Re: [PATCH] dt-bindings: i2c: nxp,pca9564: convert to DT schema

From: Akhila YS

Date: Thu Apr 09 2026 - 11:03:44 EST



On 09-04-2026 13:56, Krzysztof Kozlowski wrote:
> On Wed, Apr 08, 2026 at 08:23:31AM +0000, Akhila YS wrote:
>> Convert NXP PCA PCA9564/PCA9665 I2C controller to YAML format.
> DT schema, not YAML format. Look at your subject.


Okay, i will change it.

>
> ...
>
>> + reg:
>> + maxItems: 1
>> +
>> + "#address-cells":
>> + const: 1
>> +
>> + "#size-cells":
>> + const: 0
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + reset-gpios:
>> + maxItems: 1
>> +
>> + clock-frequency:
>> + default: 100000
>> +
>> +required:
>> + - compatible
>> + - reg
>> +
>> +additionalProperties: false
> And if you tested any DTS with this, you would see this cannot work.
> Look at other bindings - you miss ref to i2c-controller and
> unevaluatedProps. But the problem is that you are doing something which
> would never work, so I have doubts that you know what you are doing. One
> thing is to make a mistake, other thing is to post something can never
> work thus putting quite noticeable requirements on review.


You are right, i missed referencing the common i2c controller schema and
did not handle unevaluated properties correctly,which makes binding invalid.

>
> Please first learn how DTS and DT bindings work, before you post new
> patches.


Thank you for the review, i will work on it.

> Best regards,
> Krzysztof
>
--
Best Regards,
Akhila.