diff mbox series

[v6,23/33] ASoC: dt-bindings: Add Q6USB backend

Message ID 20230916001026.315-24-quic_wcheng@quicinc.com
State Superseded
Headers show
Series Introduce QC USB SND audio offloading support | expand

Commit Message

Wesley Cheng Sept. 16, 2023, 12:10 a.m. UTC
Add a dt-binding to describe the definition of enabling the Q6 USB backend
device for audio offloading.  The node carries information, which is passed
along to the QC USB SND class driver counterpart.  These parameters will be
utilized during QMI stream enable requests.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 .../devicetree/bindings/sound/qcom,q6usb.yaml | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6usb.yaml

Comments

Konrad Dybcio Sept. 16, 2023, 12:37 a.m. UTC | #1
On 16.09.2023 02:10, Wesley Cheng wrote:
> Add a dt-binding to describe the definition of enabling the Q6 USB backend
> device for audio offloading.  The node carries information, which is passed
> along to the QC USB SND class driver counterpart.  These parameters will be
> utilized during QMI stream enable requests.
> 
> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
> ---
>  .../devicetree/bindings/sound/qcom,q6usb.yaml | 55 +++++++++++++++++++
>  1 file changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
> new file mode 100644
> index 000000000000..51ff0b1ffa2d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm ASoC DPCM USB backend DAI
> +
> +maintainers:
> +  - Wesley Cheng <quic_wcheng@quicinc.com>
> +
> +description:
> +  The USB port is a supported AFE path on the Q6 DSP.  This ASoC DPCM
> +  backend DAI will communicate the required settings to initialize the
> +  XHCI host controller properly for enabling the offloaded audio stream.
> +  Parameters defined under this node will carry settings, which will be
> +  passed along during the QMI stream enable request and configuration of
> +  the XHCI host controller.
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,q6usb
> +
> +  iommus:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 1
> +
> +  qcom,usb-audio-intr-num:
> +    description:
> +      Desired XHCI interrupter number to use.  Depending on the audio DSP
> +      on the platform, it will operate on a specific XHCI interrupter.
So is this the number of interrupters to be used or the index of
a single interrupter? If the latter, then "num" is definitely way
too ambiguous.

Konrad
Wesley Cheng Sept. 16, 2023, 12:46 a.m. UTC | #2
Hi Konrad,

On 9/15/2023 5:37 PM, Konrad Dybcio wrote:
> On 16.09.2023 02:10, Wesley Cheng wrote:
>> Add a dt-binding to describe the definition of enabling the Q6 USB backend
>> device for audio offloading.  The node carries information, which is passed
>> along to the QC USB SND class driver counterpart.  These parameters will be
>> utilized during QMI stream enable requests.
>>
>> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
>> ---
>>   .../devicetree/bindings/sound/qcom,q6usb.yaml | 55 +++++++++++++++++++
>>   1 file changed, 55 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
>> new file mode 100644
>> index 000000000000..51ff0b1ffa2d
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
>> @@ -0,0 +1,55 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm ASoC DPCM USB backend DAI
>> +
>> +maintainers:
>> +  - Wesley Cheng <quic_wcheng@quicinc.com>
>> +
>> +description:
>> +  The USB port is a supported AFE path on the Q6 DSP.  This ASoC DPCM
>> +  backend DAI will communicate the required settings to initialize the
>> +  XHCI host controller properly for enabling the offloaded audio stream.
>> +  Parameters defined under this node will carry settings, which will be
>> +  passed along during the QMI stream enable request and configuration of
>> +  the XHCI host controller.
>> +
>> +allOf:
>> +  - $ref: dai-common.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - qcom,q6usb
>> +
>> +  iommus:
>> +    maxItems: 1
>> +
>> +  "#sound-dai-cells":
>> +    const: 1
>> +
>> +  qcom,usb-audio-intr-num:
>> +    description:
>> +      Desired XHCI interrupter number to use.  Depending on the audio DSP
>> +      on the platform, it will operate on a specific XHCI interrupter.
> So is this the number of interrupters to be used or the index of
> a single interrupter? If the latter, then "num" is definitely way
> too ambiguous.
> 

It defines the index of a single interrupter.  I'll change the naming of 
this property.

Thanks
Wesley Cheng
Rob Herring Sept. 16, 2023, 2:36 a.m. UTC | #3
On Fri, 15 Sep 2023 17:10:16 -0700, Wesley Cheng wrote:
> Add a dt-binding to describe the definition of enabling the Q6 USB backend
> device for audio offloading.  The node carries information, which is passed
> along to the QC USB SND class driver counterpart.  These parameters will be
> utilized during QMI stream enable requests.
> 
> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
> ---
>  .../devicetree/bindings/sound/qcom,q6usb.yaml | 55 +++++++++++++++++++
>  1 file changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml: $id: Cannot determine base path from $id, relative path/filename doesn't match actual path or filename
 	 $id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml
 	file: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/sound/qcom,q6usb.example.dtb: dais: qcom,usb-audio-intr-num:0: [0, 2] is too long
	from schema $id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/sound/qcom,q6usb.example.dtb: dais: qcom,usb-audio-intr-num:0: [0, 2] is too long
	from schema $id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230916001026.315-24-quic_wcheng@quicinc.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
new file mode 100644
index 000000000000..51ff0b1ffa2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
@@ -0,0 +1,55 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm ASoC DPCM USB backend DAI
+
+maintainers:
+  - Wesley Cheng <quic_wcheng@quicinc.com>
+
+description:
+  The USB port is a supported AFE path on the Q6 DSP.  This ASoC DPCM
+  backend DAI will communicate the required settings to initialize the
+  XHCI host controller properly for enabling the offloaded audio stream.
+  Parameters defined under this node will carry settings, which will be
+  passed along during the QMI stream enable request and configuration of
+  the XHCI host controller.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - qcom,q6usb
+
+  iommus:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 1
+
+  qcom,usb-audio-intr-num:
+    description:
+      Desired XHCI interrupter number to use.  Depending on the audio DSP
+      on the platform, it will operate on a specific XHCI interrupter.
+    $ref: /schemas/types.yaml#/definitions/uint16
+    maximum: 8
+
+required:
+  - compatible
+  - "#sound-dai-cells"
+  - qcom,usb-audio-intr-num
+
+additionalProperties: false
+
+examples:
+  - |
+    dais {
+      compatible = "qcom,q6usb";
+      #sound-dai-cells = <1>;
+      iommus = <&apps_smmu 0x180f 0x0>;
+      qcom,usb-audio-intr-num = <2>;
+    };