Re: [PATCH 1/2] dt-bindings: remoteproc: mediatek: Fix optional reg-names for mtk,scp

Krzysztof Kozlowski
2022-05-03T12:20:14Z

On 29/04/2022 23:11, Nícolas F. R. A. Prado wrote:
> The SCP has three memory regions: sram, l1tcm and cfg. Only sram is
> required, the other two are optional. Fix the dt-binding so that the
> optional regions can be omitted and passed in any order.

No, cannot be passed in any order.

>
> Also add the missing minItems to the reg property and update the
> description.
>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
>
> ---
>
> .../devicetree/bindings/remoteproc/mtk,scp.yaml | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
> index 823a236242de..ec9ddeb6ca2c 100644
> --- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
> @@ -24,14 +24,20 @@ properties:
> reg:
> description:
> Should contain the address ranges for memory regions SRAM, CFG, and
> - L1TCM.
> + L1TCM. Only SRAM is required, while CFG and L1TCM are optional.
> + minItems: 1
> maxItems: 3
>
> reg-names:
> + minItems: 1
> items:
> - const: sram
> - - const: cfg
> - - const: l1tcm
> + - enum:
> + - l1tcm
> + - cfg
> + - enum:
> + - l1tcm
> + - cfg

This allows them in any combination which is not what we want. If both
are optional and both can appear, then last should be a const:l1tcm.

Best regards,
Krzysztof