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SubjectRe: [PATCH 1/2] dt-bindings: pinctrl: mediatek: deprecate custom drive strength property
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On 28/03/2023 15:41, AngeloGioacchino Del Regno wrote:
> Il 28/03/23 15:06, Alexandre Mergnat ha scritto:
>> Deprecate mediatek,drive-strength-adv which shall not exist, that was an
>> unnecessary property that leaked upstream from downstream kernels and
>> there's no reason to use it.
>>
>> The generic property drive-strength-microamp should be used instead.
>>
>> Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
>> ---
>> .../devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml | 8 ++++++--
>> .../devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml | 6 +++++-
>> 2 files changed, 11 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
>> index c30cd0d010dd..b82a066b91ec 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
>> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
>
> Thanks for doing MT8183!!!
>
>> @@ -110,8 +110,13 @@ patternProperties:
>> drive-strength:
>
> ..snip..
>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml
>> index 4b96884a1afc..347f533776ba 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml
>> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml
>> @@ -91,8 +91,13 @@ patternProperties:
>>
>> input-schmitt-disable: true
>>
>> + drive-strength-microamp:
>> + enum: [125, 250, 500, 1000]
>> +
>> mediatek,drive-strength-adv:
>> + deprecated: true
>
> In the case of MT8365, since there's *no* devicetree using this property, *at all*,
> I think you can even just entirely remove this block, as that should not be
> considered an ABI breakage in that case.
>
> Krzysztof, can you please confirm?

If it is defined as ABI in a released kernel, then should be rather
deprecated.

Best regards,
Krzysztof

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