[PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Yepuri Siddu]

Document the YAML binding schema for the Qualcomm QCC2072 UART-based
Bluetooth controller.

Unlike other Qualcomm Bluetooth chips, QCC2072 requires no external
voltage regulators. The schema inherits common Qualcomm Bluetooth
properties via qcom,bluetooth-common.yaml and serial peripheral
interface properties for the UART link.

Signed-off-by: Yepuri Siddu <yepuri.siddu@oss.qualcomm.com>
---
 .../net/bluetooth/qcom,qcc2072-bt.yaml        | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml

diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
new file mode 100644
index 000000000000..8e2f15a75d62
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/qcom,qcc2072-bt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QCC2072 Bluetooth
+
+maintainers:
+  - Balakrishna Godavarthi <quic_bgodavar@quicinc.com>
+  - Rocky Liao <quic_rjliao@quicinc.com>
+
+description:
+  Qualcomm QCC2072 is a UART-based Bluetooth controller.
+
+properties:
+  compatible:
+    enum:
+      - qcom,qcc2072-bt
+
+required:
+  - compatible
+
+allOf:
+  - $ref: bluetooth-controller.yaml#
+  - $ref: qcom,bluetooth-common.yaml#
+  - $ref: /schemas/serial/serial-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    serial {
+        bluetooth {
+            compatible = "qcom,qcc2072-bt";
+            max-speed = <3200000>;
+        };
+    };
-- 
2.34.1

Re: [PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Krzysztof Kozlowski]

On Fri, May 29, 2026 at 11:23:42PM +0530, Yepuri Siddu wrote:
> Document the YAML binding schema for the Qualcomm QCC2072 UART-based
> Bluetooth controller.

Where is the rest?

Also:
A nit, subject: drop second/last, redundant "bindings for". The
"dt-bindings" prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.17-rc3/source/Documentation/devicetree/bindings/submitting-patches.rst#L18

> 
> Unlike other Qualcomm Bluetooth chips, QCC2072 requires no external
> voltage regulators. The schema inherits common Qualcomm Bluetooth
> properties via qcom,bluetooth-common.yaml and serial peripheral
> interface properties for the UART link.
> 
> Signed-off-by: Yepuri Siddu <yepuri.siddu@oss.qualcomm.com>
> ---
>  .../net/bluetooth/qcom,qcc2072-bt.yaml        | 38 +++++++++++++++++++
>  1 file changed, 38 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
> new file mode 100644
> index 000000000000..8e2f15a75d62
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
> @@ -0,0 +1,38 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/bluetooth/qcom,qcc2072-bt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm QCC2072 Bluetooth
> +
> +maintainers:
> +  - Balakrishna Godavarthi <quic_bgodavar@quicinc.com>
> +  - Rocky Liao <quic_rjliao@quicinc.com>
> +
> +description:
> +  Qualcomm QCC2072 is a UART-based Bluetooth controller.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,qcc2072-bt
> +
> +required:
> +  - compatible
> +

Looks heavily incomplete. Devices do not work without power for example.

> +allOf:
> +  - $ref: bluetooth-controller.yaml#
> +  - $ref: qcom,bluetooth-common.yaml#
> +  - $ref: /schemas/serial/serial-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    serial {
> +        bluetooth {
> +            compatible = "qcom,qcc2072-bt";
> +            max-speed = <3200000>;

Also incomplete.

Best regards,
Krzysztof

Re: [PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Yepuri Siddu]

