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Message-ID: <199167f2-0420-8c56-5156-35005069549d@linaro.org>
Date:   Sun, 4 Sep 2022 22:10:11 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Iskren Chernev <iskren.chernev@...il.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/14] dt-bindings: ufs: qcom: Add sm6115 binding

On 03/09/2022 19:54, Iskren Chernev wrote:
> 
> 
> On 9/1/22 19:11, Krzysztof Kozlowski wrote:
>> On 01/09/2022 10:24, Iskren Chernev wrote:
>>> Add SM6115 UFS to DT schema.
>>>
>>> Signed-off-by: Iskren Chernev <iskren.chernev@...il.com>
>>> ---
>>>  .../devicetree/bindings/ufs/qcom,ufs.yaml     | 26 +++++++++++++++++++
>>>  1 file changed, 26 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>> index f2d6298d926c..7c5f6e2e6d4c 100644
>>> --- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>> +++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
>>> @@ -28,6 +28,7 @@ properties:
>>>            - qcom,msm8998-ufshc
>>>            - qcom,sc8280xp-ufshc
>>>            - qcom,sdm845-ufshc
>>> +          - qcom,sm6115-ufshc
>>>            - qcom,sm6350-ufshc
>>>            - qcom,sm8150-ufshc
>>>            - qcom,sm8250-ufshc
>>> @@ -178,6 +179,31 @@ allOf:
>>>            minItems: 1
>>>            maxItems: 1
>>>
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - qcom,sm6115-ufshc
>>> +    then:
>>> +      properties:
>>> +        clocks:
>>> +          minItems: 8
>>> +          maxItems: 8
>>> +        clock-names:
>>> +          items:
>>> +            - const: core_clk
>>> +            - const: bus_aggr_clk
>>> +            - const: iface_clk
>>> +            - const: core_clk_unipro
>>> +            - const: core_clk_ice
>>
>> Use existing name and put it in the same place as existing variant - sdm845:
>> ice_core_clk
> 
> The only problem with sdm845 bindings is the presence of rx_lane1_sync_clk
> clock. I'm guessing I could pass zeros there, because it shouldn't be used. Or
> it could be moved to last property and then min/maxItems to guard, but that is
> a change to something more-or-less immutable.

I don't understand - what is the problem here. How presence of some
clock affects name of other clock and its place/location in list of clocks?


Best regards,
Krzysztof

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