,adis16505-1
+      - adi,adis16505-2
+      - adi,adis16505-3
+      - adi,adis16507-1
+      - adi,adis16507-2
+      - adi,adis16507-3
+
+  reg:
+    maxItems: 1
+
+  spi-cpha: true
+
+  spi-cpol: true
+
+  spi-max-frequency:
+    maximum: 2000000
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  reset-gpios:
+    description:
+      Must be the device tree identifier of the RESET pin. If specified,
+      it will be asserted during driver probe. As the line is active low,
+      it should be marked GPIO_ACTIVE_LOW.
+    maxItems: 1
+
+  adi,sync-mode:
+    description:
+      Configures the device SYNC pin. The following modes are supported
+      0 - output_sync
+      1 - direct_sync
+      2 - scaled_sync
+      3 - pulse_sync
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 3
+
+  adi,scaled-output-hz:
+    description:
+      This property must be present if the clock mode is scaled-sync through
+      clock-names property. In this mode, the input clock can have a range
+      of 1Hz to 128HZ which must be scaled to originate an allowable sample
+      rate. This property specifies that rate.
+    minimum: 1900
+    maximum: 2100
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - spi-cpha
+  - spi-cpol
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - adi,adis16500
+          - adi,adis16505-1
+          - adi,adis16505-2
+          - adi,adis16505-3
+          - adi,adis16507-1
+          - adi,adis16507-2
+          - adi,adis16507-3
+
+then:
+  properties:
+    adi,sync-mode:
+      minimum: 0
+      maximum: 2
+
+  if:
+    properties:
+      adi,sync-mode:
+        enum: [1, 2]
+
+  then:
+    dependencies:
+      adi,sync-mode: [ clocks ]
+
+else:
+  if:
+    properties:
+      adi,sync-mode:
+        enum: [1, 2, 3]
+
+  then:
+    dependencies:
+      adi,sync-mode: [ clocks ]
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            adis16475: adis16475-3@0 {
+                    compatible = "adi,adis16475-3";
+                    reg = <0>;
+                    spi-cpha;
+                    spi-cpol;
+                    spi-max-frequency = <2000000>;
+                    interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+                    interrupt-parent = <&gpio>;
+            };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index f11262f1f3bb..f8ccc92ab378 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1015,6 +1015,7 @@ W:	http://ez.analog.com/community/linux-device-drivers
 S:	Supported
 F:	drivers/iio/imu/adis16475.c
 F:	Documentation/ABI/testing/sysfs-bus-iio-imu-adis16475
+F:	Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
 
 ANALOG DEVICES INC ADM1177 DRIVER
 M:	Beniamin Bia <beniamin.bia@analog.com>
-- 
2.25.1