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From: Khalid Faisal Ansari <khalid.ansari@oss.qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
	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>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 1/2] arm64: dts: qcom: shikra: unreserve GPIOs 14-17
Date: Wed, 26 Aug 2026 16:42:32 +0530	[thread overview]
Message-ID: <4b7abc36-4ea4-4dc9-b462-299e50c41176@oss.qualcomm.com> (raw)
In-Reply-To: <82fab943-2994-417c-929c-7c416386adbb@oss.qualcomm.com>



On 8/26/2026 2:41 PM, Konrad Dybcio wrote:
> On 8/25/26 9:13 PM, Khalid Faisal Ansari wrote:
>> GPIOs 14-17 were previously reserved in the tlmm gpio-reserved-ranges,
>> preventing Linux from accessing SPI5. Removing them from the reserved
>> list across all three Shikra EVK variants (CQM, CQS, IQS) enables it
>> for dTPM usecase.
>>
>> Signed-off-by: Khalid Faisal Ansari <khalid.ansari@oss.qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi | 1 -
>>   arch/arm64/boot/dts/qcom/shikra-iqs-som.dtsi | 1 -
>>   2 files changed, 2 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi b/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi
>> index 8ac42ff625a0..fde7fc035bf5 100644
>> --- a/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi
>> @@ -197,7 +197,6 @@ pm4125_l22: l22 {
>>   
>>   &tlmm {
>>   	gpio-reserved-ranges = <6 4>, /* Fingerprint SPI */
>> -			       <14 4>, /* eSE SPI */
> Is this bus going to be concurrently accessed by TZ?
No.
>
> Konrad


  reply	other threads:[~2026-08-26 11:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-25 19:13 [PATCH v4 0/2] arm64: dts: qcom: shikra: enable ST33 TPM support Khalid Faisal Ansari
2026-08-25 19:13 ` [PATCH v4 1/2] arm64: dts: qcom: shikra: unreserve GPIOs 14-17 Khalid Faisal Ansari
2026-08-26  9:10   ` Konrad Dybcio
2026-08-26  9:11   ` Konrad Dybcio
2026-08-26 11:12     ` Khalid Faisal Ansari [this message]
2026-08-25 19:13 ` [PATCH v4 2/2] arm64: dts: qcom: shikra: enable ST33 TPM Khalid Faisal Ansari
2026-08-26  9:11   ` Konrad Dybcio
2026-08-26 11:29     ` Khalid Faisal Ansari

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