[v13,03/10] dt-bindings: opp: v2-qcom-level: Document CPR3 open/closed loop volt adjustment

Message ID 20230217-topic-cpr3h-v13-3-d01cff1c54cf@linaro.org
State New
Headers
Series Add support for Core Power Reduction v3, v4 and Hardened |

Commit Message

Konrad Dybcio Aug. 2, 2023, 12:37 p.m. UTC
  CPR3 and newer can be fed per-OPP voltage adjustment values for both
open- and closed-loop paths to make better decisions about settling
on the final voltage offset target. Document these properties.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 .../devicetree/bindings/opp/opp-v2-qcom-level.yaml         | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
  

Comments

Krzysztof Kozlowski Aug. 8, 2023, 4:17 p.m. UTC | #1
On 02/08/2023 14:37, Konrad Dybcio wrote:
> CPR3 and newer can be fed per-OPP voltage adjustment values for both
> open- and closed-loop paths to make better decisions about settling
> on the final voltage offset target. Document these properties.
> 
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> Tested-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  .../devicetree/bindings/opp/opp-v2-qcom-level.yaml         | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml b/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
> index a30ef93213c0..b203ea01b17a 100644
> --- a/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
> +++ b/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
> @@ -34,6 +34,20 @@ patternProperties:
>          minItems: 1
>          maxItems: 2
>  
> +      qcom,opp-cloop-vadj:
> +        description: |
> +          An array of per-thread values representing the closed-loop
> +          voltage adjustment value associated with this OPP node.
> +        $ref: /schemas/types.yaml#/definitions/int32-array

I assume negative values are accepted on purpose.

Adding these to example would be useful. Anyway:

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

Best regards,
Krzysztof
  

Patch

diff --git a/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml b/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
index a30ef93213c0..b203ea01b17a 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
@@ -34,6 +34,20 @@  patternProperties:
         minItems: 1
         maxItems: 2
 
+      qcom,opp-cloop-vadj:
+        description: |
+          An array of per-thread values representing the closed-loop
+          voltage adjustment value associated with this OPP node.
+        $ref: /schemas/types.yaml#/definitions/int32-array
+        maxItems: 2
+
+      qcom,opp-oloop-vadj:
+        description: |
+          An array of per-thread values representing the open-loop
+          voltage adjustment value associated with this OPP node.
+        $ref: /schemas/types.yaml#/definitions/int32-array
+        maxItems: 2
+
     required:
       - opp-level
       - qcom,opp-fuse-level