On 5/30/2026 6:04 PM, Krzysztof Kozlowski wrote:
> On Fri, May 29, 2026 at 11:23:42PM +0530, Yepuri Siddu wrote:
>> Document the YAML binding schema for the Qualcomm QCC2072 UART-based
>> Bluetooth controller.
> 
> Where is the rest?
> 
> Also:
> A nit, subject: drop second/last, redundant "bindings for". The
> "dt-bindings" prefix is already stating that these are bindings.
> See also:
> https://elixir.bootlin.com/linux/v6.17-rc3/source/Documentation/devicetree/bindings/submitting-patches.rst#L18
> 
Thanks,  I will update this accordingly and send a v2 with the fixes.
>>
>> Unlike other Qualcomm Bluetooth chips, QCC2072 requires no external
>> voltage regulators. The schema inherits common Qualcomm Bluetooth
>> properties via qcom,bluetooth-common.yaml and serial peripheral
>> interface properties for the UART link.
>>
>> Signed-off-by: Yepuri Siddu <yepuri.siddu@oss.qualcomm.com>
>> ---
>>   .../net/bluetooth/qcom,qcc2072-bt.yaml        | 38 +++++++++++++++++++
>>   1 file changed, 38 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
>> new file mode 100644
>> index 000000000000..8e2f15a75d62
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
>> @@ -0,0 +1,38 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/net/bluetooth/qcom,qcc2072-bt.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm QCC2072 Bluetooth
>> +
>> +maintainers:
>> +  - Balakrishna Godavarthi <quic_bgodavar@quicinc.com>
>> +  - Rocky Liao <quic_rjliao@quicinc.com>
>> +
>> +description:
>> +  Qualcomm QCC2072 is a UART-based Bluetooth controller.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - qcom,qcc2072-bt
>> +
>> +required:
>> +  - compatible
>> +
> 
> Looks heavily incomplete. Devices do not work without power for example.

The module receives power through the M.2 edge connector and manages its
own power sequencing internally. Unlike bare Qualcomm Bluetooth SoCs, it
requires no external voltage regulators, enable GPIOs, or clock supply
from the host, so no power-related properties are needed in the binding.
> 
>> +allOf:
>> +  - $ref: bluetooth-controller.yaml#
>> +  - $ref: qcom,bluetooth-common.yaml#
>> +  - $ref: /schemas/serial/serial-peripheral-props.yaml#
>> +
>> +unevaluatedProperties: false
>> +
>> +examples:
>> +  - |
>> +    serial {
>> +        bluetooth {
>> +            compatible = "qcom,qcc2072-bt";
>> +            max-speed = <3200000>;
> 
> Also incomplete.
> 
> Best regards,
> Krzysztof
> 

Re: [PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Dmitry Baryshkov]

On Mon, Jun 01, 2026 at 12:50:00PM +0530, Yepuri Siddu wrote:
> 
> 
> On 5/30/2026 6:04 PM, Krzysztof Kozlowski wrote:
> > On Fri, May 29, 2026 at 11:23:42PM +0530, Yepuri Siddu wrote:
> > > Document the YAML binding schema for the Qualcomm QCC2072 UART-based
> > > Bluetooth controller.
> > 
> > Where is the rest?
> > 
> > Also:
> > A nit, subject: drop second/last, redundant "bindings for". The
> > "dt-bindings" prefix is already stating that these are bindings.
> > See also:
> > https://elixir.bootlin.com/linux/v6.17-rc3/source/Documentation/devicetree/bindings/submitting-patches.rst#L18
> > 
> Thanks,  I will update this accordingly and send a v2 with the fixes.
> > > 
> > > Unlike other Qualcomm Bluetooth chips, QCC2072 requires no external
> > > voltage regulators. The schema inherits common Qualcomm Bluetooth
> > > properties via qcom,bluetooth-common.yaml and serial peripheral
> > > interface properties for the UART link.
> > > 
> > > Signed-off-by: Yepuri Siddu <yepuri.siddu@oss.qualcomm.com>
> > > ---
> > >   .../net/bluetooth/qcom,qcc2072-bt.yaml        | 38 +++++++++++++++++++
> > >   1 file changed, 38 insertions(+)
> > >   create mode 100644 Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
> > > 
> > > diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
> > > new file mode 100644
> > > index 000000000000..8e2f15a75d62
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,qcc2072-bt.yaml
> > > @@ -0,0 +1,38 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/net/bluetooth/qcom,qcc2072-bt.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Qualcomm QCC2072 Bluetooth
> > > +
> > > +maintainers:
> > > +  - Balakrishna Godavarthi <quic_bgodavar@quicinc.com>
> > > +  - Rocky Liao <quic_rjliao@quicinc.com>
> > > +
> > > +description:
> > > +  Qualcomm QCC2072 is a UART-based Bluetooth controller.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    enum:
> > > +      - qcom,qcc2072-bt
> > > +
> > > +required:
> > > +  - compatible
> > > +
> > 
> > Looks heavily incomplete. Devices do not work without power for example.
> 
> The module receives power through the M.2 edge connector and manages its
> own power sequencing internally. Unlike bare Qualcomm Bluetooth SoCs, it
> requires no external voltage regulators, enable GPIOs, or clock supply
> from the host, so no power-related properties are needed in the binding.

