linux-kernel - [PATCH v14 2/9] dt-bindings: opp: v2-qcom-level: Document CPR3 open/closed loop volt adjustment

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Message-Id: <20230217-topic-cpr3h-v14-2-9fd23241493d@linaro.org>
Date:   Mon, 28 Aug 2023 13:42:14 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>,
        Niklas Cassel <nks@...wful.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Robert Marko <robimarko@...il.com>, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-pm@...r.kernel.org, Jeffrey Hugo <quic_jhugo@...cinc.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v14 2/9] dt-bindings: opp: v2-qcom-level: Document CPR3
 open/closed loop volt adjustment

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@...labora.com>
Tested-by: Jeffrey Hugo <quic_jhugo@...cinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.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
+        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

-- 
2.42.0