[PATCH v2 2/2] dt-bindings: iio: adc: add Texas Instruments ADS7924

Hugo Villeneuve posted 2 patches 2 years, 8 months ago
There is a newer version of this series
[PATCH v2 2/2] dt-bindings: iio: adc: add Texas Instruments ADS7924
Posted by Hugo Villeneuve 2 years, 8 months ago
From: Hugo Villeneuve <hvilleneuve@dimonoff.com>

Add device tree bindings document for the Texas Instruments ADS7924
ADC.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
---
 .../bindings/iio/adc/ti,ads7924.yaml          | 104 ++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
new file mode 100644
index 000000000000..a9d3e8778d11
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads7924.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI ADS7924 4 channels 12 bits I2C analog to digital converter
+
+maintainers:
+  - Hugo Villeneuve <hvilleneuve@dimonoff.com>
+
+description: |
+  Texas Instruments ADS7924 4 channels 12 bits I2C analog to digital converter
+
+  Specifications:
+    https://www.ti.com/lit/gpn/ads7924
+
+properties:
+  compatible:
+    const: ti,ads7924
+
+  reg:
+    maxItems: 1
+
+  vref-supply:
+    description:
+      The regulator supply for the ADC reference voltage (AVDD)
+
+  reset-gpios:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - vref-supply
+  - "#address-cells"
+  - "#size-cells"
+
+patternProperties:
+  "^channel@[0-3]+$":
+    $ref: "adc.yaml"
+    type: object
+    description: |
+      Represents the external channels which are connected to the ADC.
+
+    properties:
+      reg:
+        description: |
+          The channel number. It can have up to 4 channels numbered from 0 to 3.
+        items:
+          - minimum: 0
+            maximum: 3
+
+    required:
+      - reg
+
+    additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@48 {
+            compatible = "ti,ads7924";
+            reg = <0x48>;
+            vref-supply = <&ads7924_reg>;
+            reset-gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
+            interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-parent = <&gpio>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+            channel@0 {
+                reg = <0>;
+                label = "CH0";
+            };
+            channel@1 {
+                reg = <1>;
+                label = "CH1";
+            };
+            channel@2 {
+                reg = <2>;
+                label = "CH2";
+            };
+            channel@3 {
+                reg = <3>;
+                label = "CH3";
+            };
+        };
+    };
+...
-- 
2.30.2
Re: [PATCH v2 2/2] dt-bindings: iio: adc: add Texas Instruments ADS7924
Posted by Krzysztof Kozlowski 2 years, 8 months ago
On 10/01/2023 17:01, Hugo Villeneuve wrote:
> From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> 
> Add device tree bindings document for the Texas Instruments ADS7924
> ADC.
> 
> Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>

Please test the bindings before sending. It's better to use tools for
review than humans... we are all quite busy.

> ---
>  .../bindings/iio/adc/ti,ads7924.yaml          | 104 ++++++++++++++++++
>  1 file changed, 104 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> new file mode 100644
> index 000000000000..a9d3e8778d11
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> @@ -0,0 +1,104 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/ti,ads7924.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TI ADS7924 4 channels 12 bits I2C analog to digital converter
> +
> +maintainers:
> +  - Hugo Villeneuve <hvilleneuve@dimonoff.com>
> +
> +description: |
> +  Texas Instruments ADS7924 4 channels 12 bits I2C analog to digital converter
> +
> +  Specifications:
> +    https://www.ti.com/lit/gpn/ads7924
> +
> +properties:
> +  compatible:
> +    const: ti,ads7924
> +
> +  reg:
> +    maxItems: 1
> +
> +  vref-supply:
> +    description:
> +      The regulator supply for the ADC reference voltage (AVDD)
> +
> +  reset-gpios:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +  "#io-channel-cells":
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - vref-supply
> +  - "#address-cells"
> +  - "#size-cells"
> +
> +patternProperties:

Put it before "required:" block.

> +  "^channel@[0-3]+$":
> +    $ref: "adc.yaml"

Drop quotes.

