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

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Message-ID: <763d689b-35da-40db-8605-52e408728df0@oss.qualcomm.com>
Date: Thu, 13 Feb 2025 00:49:32 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
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 11.02.2025 10:19 PM, Dmitry Baryshkov wrote:
> 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.

Alright, let's kick the can down the road.. hopefully not too far though

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad