linux-kernel - Re: [PATCH 14/14] arm64: dts: qcom: sm8150-hdk: describe WiFi/BT properly

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Message-ID: <df7qz7oz5et7px3ghdfteuyiyistbrpei5tq62s6uwmzng4ols@gklfvzhbf7tm>
Date: Wed, 31 Dec 2025 19:12:37 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bartosz Golaszewski <brgl@...nel.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Jeff Johnson <jjohnson@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Balakrishna Godavarthi <quic_bgodavar@...cinc.com>,
        Matthias Kaehlcke <mka@...omium.org>, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, linux-wireless@...r.kernel.org,
        ath10k@...ts.infradead.org, linux-pm@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>
Subject: Re: [PATCH 14/14] arm64: dts: qcom: sm8150-hdk: describe WiFi/BT
 properly

On Wed, Dec 31, 2025 at 01:16:30PM +0100, Konrad Dybcio wrote:
> On 12/31/25 12:36 AM, Dmitry Baryshkov wrote:
> > Properly describe the PMU present as a part of the onboard WCN3998
> > WiFi/BT chip. Enable Bluetooth part of the chip too.
> 
> [...]
> 
> > +	wcn3998-pmu {
> > +		compatible = "qcom,wcn3998-pmu";
> > +
> > +		pinctrl-0 = <&sw_ctrl_default>;
> > +		pinctrl-names = "default";
> > +
> > +		vddio-supply = <&vreg_s4a_1p8>;
> > +		vddxo-supply = <&vreg_l7a_1p8>;
> > +		vddrfa1p3-supply = <&vreg_l2c_1p3>;
> > +		vddch0-supply = <&vreg_l11c_3p3>;
> > +		vddch1-supply = <&vreg_l10c_3p3>;
> 
> Again, please double-check - I see UFS VCC is on this line too and I
> would guesstimate that antenna supplies may be separate

UFS VCC is L10A, while this is L10C. I've doublechecked the schematics.
L11 / L10 of PM8150L go to WiFi, L10 of PM8150 goes to UFS.

> 
> Konrad

-- 
With best wishes
Dmitry