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Message-ID: <8cc1428c-dd23-4b20-8c79-5d6e7768d4b7@oss.qualcomm.com>
Date: Fri, 3 Oct 2025 15:09:34 +0530
From: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
To: George Moussalem <george.moussalem@...look.com>,
        Uwe Kleine-König <ukleinek@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Baruch Siach <baruch@...s.co.il>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-pwm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Devi Priya <quic_devipriy@...cinc.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Baruch Siach <baruch.siach@...lu.com>
Subject: Re: [PATCH v16 0/9] Add PWM support for IPQ chipsets


On 10/3/2025 3:00 PM, George Moussalem wrote:
> Hi Kathiravan,
>
> On 10/3/25 13:04, Kathiravan Thirumoorthy wrote:
>> On 10/1/2025 7:34 PM, George Moussalem via B4 Relay wrote:
>>> Add PWM driver and binding support for IPQ chipsets.
>>> Also, add nodes to add support for pwm in ipq6018, ipq5018, ipq5332, and
>>> ipq9574.
>>>
>>> I've picked up work based on Devi's last submission (v15) which dates
>>> back to 05 October 2023 as below SoCs are still active.
>>>
>>> V16:
>>>
>>>     Removed reg description in bindings as the offset is not relative to
>>>     the TCSR region anymore since simple-mfd support was dropped and PWM
>>>     nodes defined as their own nodes, not child nodes. Updated the example
>>>     too.
>>>
>>>     Dropped patch to add simple-mfd support to the qcom,tcsr bindings
>> George, thanks for taking up this series.
>>
>> Can you elaborate on why the qcom,tcsr binding change is dropped and
>> made the PWM as an independent node? IIUC, it should be child of TCSR
>> node. In V15, I see the qcom,tcsr binding is applied and *dropped only*
>> due to dependencies / lack of information on the "pwm-cells" property.
> Please see below patch where it was decided to drop simple-mfd as TCSR
> is configuration only and any child devices should be defined outside of it:
> https://lore.kernel.org/all/20220909091056.128949-1-krzysztof.kozlowski@linaro.org/


Hmm... Sorry I missed to check this one. Thanks for pointing it out.


>
>
>> Thanks,
>>
>> Kathiravan T.
>>
> Best regards,
> George

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