> +    type: object
> +    description: |
> +      Represents the external channels which are connected to the ADC.
> +
> +    properties:
> +      reg:
> +        description: |
> +          The channel number. It can have up to 4 channels numbered from 0 to 3.
> +        items:
> +          - minimum: 0
> +            maximum: 3

Test your bindings, so you will see error here of missing label: true.

> +
> +    required:
> +      - reg
> +
> +    additionalProperties: false
> +

Missing additionalProperties: false.

> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        adc@48 {
> +            compatible = "ti,ads7924";
> +            reg = <0x48>;
> +            vref-supply = <&ads7924_reg>;
> +            reset-gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
> +            interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
> +            interrupt-parent = <&gpio>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +            channel@0 {
> +                reg = <0>;
> +                label = "CH0";
> +            };
> +            channel@1 {
> +                reg = <1>;
> +                label = "CH1";
> +            };
> +            channel@2 {
> +                reg = <2>;
> +                label = "CH2";
> +            };
> +            channel@3 {
> +                reg = <3>;
> +                label = "CH3";
> +            };
> +        };
> +    };
> +...

Best regards,
Krzysztof
Re: [PATCH v2 2/2] dt-bindings: iio: adc: add Texas Instruments ADS7924
Posted by Hugo Villeneuve 2 years, 8 months ago
On Wed, 11 Jan 2023 10:23:20 +0100
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote:

> On 10/01/2023 17:01, Hugo Villeneuve wrote:
> > From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> > 
> > Add device tree bindings document for the Texas Instruments ADS7924
> > ADC.
> > 
> > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> 
> Please test the bindings before sending. It's better to use tools for
> review than humans... we are all quite busy.

Hi,
will do from now on.

> > ---
> >  .../bindings/iio/adc/ti,ads7924.yaml          | 104 ++++++++++++++++++
> >  1 file changed, 104 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> > new file mode 100644
> > index 000000000000..a9d3e8778d11
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> > @@ -0,0 +1,104 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/adc/ti,ads7924.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: TI ADS7924 4 channels 12 bits I2C analog to digital converter
> > +
> > +maintainers:
> > +  - Hugo Villeneuve <hvilleneuve@dimonoff.com>
> > +
> > +description: |
> > +  Texas Instruments ADS7924 4 channels 12 bits I2C analog to digital converter
> > +
> > +  Specifications:
> > +    https://www.ti.com/lit/gpn/ads7924
> > +
> > +properties:
> > +  compatible:
> > +    const: ti,ads7924
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  vref-supply:
> > +    description:
> > +      The regulator supply for the ADC reference voltage (AVDD)
> > +
> > +  reset-gpios:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  "#address-cells":
> > +    const: 1
> > +
> > +  "#size-cells":
> > +    const: 0
> > +
> > +  "#io-channel-cells":
> > +    const: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - vref-supply
> > +  - "#address-cells"
> > +  - "#size-cells"
> > +
> > +patternProperties:
> 
> Put it before "required:" block.

Done.

> 
> > +  "^channel@[0-3]+$":
> > +    $ref: "adc.yaml"
> 
> Drop quotes.

Done.

> 
> > +    type: object
> > +    description: |
> > +      Represents the external channels which are connected to the ADC.
> > +
> > +    properties:
> > +      reg:
> > +        description: |
> > +          The channel number. It can have up to 4 channels numbered from 0 to 3.
> > +        items:
> > +          - minimum: 0
> > +            maximum: 3
> 
> Test your bindings, so you will see error here of missing label: true.

Added label.

> 
> > +
> > +    required:
> > +      - reg
> > +
> > +    additionalProperties: false
> > +
> 
> Missing additionalProperties: false.

Added.

