linux-kernel - Re: [PATCH v3 2/3] dt-bindings: input: qcom,pm8xxx-vib: add new SPMI vibrator module

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Date:   Thu, 27 Jul 2023 09:09:19 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Fenglin Wu <quic_fenglinw@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        agross@...nel.org, andersson@...nel.org,
        dmitry.baryshkov@...aro.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org
Cc:     quic_collinsd@...cinc.com, quic_subbaram@...cinc.com,
        quic_kamalw@...cinc.com, jestar@....qualcomm.com
Subject: Re: [PATCH v3 2/3] dt-bindings: input: qcom,pm8xxx-vib: add new SPMI
 vibrator module

On 25/07/2023 08:26, Fenglin Wu wrote:
> 
> 
> On 7/25/2023 1:53 PM, Krzysztof Kozlowski wrote:
>> On 25/07/2023 07:41, Fenglin Wu wrote:
>>> Add compatible string 'qcom,spmi-vib-gen2' for vibrator module inside
>>> PMI632, PMI7250B, PM7325B, PM7550BA. Also, add 'qcom,spmi-vib-gen1'
>>> string for the SPMI vibrator inside PM8916 to maintain the completeness
>>> of the hardware version history for SPMI vibrators.
>>>
>>> Signed-off-by: Fenglin Wu <quic_fenglinw@...cinc.com>
>>> ---
>>>   .../bindings/input/qcom,pm8xxx-vib.yaml        | 18 ++++++++++++++----
>>>   1 file changed, 14 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/input/qcom,pm8xxx-vib.yaml b/Documentation/devicetree/bindings/input/qcom,pm8xxx-vib.yaml
>>> index c8832cd0d7da..ab778714ad29 100644
>>> --- a/Documentation/devicetree/bindings/input/qcom,pm8xxx-vib.yaml
>>> +++ b/Documentation/devicetree/bindings/input/qcom,pm8xxx-vib.yaml
>>> @@ -11,10 +11,20 @@ maintainers:
>>>   
>>>   properties:
>>>     compatible:
>>> -    enum:
>>> -      - qcom,pm8058-vib
>>> -      - qcom,pm8916-vib
>>> -      - qcom,pm8921-vib
>>> +    oneOf:
>>> +      - enum:
>>> +          - qcom,pm8058-vib
>>> +          - qcom,pm8916-vib
>>> +          - qcom,pm8921-vib
>>> +          - qcom,spmi-vib-gen1
>>> +          - qcom,spmi-vib-gen2
>>
>> Generic compatibles should not be alone. Drop both lines.
> 
> Sure. I will remove 'qcom,spmi-vib-gen2'.
> Should I also keep 'qcom,spmi-vib-gen1' as generic compatible and move 
> 'qcom,pm8916-vib' as its fallback as following?

I would drop all of generic ones. Entirely remove qcom,spmi-vib-gen2 and
qcom,spmi-vib-gen1.

Use device specific compatibles names only. As fallback and as first
compatible.

Best regards,
Krzysztof