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[PATCH 3/5] dt-bindings: iio: Add adis16550 bindings

Robert Budai posted 5 patches 3 weeks, 6 days ago
Only 2 patches received!
[PATCH 3/5] dt-bindings: iio: Add adis16550 bindings
Posted by Robert Budai 3 weeks, 6 days ago 
From: Ramona Gradinariu <ramona.gradinariu@analog.com>

Document the ADIS16550 device devicetree bindings.

Co-developed-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Ramona Gradinariu <ramona.gradinariu@analog.com>
---
 .../bindings/iio/imu/adi,adis16550.yaml       | 95 +++++++++++++++++++
 MAINTAINERS                                   |  9 ++
 2 files changed, 104 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml

diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
new file mode 100644
index 000000000000..a4690b39f0bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/adi,adis16550.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADIS16550 and similar IMUs
+
+maintainers:
+  - Nuno Sa <nuno.sa@analog.com>
+  - Ramona Gradinariu <ramona.gradinariu@analog.com>
+  - Antoniu Miclaus <antoniu.miclaus@analog.com>
+
+properties:
+  compatible:
+    enum:
+      - adi,adis16550
+      - adi,adis16550w
+
+  reg:
+    maxItems: 1
+
+  spi-cpha: true
+
+  spi-cpol: true
+
+  spi-max-frequency:
+    maximum: 15000000
+
+  vdd-supply: true
+
+  interrupts:
+    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
+
+  clocks:
+    maxItems: 1
+    description: If not provided, then the internal clock is used.
+
+  adi,sync-mode:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: |
+      Configures the device SYNC pin.
+    enum:
+      - direct_sync
+      - scaled_sync
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - spi-cpha
+  - spi-cpol
+  - spi-max-frequency
+  - vdd-supply
+
+allOf:
+  - if:
+      properties:
+        adi,sync-mode:
+          enum: [direct_sync, scaled_sync]
+
+    then:
+      dependencies:
+        adi,sync-mode: [ clocks ]
+
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        imu@0 {
+            compatible = "adi,adis16550";
+            reg = <0>;
+            spi-max-frequency = <15000000>;
+            spi-cpol;
+            spi-cpha;
+            vdd-supply = <&vdd>;
+            interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-parent = <&gpio>;
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index a27407950242..4f45478d271a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1411,6 +1411,15 @@ W:	https://ez.analog.com/linux-software-drivers
 F:	Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
 F:	drivers/iio/imu/adis16475.c
 
+ANALOG DEVICES INC ADIS16550 DRIVER
+M:	Nuno Sa <nuno.sa@analog.com>
+M:	Ramona Gradinariu <ramona.gradinariu@analog.com>
+M:	Antoniu Miclaus <antoniu.miclaus@analog.com>
+L:	linux-iio@vger.kernel.org
+S:	Supported
+W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
+
 ANALOG DEVICES INC ADM1177 DRIVER
 M:	Michael Hennerich <Michael.Hennerich@analog.com>
 L:	linux-hwmon@vger.kernel.org
-- 
2.34.1
Re: [PATCH 3/5] dt-bindings: iio: Add adis16550 bindings
Posted by Jonathan Cameron 3 weeks, 6 days ago 
On Mon, 28 Oct 2024 14:35:43 +0200
Robert Budai <robert.budai@analog.com> wrote:

> From: Ramona Gradinariu <ramona.gradinariu@analog.com>
> 
> Document the ADIS16550 device devicetree bindings.
What is the difference between the 16550 and 16550w.
Need to give an indication here of why the need separate compatibles.
 
> Co-developed-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
> Signed-off-by: Ramona Gradinariu <ramona.gradinariu@analog.com>
> ---
>  .../bindings/iio/imu/adi,adis16550.yaml       | 95 +++++++++++++++++++
>  MAINTAINERS                                   |  9 ++
>  2 files changed, 104 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
> new file mode 100644
> index 000000000000..a4690b39f0bd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/imu/adi,adis16550.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices ADIS16550 and similar IMUs
> +
> +maintainers:
> +  - Nuno Sa <nuno.sa@analog.com>
> +  - Ramona Gradinariu <ramona.gradinariu@analog.com>
> +  - Antoniu Miclaus <antoniu.miclaus@analog.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,adis16550
> +      - adi,adis16550w
> +
> +  reg:
> +    maxItems: 1
> +
> +  spi-cpha: true
> +
> +  spi-cpol: true
> +
> +  spi-max-frequency:
> +    maximum: 15000000
> +
> +  vdd-supply: true
> +
> +  interrupts:
> +    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
> +
> +  clocks:
> +    maxItems: 1
> +    description: If not provided, then the internal clock is used.
> +
> +  adi,sync-mode:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: |
> +      Configures the device SYNC pin.
> +    enum:
> +      - direct_sync
> +      - scaled_sync
More detail needed on this. I'm not sure why it belongs in DT and
can't be controlled based on clock input and requested sampling
frequency.  

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - spi-cpha
> +  - spi-cpol
> +  - spi-max-frequency
> +  - vdd-supply
> +
> +allOf:
> +  - if:
> +      properties:
> +        adi,sync-mode:
> +          enum: [direct_sync, scaled_sync]
> +
> +    then:
> +      dependencies:
> +        adi,sync-mode: [ clocks ]
> +
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        imu@0 {
> +            compatible = "adi,adis16550";
> +            reg = <0>;
> +            spi-max-frequency = <15000000>;
> +            spi-cpol;
> +            spi-cpha;
> +            vdd-supply = <&vdd>;
> +            interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
> +            interrupt-parent = <&gpio>;
> +        };
> +    };
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index a27407950242..4f45478d271a 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1411,6 +1411,15 @@ W:	https://ez.analog.com/linux-software-drivers
>  F:	Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
>  F:	drivers/iio/imu/adis16475.c
>  
> +ANALOG DEVICES INC ADIS16550 DRIVER
> +M:	Nuno Sa <nuno.sa@analog.com>
> +M:	Ramona Gradinariu <ramona.gradinariu@analog.com>
> +M:	Antoniu Miclaus <antoniu.miclaus@analog.com>
> +L:	linux-iio@vger.kernel.org
> +S:	Supported
> +W:	https://ez.analog.com/linux-software-drivers
> +F:	Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml
> +
>  ANALOG DEVICES INC ADM1177 DRIVER
>  M:	Michael Hennerich <Michael.Hennerich@analog.com>
>  L:	linux-hwmon@vger.kernel.org
Re: [PATCH 3/5] dt-bindings: iio: Add adis16550 bindings
Posted by Krzysztof Kozlowski 2 weeks, 3 days ago 
On Mon, Oct 28, 2024 at 05:11:46PM +0000, Jonathan Cameron wrote:
> On Mon, 28 Oct 2024 14:35:43 +0200
> Robert Budai <robert.budai@analog.com> wrote:
> 
> > From: Ramona Gradinariu <ramona.gradinariu@analog.com>
> > 
> > Document the ADIS16550 device devicetree bindings.
> What is the difference between the 16550 and 16550w.
> Need to give an indication here of why the need separate compatibles.

There were no answers and it's almost two weeks. I am marking the patch
in DT patchwork as changes requested (which means it will disappear from
our view).

Best regards,
Krzysztof

Patchew 2.1-devel-b67e4c2

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