linux-kernel - Re: [PATCH] arm64: dts: qcom: x1e78100-t14s: enable SDX62 modem

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Message-ID: <04ada91e-bf41-4be6-9021-96bcb781a40b@oss.qualcomm.com>
Date: Sat, 29 Mar 2025 13:06:54 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Abel Vesa <abel.vesa@...aro.org>, Johan Hovold <johan+linaro@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Dennis Gilmore <dgilmore@...hat.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: x1e78100-t14s: enable SDX62 modem

On 3/28/25 10:29 AM, Abel Vesa wrote:
> On 25-03-27 09:14:27, Johan Hovold wrote:
>> Enable PCIe5 and the SDX62 modem present on some T14s.
>>
>> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
>> ---
>>
>> I don't have a modem in my T14s, but this is based on the work I did to
>> enable the modem on the CRD reference design and the T14s schematics.
>>
> 
> What happens with T14s variants that do not have the WWAN ?
> 
> Is it OK to enable it on those, HW-wise ?
> 
> (Hope we don't have to split the devicetree again, like we did for the
> panel)

Unless Lenovo planted something else on these GPIOs (doubt), it's even better
to enable it, as UEFI brings up this controller anyway

Konrad