Re: [PATCH] dt-bindings: gpio: add common consumer GPIO lines

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On 21/03/2022 19:20, Rob Herring wrote:
> On Tue, Mar 15, 2022 at 09:37:23AM +0100, Krzysztof Kozlowski wrote:
>> Typical GPIO lines like enable, powerdown, reset or wakeup are not
>> documented as common, which leads to new variations of these (e.g.
>> pwdn-gpios).  Add a common schema which serves also as a documentation
>> for preferred naming.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
>> ---
>>  .../bindings/gpio/gpio-consumer-common.yaml   | 36 +++++++++++++++++++
>>  1 file changed, 36 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
>> new file mode 100644
>> index 000000000000..098dc913f9e5
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
>> @@ -0,0 +1,36 @@
>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/gpio/gpio-consumer-common.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Common GPIO lines
>> +
>> +maintainers:
>> +  - Bartosz Golaszewski <brgl@xxxxxxxx>
>> +  - Linus Walleij <linus.walleij@xxxxxxxxxx>
>> +
>> +# do not select this schema for GPIO hogs
>> +select:
>> +  properties:
>> +    gpio-hog: false
> 
> 'select: true' should be sufficient here.
> 
>> +
>> +properties:
>> +  enable-gpios:
>> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> 
> Perhaps some sort of description on these.
> 
> I think these are always a single line, so 'maxItems: 1'.

I assume you meant all other as well (so reset-gpios, powerdown-gpios) -
also with maxItems:1.

I'll fix it.


Best regards,
Krzysztof



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