linux-kernel - Re: [PATCH v16 0/9] Add PWM support for IPQ chipsets

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Message-ID: <3cb50330-effc-4089-b80c-d454bccc63f3@oss.qualcomm.com>
Date: Fri, 3 Oct 2025 14:34:31 +0530
From: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
To: 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 10/1/2025 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.

Thanks,

Kathiravan T.