Re: [PATCH v3 2/4] dt-bindings: gpio: add support for NXP S32G2/S32G3 SoCs

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On 20/09/2024 15:33, Andrei Stefanescu wrote:
> Hi Conor,
> 
> Thank you for your review!
> 
> On 20/09/2024 15:46, Conor Dooley wrote:
>> On Thu, Sep 19, 2024 at 04:47:22PM +0300, Andrei Stefanescu wrote:
>>> Add support for the GPIO driver of the NXP S32G2/S32G3 SoCs.
>>>
>>> Signed-off-by: Phu Luu An <phu.luuan@xxxxxxx>
>>> Signed-off-by: Larisa Grigore <larisa.grigore@xxxxxxx>
>>> Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@xxxxxxx>
>>> Signed-off-by: Andrei Stefanescu <andrei.stefanescu@xxxxxxxxxxx>
>>> ---
>>>  .../bindings/gpio/nxp,s32g2-siul2-gpio.yaml   | 107 ++++++++++++++++++
>>>  1 file changed, 107 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml b/Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml
>>> new file mode 100644
>>> index 000000000000..0548028e6745
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml
>>> @@ -0,0 +1,107 @@
>>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause
>>> +# Copyright 2024 NXP
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/gpio/nxp,s32g2-siul2-gpio.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: NXP S32G2 SIUL2 GPIO controller
>>> +
>>> +maintainers:
>>> +  - Ghennadi Procopciuc <Ghennadi.Procopciuc@xxxxxxx>
>>> +  - Larisa Grigore <larisa.grigore@xxxxxxx>
>>> +  - Andrei Stefanescu <andrei.stefanescu@xxxxxxxxxxx>
>>> +
>>> +description:
>>> +  Support for the SIUL2 GPIOs found on the S32G2 and S32G3
>>> +  chips. It includes an IRQ controller for all pins which have
>>> +  an EIRQ associated.
>>> +
>>> +properties:
>>> +  compatible:
>>> +    items:
>>> +      - const: nxp,s32g2-siul2-gpio
>>
>> Commit message and binding description say s32g2 and s32g3, but there's
>> only a compatible here for g2.
> 
> Yes, the SIUL2 GPIO hardware is the same for both S32G2 and S32G3 SoCs. I plan
> to reuse the same compatible when I add the SIUL2 GPIO device tree node for
> the S32G3 boards. Would that be ok?

There are only few exceptions where re-using compatible is allowed. Was
S32G on them? Please consult existing practice/maintainers and past reviews.

Best regards,
Krzysztof





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