linux-kernel - Re: [RFC PATCH v2] arm64: dts: qcom: sm8750-mtp: Add WiFi and Bluetooth

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Message-ID: <l6u4y3suv3dpylexbiiznhcuyanlc4ouizhzj2cchblaf6o4wg@fe4laxrioaj5>
Date: Mon, 11 Aug 2025 17:22:38 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.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>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2] arm64: dts: qcom: sm8750-mtp: Add WiFi and
 Bluetooth

On Mon, Aug 11, 2025 at 03:10:56PM +0200, Krzysztof Kozlowski wrote:
> MTP8750 rev 2.0 (power grid v8) boards come as two different variants
> with different WiFi chips: WCN7850 and WCN786x.  WCN7850 is already
> supported by the kernel, but WCN786x is not.  Both of the board variants
> are considered newest revisions and the difference is only in MCN
> numbers and internal codenames.

Are they soldered on board, installed via add-on cards or installed via
M.2 slot?

Are they going to be somewhat compatible (e.g. on the BT side?)

> 
> Add WCN7850 WiFi and Bluetooth to the MTP8750, stating that this DTS
> represents the WCN7850 variant.  The S4D and S5F regulators should
> operate at 0.85 V, thus adjust lower constraint and regulator name.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---

-- 
With best wishes
Dmitry