Re: [PATCH 1/7] dt-bindings: arm: coresight-tmc: Add "memory-region" property

From: Krzysztof Kozlowski
Date: Sat Sep 30 2023 - 11:29:26 EST


On 29/09/2023 15:37, Linu Cherian wrote:
> memory-region 0: Reserved trace buffer memory
>
> TMC ETR: When available, use this reserved memory region for
> trace data capture. Same region is used for trace data
> retention after a panic or watchdog reset.
>
> TMC ETF: When available, use this reserved memory region for
> trace data retention synced from internal SRAM after a panic or
> watchdog reset.
>
> memory-region 1: Reserved meta data memory
>
> TMC ETR, ETF: When available, use this memory for register
> snapshot retention synced from hardware registers after a panic
> or watchdog reset.
>
> Signed-off-by: Linu Cherian <lcherian@xxxxxxxxxxx>
> ---

Where is the changelog? This is supposed to be v4 or something later.
Please, keep proper versioning and changelog.

> .../bindings/arm/arm,coresight-tmc.yaml | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
> index cb8dceaca70e..45ca4d02d73e 100644
> --- a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
> +++ b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
> @@ -101,6 +101,22 @@ properties:
> and ETF configurations.
> $ref: /schemas/graph.yaml#/properties/port
>
> + memory-region:
> + items:
> + - description: Reserved trace buffer memory for ETR and ETF sinks.
> + For ETR, this reserved memory region is used for trace data capture.
> + Same region is used for trace data retention as well after a panic
> + or watchdog reset.
> + For ETF, this reserved memory region is used for retention of trace
> + data synced from internal SRAM after a panic or watchdog reset.
> +
> + - description: Reserved meta data memory. Used for ETR and ETF sinks.
> +
> + memory-region-names:
> + items:
> + - const: trace-mem
> + - const: metadata-mem

Drop the 'mem' suffixes.


Best regards,
Krzysztof