If this is a purely M.2 device, then it should not be a part of DT.

-- 
With best wishes
Dmitry

Re: [PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Krzysztof Kozlowski]

On 01/06/2026 09:52, Dmitry Baryshkov wrote:
> On Mon, Jun 01, 2026 at 12:50:00PM +0530, Yepuri Siddu wrote:
>>
>>
>> On 5/30/2026 6:04 PM, Krzysztof Kozlowski wrote:
>>> On Fri, May 29, 2026 at 11:23:42PM +0530, Yepuri Siddu wrote:
>>>> Document the YAML binding schema for the Qualcomm QCC2072 UART-based
>>>> Bluetooth controller.
>>>
>>> Where is the rest?
>>>

I repeat the question.


>>>> +properties:
>>>> +  compatible:
>>>> +    enum:
>>>> +      - qcom,qcc2072-bt
>>>> +
>>>> +required:
>>>> +  - compatible
>>>> +
>>>
>>> Looks heavily incomplete. Devices do not work without power for example.
>>
>> The module receives power through the M.2 edge connector and manages its
>> own power sequencing internally. Unlike bare Qualcomm Bluetooth SoCs, it
>> requires no external voltage regulators, enable GPIOs, or clock supply
>> from the host, so no power-related properties are needed in the binding.
> 
> If this is a purely M.2 device, then it should not be a part of DT.
> 

Exactly. And even PCI devices need power sequencing, unless this is a
simple (BT only) device.

Best regards,
Krzysztof

Re: [PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Yepuri Siddu]

On 6/1/2026 1:49 PM, Krzysztof Kozlowski wrote:
> On 01/06/2026 09:52, Dmitry Baryshkov wrote:
>> On Mon, Jun 01, 2026 at 12:50:00PM +0530, Yepuri Siddu wrote:
>>>
>>>
>>> On 5/30/2026 6:04 PM, Krzysztof Kozlowski wrote:
>>>> On Fri, May 29, 2026 at 11:23:42PM +0530, Yepuri Siddu wrote:
>>>>> Document the YAML binding schema for the Qualcomm QCC2072 UART-based
>>>>> Bluetooth controller.
>>>>
>>>> Where is the rest?
>>>>
> 
> I repeat the question.
> 
> 
>>>>> +properties:
>>>>> +  compatible:
>>>>> +    enum:
>>>>> +      - qcom,qcc2072-bt
>>>>> +
>>>>> +required:
>>>>> +  - compatible
>>>>> +
>>>>
>>>> Looks heavily incomplete. Devices do not work without power for example.
>>>
>>> The module receives power through the M.2 edge connector and manages its
>>> own power sequencing internally. Unlike bare Qualcomm Bluetooth SoCs, it
>>> requires no external voltage regulators, enable GPIOs, or clock supply
>>> from the host, so no power-related properties are needed in the binding.
>>
>> If this is a purely M.2 device, then it should not be a part of DT.
>>
> 
> Exactly. And even PCI devices need power sequencing, unless this is a
> simple (BT only) device.
> 

QCC2072 is an M.2 E-key chip. As M.2 Power Sequencing changes are being 
upstreamed, we will reupdate our existing patches to align with M.2 
power sequencing approach.
This includes aligning the bindings, DT and also BT driver changes.

Thanks,
Siddu

> Best regards,
> Krzysztof