Re: [PATCH v4 2/3] dt-bindings: input: Add TouchNetix axiom touchscreen

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On 05/12/2023 10:17, Kamel BOUHARA wrote:
> Le 2023-12-05 09:15, Krzysztof Kozlowski a écrit :
>> On 04/12/2023 15:05, Kamel Bouhara wrote:
>>> Add the TouchNetix axiom I2C touchscreen device tree bindings
>>> documentation.
>>>
>>> Signed-off-by: Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
>>
>>> +$id: 
>>> http://devicetree.org/schemas/input/touchscreen/touchnetix,ax54a.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: TouchNetix Axiom series touchscreen controller
>>> +
>>> +maintainers:
>>> +  - Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
>>> +
>>
>> Why you do not have ref to touchscreen? Is it not a touchscreen?
> 
> The common properties are not used or applicable here, should I still 
> ref touchscreen ?

Why they are not applicable? Do you get the panel coordinates and sizes
from device registers or are they fixed somehow in the controller?


...

> 
>>> +    description: I/O power supply regulator on VDDI pin
>>> +
>>> +required:
>>> +  - compatible
>>> +  - reg
>>
>> Supplies are usually required. Devices rarely can operate without  
>> power.
> 
> Indeed, can I still have them optional in the driver ?

Yes, I comment here only about the bindings. Bindings are not related to
your driver, but to hardware.


Best regards,
Krzysztof





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