diff mbox series

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

Message ID 20200316125312.39178-7-nuno.sa@analog.com (mailing list archive)
State New, archived
Headers show
Series Support ADIS16475 and similar IMUs | expand

Commit Message

Nuno Sa March 16, 2020, 12:53 p.m. UTC
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

Comments

Jonathan Cameron March 22, 2020, 6:23 p.m. UTC | #1
On Mon, 16 Mar 2020 13:53:12 +0100
Nuno Sá <nuno.sa@analog.com> wrote:

> Document the ADIS16475 device devicetree bindings.
> 
> Signed-off-by: Nuno Sá <nuno.sa@analog.com>

Hmm. A bit fiddly so definitely want a review from Rob.

Thanks,

Jonathan
> ---
> 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 {

Generic name for nodes.  imu I guess here.

> +                    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>
Rob Herring March 30, 2020, 8:32 p.m. UTC | #2
On Mon, Mar 16, 2020 at 01:53:12PM +0100, Nuno Sá wrote:
> 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 ]

You can remove this if/then if you...

> +
> +else:

> +  if:
> +    properties:
> +      adi,sync-mode:
> +        enum: [1, 2, 3]
> +
> +  then:
> +    dependencies:
> +      adi,sync-mode: [ clocks ]

...put this if by itself under an 'allOf'. (And then the 1st if should 
go under the 'allOf' too).

> +
> +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
>
Nuno Sa March 31, 2020, 9:11 a.m. UTC | #3
> From: linux-iio-owner@vger.kernel.org <linux-iio-owner@vger.kernel.org> On
> Behalf Of Rob Herring
> Sent: Montag, 30. März 2020 22:33
> To: Sa, Nuno <Nuno.Sa@analog.com>
> Cc: linux-iio@vger.kernel.org; devicetree@vger.kernel.org; Jonathan Cameron
> <jic23@kernel.org>; Hartmut Knaack <knaack.h@gmx.de>; Lars-Peter Clausen
> <lars@metafoo.de>; Peter Meerwald-Stadler <pmeerw@pmeerw.net>; Mark
> Rutland <mark.rutland@arm.com>; Ardelean, Alexandru
> <alexandru.Ardelean@analog.com>; Hennerich, Michael
> <Michael.Hennerich@analog.com>
> Subject: Re: [PATCH v2 6/6] dt-bindings: iio: Add adis16475 documentation
> 
> On Mon, Mar 16, 2020 at 01:53:12PM +0100, Nuno Sá wrote:
> > 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 ]
> 
> You can remove this if/then if you...
> 
> > +
> > +else:
> 
> > +  if:
> > +    properties:
> > +      adi,sync-mode:
> > +        enum: [1, 2, 3]
> > +
> > +  then:
> > +    dependencies:
> > +      adi,sync-mode: [ clocks ]
> 
> ...put this if by itself under an 'allOf'. (And then the 1st if should
> go under the 'allOf' too).
> 

I see. I was being a bit picky here. If I'm understanding correctly I actually tried that form and 
when playing with the example and setting compatible to "adis16505" and adi,sync-mode = <3> (for eg),
I was getting both messages:

 adis16475-3@0: adi,sync-mode:0:0: 3 is greater than the maximum of 2 
 adis16475-3@0: 'clocks' is a dependency of 'adi,sync-mode'

And in this case, I wanted to just have the first message. Either way, it should be clear that the first message needs
to be fixed. I will change to allOf...

- Nuno Sá
> > +
> > +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
> >
diff mbox series

Patch

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>