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From: "Maulik Shah (mkshah)" <maulik.shah@oss.qualcomm.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Thomas Gleixner <tglx@kernel.org>,
	Linus Walleij <linusw@kernel.org>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
	Sneh Mankad <sneh.mankad@oss.qualcomm.com>
Subject: Re: [PATCH 1/5] arm64: dts: qcom: x1e80100: Remove interconnect from SCM device
Date: Mon, 16 Mar 2026 10:02:18 +0530	[thread overview]
Message-ID: <5c100978-a371-4e2b-ad65-b160eee8fbdc@oss.qualcomm.com> (raw)
In-Reply-To: <20260313-nippy-seahorse-of-security-b1b6f6@quoll>



On 3/13/2026 7:26 PM, Krzysztof Kozlowski wrote:
> On Thu, Mar 12, 2026 at 09:26:35PM +0530, Maulik Shah wrote:
>> Interconnect from SCM device are optional and were added to get
>> additional performance benefit. These nodes however delays the
>> SCM firmware device probe due to dependency on interconnect and
> 
> So fix drivers.

Yes, will address in v2.

> 
>> results in NULL pointer dereference for the users of SCM device
>> driver APIs, such as PDC driver.
>>
>> Remove them from the scm device to unblock the user.
>>
>> Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com>
>> ---
>>  arch/arm64/boot/dts/qcom/hamoa.dtsi | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
>> index d7596ccf63b90a8a002ad6e77c0fb2c1b32ec9c8..ebecf43e0d462c431540257e299e3ace054901fd 100644
>> --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
>> @@ -308,8 +308,7 @@ eud_in: endpoint {
>>  	firmware {
>>  		scm: scm {
>>  			compatible = "qcom,scm-x1e80100", "qcom,scm";
>> -			interconnects = <&aggre2_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS
>> -					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
>> +			/* TODO: add interconnects */
> 
> NAK, interconnects were there already. So after applying your patch I
> can just revert it immediately solving the TODO.

Yes, this change will be dropped from v2 and instead will be using qcom_scm_is_available()
to handle the dependencies.

Thanks,
Maulik

  reply	other threads:[~2026-03-16  4:32 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-12 15:56 [PATCH 0/5] x1e80100: Enable PDC wake GPIOs and deepest idle state Maulik Shah
2026-03-12 15:56 ` [PATCH 1/5] arm64: dts: qcom: x1e80100: Remove interconnect from SCM device Maulik Shah
2026-03-13  2:11   ` Dmitry Baryshkov
2026-03-13 10:12     ` Maulik Shah (mkshah)
2026-03-13 11:59       ` Konrad Dybcio
2026-03-13 14:48         ` Dmitry Baryshkov
2026-03-16  9:39           ` Konrad Dybcio
2026-03-16 14:25             ` Dmitry Baryshkov
2026-03-18  9:33               ` Konrad Dybcio
2026-03-18 10:38                 ` Dmitry Baryshkov
2026-03-18 10:39                   ` Konrad Dybcio
2026-03-18 14:23                     ` Dmitry Baryshkov
2026-03-13 15:17         ` Maulik Shah (mkshah)
2026-03-13 14:47       ` Dmitry Baryshkov
2026-03-13 13:56   ` Krzysztof Kozlowski
2026-03-16  4:32     ` Maulik Shah (mkshah) [this message]
2026-03-12 15:56 ` [PATCH 2/5] dt-bindings: interrupt-controller: qcom,pdc: Document reg and QMP Maulik Shah
2026-03-13 13:55   ` Krzysztof Kozlowski
2026-03-12 15:56 ` [PATCH 3/5] irqchip/qcom-pdc: Configure PDC to pass through mode Maulik Shah
2026-03-13  2:22   ` Dmitry Baryshkov
2026-03-13  6:40     ` Maulik Shah (mkshah)
2026-03-13 11:49       ` Konrad Dybcio
2026-03-24  2:52   ` Bjorn Andersson
2026-03-12 15:56 ` [PATCH 4/5] arm64: dts: qcom: x1e80100: Add deepest idle state Maulik Shah
2026-03-13  2:30   ` Dmitry Baryshkov
2026-03-13  6:41     ` Maulik Shah (mkshah)
2026-03-13 13:57   ` Krzysztof Kozlowski
2026-03-16  4:36     ` Maulik Shah (mkshah)
2026-03-12 15:56 ` [PATCH 5/5] Revert "pinctrl: qcom: x1e80100: Bypass PDC wakeup parent for now" Maulik Shah

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