linux-kernel - Re: [PATCH v4 6/6] arm64: dts: qcom: qrb2210-rb1: add Bluetooth support

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Message-ID: <CAA8EJpq504V48qqSX0mzxCffUkq_xpu_UE+qubB46A7zon=0iw@mail.gmail.com>
Date: Tue, 11 Feb 2025 23:19:37 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Marcel Holtmann <marcel@...tmann.org>, Luiz Augusto von Dentz <luiz.dentz@...il.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Balakrishna Godavarthi <quic_bgodavar@...cinc.com>, Rocky Liao <quic_rjliao@...cinc.com>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	linux-bluetooth@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v4 6/6] arm64: dts: qcom: qrb2210-rb1: add Bluetooth support

On Tue, 11 Feb 2025 at 16:52, Konrad Dybcio
<konrad.dybcio@....qualcomm.com> wrote:
>
> On 7.02.2025 9:41 PM, Dmitry Baryshkov wrote:
> > Add support for the onboard WCN3950 BT/WiFi chip. Corresponding firmware
> > has been merged to linux-firmware and should be available in the next
> > release.
> >
> > Bluetooth: hci0: setting up wcn399x
> > Bluetooth: hci0: QCA Product ID   :0x0000000f
> > Bluetooth: hci0: QCA SOC Version  :0x40070120
> > Bluetooth: hci0: QCA ROM Version  :0x00000102
> > Bluetooth: hci0: QCA Patch Version:0x00000001
> > Bluetooth: hci0: QCA controller version 0x01200102
> > Bluetooth: hci0: QCA Downloading qca/cmbtfw12.tlv
> > Bluetooth: hci0: QCA Downloading qca/cmnv12.bin
> > Bluetooth: hci0: QCA setup on UART is completed
> >
> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > ---
>
> [...]
>
> > +&uart3 {
> > +     /delete-property/ interrupts;
> > +     interrupts-extended = <&intc GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH>,
> > +                           <&tlmm 11 IRQ_TYPE_LEVEL_HIGH>;
> > +     pinctrl-0 = <&uart3_default>;
> > +     pinctrl-1 = <&uart3_sleep>;
> > +     pinctrl-names = "default", "sleep";
> > +
> > +     status = "okay";
> > +
> > +     bluetooth {
> > +             compatible = "qcom,wcn3950-bt";
> > +
> > +             vddio-supply = <&pm4125_l15>;
> > +             vddxo-supply = <&pm4125_l13>;
> > +             vddrf-supply = <&pm4125_l10>;
> > +             vddch0-supply = <&pm4125_l22>;
> > +             enable-gpios = <&tlmm 87 GPIO_ACTIVE_HIGH>;
> > +             max-speed = <3200000>;
>
> I suppose we don't need a power sequencer for this smaller,
> tightly-integrated-via-snoc chip?

We can (and should) have it in a longer term. Currently none of
wcm39xx chips have a powerseq implementation.

-- 
With best wishes
Dmitry