Re: [PATCH v3 1/4] dt-bindings: qcom,qcs615-venus: add support for video hardware

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On Mon, Nov 25, 2024 at 11:04:49AM +0530, Renjiang Han wrote:
> Add support for Qualcomm video acceleration hardware used for video
> stream decoding and encoding on QCOM QCS615.
> 
> Signed-off-by: Renjiang Han <quic_renjiang@xxxxxxxxxxx>
> ---
>  .../bindings/media/qcom,qcs615-venus.yaml          | 182 +++++++++++++++++++++
>  1 file changed, 182 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,qcs615-venus.yaml b/Documentation/devicetree/bindings/media/qcom,qcs615-venus.yaml

Dependency for this patch must be mentioned here.

Amount of dependencies make it unmergeable and untesteable. I suggest
decoupling dependencies by removing clock constants.


> new file mode 100644
> index 0000000000000000000000000000000000000000..7a3a01ff06d8b62bc2424a0a24857c86c6865f89
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/qcom,qcs615-venus.yaml
> @@ -0,0 +1,182 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/qcom,qcs615-venus.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm QCS615 Venus video encode and decode accelerators
> +
> +maintainers:
> +  - Stanimir Varbanov <stanimir.k.varbanov@xxxxxxxxx>
> +  - Vikash Garodia <quic_vgarodia@xxxxxxxxxxx>
> +
> +description:
> +  The Venus IP is a video encode and decode accelerator present
> +  on Qualcomm platforms
> +
> +allOf:
> +  - $ref: qcom,venus-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: qcom,qcs615-venus
> +
> +  power-domains:
> +    minItems: 2
> +    maxItems: 3
> +
> +  power-domain-names:
> +    minItems: 2
> +    items:
> +      - const: venus
> +      - const: vcodec0
> +      - const: cx
> +
> +  clocks:
> +    maxItems: 5
> +
> +  clock-names:
> +    items:
> +      - const: core
> +      - const: iface
> +      - const: bus
> +      - const: vcodec0_core
> +      - const: vcodec0_bus
> +
> +  iommus:
> +    maxItems: 1
> +
> +  memory-region:
> +    maxItems: 1
> +
> +  interconnects:
> +    maxItems: 2
> +
> +  interconnect-names:
> +    items:
> +      - const: video-mem
> +      - const: cpu-cfg
> +
> +  operating-points-v2: true
> +
> +  opp-table:
> +    type: object
> +
> +  video-decoder:
> +    type: object
> +
> +    additionalProperties: false
> +
> +    properties:
> +      compatible:
> +        const: venus-decoder
> +
> +    required:
> +      - compatible
> +
> +  video-encoder:
> +    type: object

Both nodes are useless - no resources here, nothing to control. Do not
add nodes just to instantiate Linux drivers. Drop them.

Best regards,
Krzysztof





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