linux-kernel - Re: [PATCH 1/2] dt-bindings: interrupt-controller: qcom,pdc: Document x1p42100 PDC

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Message-ID: <26838d5c-230e-425f-bd38-0160d30b00a0@oss.qualcomm.com>
Date: Wed, 31 Dec 2025 12:52:55 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Maulik Shah <maulik.shah@....qualcomm.com>,
        Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: interrupt-controller: qcom,pdc: Document
 x1p42100 PDC

On 12/31/25 11:49 AM, Krzysztof Kozlowski wrote:
> On 31/12/2025 11:18, Maulik Shah wrote:
>> Purwa shares the Hamoa (X1E80100) PDC device, but the hardware register
> 
> We don't use Hamoa name in upstream.

(the file is now called hamoa.dtsi)

Konrad

>> bug addressed in commit e9a48ea4d90b ("irqchip/qcom-pdc: Workaround
>> hardware register bug on X1E80100") is already fixed in Purwa silicon.
>>
>> Hamoa compatible forces the software workaround. Add PDC compatible
>> for purwa as "qcom,x1p42100-pdc" to remove the workaround from Purwa.
>>
>> Fixes: f08edb529916 ("arm64: dts: qcom: Add X1P42100 SoC and CRD")
> 
> Your are describing wrong bug being fixed... or actually not a bug.
> Every SoC should have dedicated compatible (see writing bindings) and
> missing compatible is not a bug.
> 
> Best regards,
> Krzysztof