linux-kernel - Re: [PATCH] arm64: dts: qcom: qcs8300-ride: Enable Bluetooth support

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Message-ID: <d86c455a-e9dd-4424-9c79-aa8eb429118d@oss.qualcomm.com>
Date: Fri, 14 Nov 2025 17:40:26 +0800
From: Wei Deng <wei.deng@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
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,
        linux-bluetooth@...r.kernel.org, cheng.jiang@....qualcomm.com,
        quic_jiaymao@...cinc.com, quic_chezhou@...cinc.com,
        quic_shuaz@...cinc.com
Subject: Re: [PATCH] arm64: dts: qcom: qcs8300-ride: Enable Bluetooth support

Hi Dmitry,
Thanks for your comments.

On 11/14/2025 4:14 AM, Dmitry Baryshkov wrote:
> On Thu, Nov 13, 2025 at 06:39:42PM +0530, Wei Deng wrote:
>> Enable BT on qcs8300-ride by adding a device tree node for BT.
>>
>> Signed-off-by: Wei Deng <wei.deng@....qualcomm.com>
>> ---
>> This patch depends on:
>> - WLAN
>> https://lore.kernel.org/all/20251113055148.2729943-1-wei.zhang@oss.qualcomm.com/
>> ---
>>  arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 28 +++++++++++++++++++++++
>>  1 file changed, 28 insertions(+)
>>
>> @@ -571,6 +580,25 @@ wlan_en_state: wlan-en-state {
>>  	};
>>  };
>>  
>> +&uart2 {
>> +	status = "okay";
>> +
>> +	bluetooth: bluetooth {
>> +		compatible = "qcom,wcn6855-bt";
>> +		firmware-name = "QCA6698/hpnv21", "QCA6698/hpbtfw21.tlv";
> 
> The reason for these firmware-names should be added to the commit
> message.
> 

Since the platform uses the QCA6698 Bluetooth chip. While the QCA6698 
shares the same IP core as the WCN6855, it has different RF components
and RAM sizes, requiring new firmware files. Use the firmware-name property
to specify the NVM and rampatch firmware to load.
Will add this to commit message.

>> +		max-speed = <3200000>;
>> +
>> +		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
>> +		vddaon-supply = <&vreg_pmu_aon_0p59>;
>> +		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
>> +		vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
>> +		vddbtcmx-supply = <&vreg_pmu_btcmx_0p85>;
>> +		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
>> +		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
>> +		vddrfa1p8-supply = <&vreg_pmu_rfa_1p7>;
>> +	};
>> +};
>> +
>>  &uart7 {
>>  	status = "okay";
>>  };
>> -- 
>> 2.25.1
>>
> 

-- 
Best Regards,
Wei Deng