Re: [PATCH v2 7/8] dt-bindings: iio: adc: add adi,ad7606c-{16,18} compatible strings

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On 02/09/2024 20:38, Alexandru Ardelean wrote:
> On Mon, Sep 2, 2024 at 2:55 PM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
>>
>> On Mon, Sep 02, 2024 at 01:36:30PM +0300, Alexandru Ardelean wrote:
>>>    reg:
>>> @@ -114,6 +118,25 @@ properties:
>>>        assumed that the pins are hardwired to VDD.
>>>      type: boolean
>>>
>>> +patternProperties:
>>> +  "^channel@([0-7])$":
>>> +    type: object
>>> +    $ref: adc.yaml
>>> +    unevaluatedProperties: false
>>> +
>>> +    properties:
>>> +      reg:
>>> +        description: The channel number.
>>> +        minimum: 0
>>> +        maximum: 7
>>> +
>>> +      diff-channels: true
>>
>> Shouldn't this be specific?
> 
> Umm.
> Specific how?
> Like if:then check for certain compatible strings?

Ah, no, list is already constrained to two items. Then just drop it.
What's the point of listing it here?


> 
>>
>>> +
>>> +      bipolar: true

Same, drop.

>>> +
>>> +    required:
>>> +      - reg
>>> +
>>>  required:
>>>    - compatible
>>>    - reg
>>> @@ -202,4 +225,44 @@ examples:
>>>              standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
>>>          };
>>>      };
>>> +  - |
>>> +    #include <dt-bindings/gpio/gpio.h>
>>> +    #include <dt-bindings/interrupt-controller/irq.h>
>>> +    spi {
>>> +        #address-cells = <1>;
>>> +        #size-cells = <0>;
>>> +
>>> +        adc@0 {
>>> +            compatible = "adi,ad7606c-18";
>>> +            reg = <0>;
>>> +            spi-max-frequency = <1000000>;
>>> +            spi-cpol;
>>> +            spi-cpha;
>>> +
>>> +            avcc-supply = <&adc_vref>;
>>> +            vdrive-supply = <&vdd_supply>;
>>> +
>>> +            interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
>>> +            interrupt-parent = <&gpio>;
>>> +
>>> +            adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
>>> +
>>> +            adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
>>> +            reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
>>> +            adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
>>> +            standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
>>> +
>>> +            adi,sw-mode;
>>> +
>>> +            channel@1 {
>>> +                reg = <1>;
>>> +                diff-channel;
>>
>> Where is this property defined (which schema)?
>>
>> Did you test it?
> 
> Tested on my board.

How can you test a binding on a board?

> But forgot to update the DT schema docs.
> Though, if you're referring to testing it somehow via some make
> command, I'm a little behind on how all this works now.
> I'll go re-check the "make dtbs_check" and similar commands.

Please read carefully writing-schema and writing-bindings.


Best regards,
Krzysztof





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