Re: [PATCH v2 2/4] dt-bindings: display: tegra: Add channel/syncpoint range properties

[Krzysztof Kozlowski]

On Thu, Jul 02, 2026 at 01:10:27PM +0900, Mikko Perttunen wrote:
> All of the resources implemented by Host1x hardware may not be available
> to the software in cases where those resources are assigned to other vm
> partitions through the hypervisor register region.
> 
> Add properties nvidia,channels and nvidia,syncpoints to specify the
> range of resources that are accessible by this partition / virtual
> machine.
> 
> The hypervisor or bootloader that configures the partitioning in the
> hypervisor register region is responsible for updating the values of
> these properties in accordance to the configuration.
> 
> Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
> ---
>  .../bindings/display/tegra/nvidia,tegra20-host1x.yaml        | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
> index ffd0ed857d28..a6bef28e8559 100644
> --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
> +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
> @@ -96,6 +96,18 @@ properties:
>      items:
>        - description: phandle to the HEG or core power domain
>  
> +  nvidia,channels:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    minItems: 2
> +    maxItems: 2
> +    description: Describes range of usable Host1x channels as a <base count> tuple.

Pasting my reply just now from v1:

Property has only one meaning in DT schema, so basically you are now
fixing nvidia,channels to uint32-array for all possible use cases and
nvidia devices. Well, you have been warned.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>

Best regards,
Krzysztof