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

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@linaro.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