Re: [PATCH v10 3/6] media: dt-bindings: Add Amlogic V4L2 video decoder

[Zhentao Guo <zhentao.guo@amlogic.com>]

Hi Krzysztof,

> On Thu, Sep 24, 2026 at 03:55:10PM +0800, Zhentao Guo wrote:
>> Add bindings for Amlogic hardware decoder accelerator.
>>
>> Signed-off-by: Zhentao Guo <zhentao.guo@amlogic.com>
>> ---
>>   .../devicetree/bindings/media/amlogic,s4-vdec.yaml | 114 +++++++++++++++++++++
>>   1 file changed, 114 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml b/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml
>> new file mode 100644
>> index 000000000000..751043c3d9cc
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml
>> @@ -0,0 +1,114 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +# Copyright (C) 2025 Amlogic, Inc. All rights reserved
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/media/amlogic,s4-vdec.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Amlogic Video Decode Accelerator
>> +
>> +maintainers:
>> +  - Zhentao Guo <zhentao.guo@amlogic.com>
>> +
>> +description:
>> +  The Video Decoder Accelerator present on Amlogic SOCs.
>> +  It supports stateless h264 decoding.
>> +
>> +properties:
>> +  compatible:
>> +    const: amlogic,s4-vdec
>> +
>> +  reg:
>> +    minItems: 2
> What is happening here? Previous version was different.

maxItems: 2 implies that a single items is also allowed,but the hardware actually requires at least two register regions (dos 
and dmc) to work, so minItems:2 makes sense here.

The same applies to |power-domain| and |interrupts| below. At least 2 
power-domains to make the hardware work, and at least 2 interrupts 
needed for the two sub-cores.

>
> Best regards,
> Krzysztof

Best regards,

Zhentao


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