linux-kernel - [PATCH 1/8] dt-bindings: soc: qcom,rpmh-rsc: Require power-domains

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Message-Id: <20230531-topic-rsc-v1-1-b4a985f57b8b@linaro.org>
Date:   Wed, 31 May 2023 15:22:35 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Melody Olvera <quic_molvera@...cinc.com>,
        Vinod Koul <vkoul@...nel.org>,
        Richard Acayan <mailingradian@...il.com>,
        Lina Iyer <ilina@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Abel Vesa <abel.vesa@...aro.org>,
        Sai Prakash Ranjan <quic_saipraka@...cinc.com>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Luca Weiss <luca.weiss@...rphone.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Andy Gross <andy.gross@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 1/8] dt-bindings: soc: qcom,rpmh-rsc: Require power-domains

The Linux RPMh implementation refrains from sending some RPMh votes until
the system is about to enter suspend (which is indicated by all CPU cores
entering a low-power state). Lack of the power-domains property will make
it such that these votes are never sent.

Require the power-domains property as discussed in [1].

[1] https://lore.kernel.org/linux-arm-msm/20230512150425.3171122-1-quic_bjorande@quicinc.com/
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
index a4046ba60846..af632d0e0355 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
@@ -124,6 +124,7 @@ required:
   - qcom,tcs-offset
   - reg
   - reg-names
+  - power-domains
 
 additionalProperties: false
 
@@ -179,6 +180,7 @@ examples:
                           <SLEEP_TCS   1>,
                           <WAKE_TCS    1>,
                           <CONTROL_TCS 0>;
+        power-domains = <&CLUSTER_PD>;
     };
 
   - |

-- 
2.40.1