[PATCH v3 09/13] ASoC: dt-bindings: tegra: Add schema for audio graph card

[Sameer Pujar]

>> Add YAML schema for Tegra audio graph sound card DT bindings. It uses the
>> same DT bindings provided by generic audio graph driver. Along with this
>> few standard clock DT bindings are added which are specifically required
>> for Tegra audio.
>>
>> Signed-off-by: Sameer Pujar <spujar at nvidia.com>
>> ---
>>   .../sound/nvidia,tegra-audio-graph-card.yaml       | 70 ++++++++++++++++++++++
>>   1 file changed, 70 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml
>> new file mode 100644
>> index 0000000..b73fbe5
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml
>> @@ -0,0 +1,70 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/sound/nvidia,tegra-audio-graph-card.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Audio Graph based Tegra sound card driver
>> +
>> +description: |
>> +  This is based on generic audio graph card driver along with additional
>> +  customizations for Tegra platforms. It uses the same bindings with
>> +  additional standard clock DT bindings required for Tegra.
>> +
>> +  See{LINUX}/Documentation/devicetree/bindings/sound/audio-graph-card.txt
>> +
>> +maintainers:
>> +  - Jon Hunter <jonathanh at nvidia.com>
>> +  - Sameer Pujar <spujar at nvidia.com>
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
>> +      - const: nvidia,tegra210-audio-graph-card
>> +      - const: nvidia,tegra186-audio-graph-card
>> +
>> +  clocks:
>> +   minItems: 2
>> +
>> +  clock-names:
>> +   minItems: 2
>> +   items:
>> +     - const: pll_a
>> +     - const: plla_out0
>> +
>> +  assigned-clocks:
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +  assigned-clock-parents:
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +  assigned-clock-rates:
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +required:
>> +  - compatible
>> +  - clocks
>> +  - clock-names
>> +  - assigned-clocks
>> +  - assigned-clock-parents
> Where's the graph? You need to define the ports and reference the common
> schema.

I am looking to reference the bindings used in below doc which is not 
yet in YAML format. Only additional properties I listed here.
{LINUX}/Documentation/devicetree/bindings/sound/audio-graph-card.txt

Should I keep this doc to *.txt format as well and later move to YAML or 
is there a way to reference *.txt doc here?