[PATCH 0/2] Enable uart and bluetooth for Xperia devices

[PATCH 0/2] Enable uart and bluetooth for Xperia devices

[Petr Hodina via B4 Relay]

This fixes the uart instances defined in the dts so the serial
console will now work if uart is attached to Rx pin on the uSD pinout.
Also now enables bluetooth.

Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
---
Petr Hodina (2):
      arm64: dts: qcom: sdm845-sony-xperia-tama: Correct uart instances
      arm64: dts: qcom: sdm845-sony-xperia-tama: Add bluetooth

 .../boot/dts/qcom/sdm845-sony-xperia-tama.dtsi      | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)
---
base-commit: f417b7ffcbef7d76b0d8860518f50dae0e7e5eda
change-id: 20251217-akatsuki-uart-4d7057864ba7

Best regards,
-- 
Petr Hodina <petr.hodina@protonmail.com>

[PATCH 1/2] arm64: dts: qcom: sdm845-sony-xperia-tama: Correct uart instances

[Petr Hodina via B4 Relay]

From: Petr Hodina <petr.hodina@protonmail.com>

Change the uart instances:
- uart6 is for bluetooth
- uart9 is for serial console (available on the uSD pinout)

Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
---
 arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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 7dc9349eedfd..68841e036c20 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi
@@ -17,8 +17,8 @@ / {
 	qcom,board-id = <8 0>;
 
 	aliases {
-		serial0 = &uart6;
-		serial1 = &uart9;
+		serial0 = &uart9;
+		serial1 = &uart6;
 	};
 
 	chosen {

-- 
2.52.0

Re: [PATCH 1/2] arm64: dts: qcom: sdm845-sony-xperia-tama: Correct uart instances

[David Heidelberg]

On 19/01/2026 12:58, Petr Hodina via B4 Relay wrote:
> From: Petr Hodina <petr.hodina@protonmail.com>
> 
> Change the uart instances:
> - uart6 is for bluetooth
> - uart9 is for serial console (available on the uSD pinout)
> 
> Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
> ---
>   arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 

Thank you!

Reviewed-by: David Heidelberg <david@ixit.cz>

Re: [PATCH 1/2] arm64: dts: qcom: sdm845-sony-xperia-tama: Correct uart instances

[Konrad Dybcio]

On 1/19/26 12:58 PM, Petr Hodina via B4 Relay wrote:
> From: Petr Hodina <petr.hodina@protonmail.com>
> 
> Change the uart instances:
> - uart6 is for bluetooth
> - uart9 is for serial console (available on the uSD pinout)
> 
> Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
> ---

It would make sense to add a note why this is a useful change (i.e.
most OSes would probably assume serial0 is the console UART and
sending that to the bluetooth chip is no good)

With that

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

Konrad

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

[Petr Hodina via B4 Relay]

From: Petr Hodina <petr.hodina@protonmail.com>

Enable the bluetooth interface on the uart6

Signed-off-by: Petr Hodina <petr.hodina@protonmail.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";
+
+		vddio-supply = <&vreg_s3a_1p3>;
+		vddxo-supply = <&vreg_s5a_1p9>;
+		vddrf-supply = <&vreg_l17a_1p3>;
+		vddch0-supply = <&vreg_l25a_3p0>;
+
+		max-speed = <3200000>;
+	};
 };
 
 &uart9 {

-- 
2.52.0

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

[Dmitry Baryshkov]

On Mon, Jan 19, 2026 at 12:58:53PM +0100, Petr Hodina via B4 Relay wrote:
> From: Petr Hodina <petr.hodina@protonmail.com>
> 
> Enable the bluetooth interface on the uart6
> 
> Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
> ---
>  arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

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

[David Heidelberg]

On 19/01/2026 12:58, Petr Hodina via B4 Relay wrote:
> From: Petr Hodina <petr.hodina@protonmail.com>
> 
> Enable the bluetooth interface on the uart6
> 
> Signed-off-by: Petr Hodina <petr.hodina@protonmail.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";

Looks good, thou the path should follow `$Vendor/$codename` pattern.

In general, if it's generic firmware, fw path here should be

Sony/tama/

otherwise LGTM.

David

> +
> +		vddio-supply = <&vreg_s3a_1p3>;
> +		vddxo-supply = <&vreg_s5a_1p9>;
> +		vddrf-supply = <&vreg_l17a_1p3>;
> +		vddch0-supply = <&vreg_l25a_3p0>;
> +
> +		max-speed = <3200000>;
> +	};
>   };
>   
>   &uart9 {
> 

-- 
David Heidelberg

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

[Konrad Dybcio]

On 1/19/26 12:58 PM, Petr Hodina via B4 Relay wrote:
> From: Petr Hodina <petr.hodina@protonmail.com>
> 
> Enable the bluetooth interface on the uart6
> 
> Signed-off-by: Petr Hodina <petr.hodina@protonmail.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

Konrad

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

[Dmitry Baryshkov]

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@protonmail.com>
> > 
> > Enable the bluetooth interface on the uart6
> > 
> > Signed-off-by: Petr Hodina <petr.hodina@protonmail.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