Re: [PATCH] dt-bindings: gpio: mpfs-gpio: allow parsing of hog child nodes.

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On 25/08/2022 13:35, Krzysztof Kozlowski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On 25/08/2022 15:30, Conor.Dooley@xxxxxxxxxxxxx wrote:
>> On 25/08/2022 13:10, Krzysztof Kozlowski wrote:
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>>
>>> On 20/08/2022 23:41, Conor Dooley wrote:
>>>> From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
>>>>
>>>> The SD card and eMMC on PolarFire SoC based dev boards are sometimes
>>>> statically muxed using a GPIO. To facilitate this, enable gpio-hog
>>>> child node properties.
>>>>
>>>> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
>>>> ---
>>>>    .../bindings/gpio/microchip,mpfs-gpio.yaml     | 18 ++++++++++++++++++
>>>>    1 file changed, 18 insertions(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
>>>> index 110651eafa70..6704a7a52cd0 100644
>>>> --- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
>>>> +++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
>>>> @@ -44,6 +44,24 @@ properties:
>>>>
>>>>      gpio-controller: true
>>>>
>>>> +patternProperties:
>>>> +  "^.+-hog(?:-[0-9]+)?$":
>>>
>>> What is this pattern about: "(?:" ?
>>
>> Me being a pedant I suppose. "()" is a capture while "(?:)" is a match.
>> However, it does seem like json-schema suggests using "()":
>> https://json-schema.org/understanding-json-schema/reference/regular_expressions.html
>>
>> I don't mind & neither does the schema checker.
> 
> Use what existing sources are doing, so "^.+-hog(-[0-9]+)?$"


Willdo :)





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