linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sdm845-sony-xperia-tama: Add bluetooth

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Message-ID: <b2as6rclyqawtwuhyp3zv42f2zvbgzsbpamr2znpok6fvrqz3z@i35o5vhbm5g3>
Date: Wed, 21 Jan 2026 01:01:53 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: petr.hodina@...tonmail.com, 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>, David Heidelberg <david@...t.cz>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sdm845-sony-xperia-tama: Add
 bluetooth

On Tue, Jan 20, 2026 at 11:22:51AM +0100, Konrad Dybcio wrote:
> On 1/19/26 12:58 PM, Petr Hodina via B4 Relay wrote:
> > From: Petr Hodina <petr.hodina@...tonmail.com>
> > 
> > Enable the bluetooth interface on the uart6
> > 
> > Signed-off-by: Petr Hodina <petr.hodina@...tonmail.com>
> > ---
> >  arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi | 17 +++++++++++++++++
> >  1 file changed, 17 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi
> > index 68841e036c20..f23f9757a08b 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi
> > @@ -755,6 +755,23 @@ int-pins {
> >  
> >  &uart6 {
> >  	status = "okay";
> > +
> > +	bluetooth {
> > +		compatible = "qcom,wcn3990-bt";
> > +
> > +		/*
> > +		 * This path is relative to the qca/
> > +		 * subdir under lib/firmware.
> > +		 */
> > +		firmware-name = "akatsuki/crnv21.bin";
> 
> 'akatsuki' is the codename of the Xperia XZ3 specifically, whereas
> you declare this in the common file.
> 
> If they all should/can use the same binary, let's rename the path and
> if they have to be separate, let's declare that
> 
> You can probably grab the firmware images for all three (four actually
> but I don't know if anyone has the XZ2P) devices, dump it from the
> bluetooth/vendor/firmware partition (can't recall where specifically)
> and diff the files

I think it's usually bluetooth_<ab>. Corresponding image name is
BTFM.bin (if you have binary images).

-- 
With best wishes
Dmitry