linux-kernel - Re: [PATCH 2/3] dt-bindings: pinctrl: qcom: Add sc7280 lpass lpi pinctrl compatible

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Date:   Wed, 27 Oct 2021 13:17:52 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>, agross@...nel.org,
        alsa-devel@...a-project.org, bgoswami@...eaurora.org,
        bjorn.andersson@...aro.org, broonie@...nel.org,
        devicetree@...r.kernel.org, judyhsiao@...omium.org,
        lgirdwood@...il.com, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, perex@...ex.cz, plai@...eaurora.org,
        robh+dt@...nel.org, rohitkr@...eaurora.org,
        srinivas.kandagatla@...aro.org, tiwai@...e.com
Cc:     Venkata Prasad Potturu <potturu@...eaurora.org>
Subject: Re: [PATCH 2/3] dt-bindings: pinctrl: qcom: Add sc7280 lpass lpi
 pinctrl compatible


On 10/7/2021 11:29 PM, Stephen Boyd wrote:
> Quoting Srinivasa Rao Mandadapu (2021-10-07 06:48:38)
>> Add device tree binding compatible name for Qualcomm SC7280 LPASS LPI pinctrl driver.
>>
>> Signed-off-by: Venkata Prasad Potturu <potturu@...eaurora.org>
>> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
>> ---
>>   Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml
>> index e47ebf9..578b283 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml
>> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,lpass-lpi-pinctrl.yaml
>> @@ -16,7 +16,9 @@ description: |
>>
>>   properties:
>>     compatible:
>> -    const: qcom,sm8250-lpass-lpi-pinctrl
>> +    enum:
>> +      - qcom,sc7280-lpass-lpi-pinctrl
>> +      - qcom,sm8250-lpass-lpi-pinctrl
> I suspect we need to split the binding because the function list needs
> to change. Can you make a whole new file that's probably largely a copy
> of this file and/or extract the common bits into a meta schema and
> include that in both the files? Then the function list can be different
> and the clock property can be omitted in the sc7280 file.

As most are common functions and fixed number of LPASS Lpi pin 
configuration across platforms,

Only diff is ADSP bypass platforms 2 clocks are optional. Otherwise 
clock design also same for SC7280 and SM8250 based architecture.

So I feel Keeping common file is better for now.

-- 
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