linux-kernel - Re: [PATCH v2 1/4] dt-bindings: clock: qcom,sc7280-lpasscc: Remove qdsp6ss reg property

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Date:   Mon, 2 Jan 2023 17:03:22 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>,
        swboyd@...omium.org, agross@...nel.org, andersson@...nel.org,
        robh+dt@...nel.org, broonie@...nel.org, quic_plai@...cinc.com,
        krzysztof.kozlowski+dt@...aro.org, konrad.dybcio@...ainline.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_rohkumar@...cinc.com
Subject: Re: [PATCH v2 1/4] dt-bindings: clock: qcom,sc7280-lpasscc: Remove
 qdsp6ss reg property

On 30/12/2022 14:43, Srinivasa Rao Mandadapu wrote:
> The qdsp6ss memory region is being shared by ADSP remoteproc device and
> lpasscc clock device, hence causing memory conflict.
> As the qdsp6ss clocks are being enabled in remoteproc driver, remove
> clock controlling in the clock driver.
> 

That's an ABI break change. You cannot just drop it because the driver
will fail now to probe with old DTS.

This ABI break (and Fixes tag below) requires extensive justification
where is the bug and how it affects users. Otherwise, I see no reason
for ABI changes.

> Fixes: d15eb8012476 ("dt-bindings: clock: Add YAML schemas for LPASS clocks on SC7280")
> 

Drop blank line.

> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> Tested-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
> ---
>  Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
> index 6151fde..9c72b8e 100644
> --- a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
> +++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
> @@ -33,12 +33,10 @@ properties:
>  
>    reg:
>      items:
> -      - description: LPASS qdsp6ss register
>        - description: LPASS top-cc register
>  
Best regards,
Krzysztof