> 
> > +examples:
> > +  - |
> > +    i2c {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        adc@48 {
> > +            compatible = "ti,ads7924";
> > +            reg = <0x48>;
> > +            vref-supply = <&ads7924_reg>;
> > +            reset-gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
> > +            interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
> > +            interrupt-parent = <&gpio>;
> > +            #address-cells = <1>;
> > +            #size-cells = <0>;
> > +            channel@0 {
> > +                reg = <0>;
> > +                label = "CH0";
> > +            };
> > +            channel@1 {
> > +                reg = <1>;
> > +                label = "CH1";
> > +            };
> > +            channel@2 {
> > +                reg = <2>;
> > +                label = "CH2";
> > +            };
> > +            channel@3 {
> > +                reg = <3>;
> > +                label = "CH3";
> > +            };
> > +        };
> > +    };
> > +...
> 
> Best regards,
> Krzysztof


-- 
Hugo Villeneuve <hugo@hugovil.com>
Re: [PATCH v2 2/2] dt-bindings: iio: adc: add Texas Instruments ADS7924
Posted by Rob Herring 2 years, 8 months ago
On Tue, 10 Jan 2023 11:01:24 -0500, Hugo Villeneuve wrote:
> From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> 
> Add device tree bindings document for the Texas Instruments ADS7924
> ADC.
> 
> Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> ---
>  .../bindings/iio/adc/ti,ads7924.yaml          | 104 ++++++++++++++++++
>  1 file changed, 104 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml: 'oneOf' conditional failed, one must be fixed:
	'unevaluatedProperties' is a required property
	'additionalProperties' is a required property
	hint: Either unevaluatedProperties or additionalProperties must be present
	from schema $id: http://devicetree.org/meta-schemas/core.yaml#
Error: Documentation/devicetree/bindings/iio/adc/ti,ads7924.example.dts:29.40-41 syntax error
FATAL ERROR: Unable to parse input tree
make[1]: *** [scripts/Makefile.lib:434: Documentation/devicetree/bindings/iio/adc/ti,ads7924.example.dtb] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1508: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230110160124.3853593-3-hugo@hugovil.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
Re: [PATCH v2 2/2] dt-bindings: iio: adc: add Texas Instruments ADS7924
Posted by Hugo Villeneuve 2 years, 8 months ago
On Tue, 10 Jan 2023 19:34:56 -0600
Rob Herring <robh@kernel.org> wrote:

> 
> On Tue, 10 Jan 2023 11:01:24 -0500, Hugo Villeneuve wrote:
> > From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> > 
> > Add device tree bindings document for the Texas Instruments ADS7924
> > ADC.
> > 
> > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
> > ---
> >  .../bindings/iio/adc/ti,ads7924.yaml          | 104 ++++++++++++++++++
> >  1 file changed, 104 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml
> > 
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/iio/adc/ti,ads7924.yaml: 'oneOf' conditional failed, one must be fixed:
> 	'unevaluatedProperties' is a required property
> 	'additionalProperties' is a required property
> 	hint: Either unevaluatedProperties or additionalProperties must be present
> 	from schema $id: http://devicetree.org/meta-schemas/core.yaml#
> Error: Documentation/devicetree/bindings/iio/adc/ti,ads7924.example.dts:29.40-41 syntax error
> FATAL ERROR: Unable to parse input tree
> make[1]: *** [scripts/Makefile.lib:434: Documentation/devicetree/bindings/iio/adc/ti,ads7924.example.dtb] Error 1
> make[1]: *** Waiting for unfinished jobs....
> make: *** [Makefile:1508: dt_binding_check] Error 2
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230110160124.3853593-3-hugo@hugovil.com
> 
> The base for the series is generally the latest rc1. A different dependency
> should be noted in *this* patch.

Hi Rob,
I already did specify the base-commit in the first patch of the series (cover letter). Do you also want me to add an additional message in *this* commit to specify the git repos and branch that were used? Or put this comment in the cover letter?

I tried to follow the documentation here:
    https://www.kernel.org/doc/html/v6.2-rc3/process/submitting-patches.html
but it was not clear as to what base branch to use when no "T:" field is found in the MAINTAINERS file.

> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
> 
> pip3 install dtschema --upgrade

I didn't run it for this series, my bad, I now have added it to my automated scripts to not forget it next time.

> 
> Please check and re-submit after running the above command yourself. Note
> that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> your schema. However, it must be unset to test all examples with your schema.

Done, thank you for your suggestions.

Hugo Villeneuve <hugo@hugovil.com>