linux-kernel - [PATCH 02/53] dt-bindings: interconnect: qcom,bcm-voter: Add qcom,bcm-voter-idx

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Message-Id: <20230708-topic-rpmh_icc_rsc-v1-2-b223bd2ac8dd@linaro.org>
Date:   Tue, 11 Jul 2023 14:18:01 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Georgi Djakov <djakov@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        cros-qcom-dts-watchers@...omium.org
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 02/53] dt-bindings: interconnect: qcom,bcm-voter: Add
 qcom,bcm-voter-idx

In order to (at least partially) untangle the global BCM voter lookup
(as again, they are shared throughout the entire system and not bound to
individual buses/providers), introduce a new required property to assign
a unique identifier to each BCM voter.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 .../devicetree/bindings/interconnect/qcom,bcm-voter.yaml       | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml b/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml
index eec987640b37..09321c1918bf 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml
@@ -38,8 +38,14 @@ properties:
 
     $ref: /schemas/types.yaml#/definitions/uint32
 
+  qcom,bcm-voter-idx:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description:
+      A globally unique predefined discrimnator, identifying each BCM voter.
+
 required:
   - compatible
+  - qcom,bcm-voter-idx
 
 additionalProperties: false
 
@@ -48,8 +54,11 @@ examples:
   # as defined in Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
   - |
 
+    #include <dt-bindings/interconnect/qcom,icc.h>
+
     apps_bcm_voter: bcm-voter {
         compatible = "qcom,bcm-voter";
+        qcom,bcm-voter-idx = <ICC_BCM_VOTER_APPS>;
     };
 
   # Example 2: disp bcm_voter on SDM845 should be defined inside &disp_rsc node
@@ -61,5 +70,6 @@ examples:
     disp_bcm_voter: bcm-voter {
         compatible = "qcom,bcm-voter";
         qcom,tcs-wait = <QCOM_ICC_TAG_AMC>;
+        qcom,bcm-voter-idx = <ICC_BCM_VOTER_DISP>;
     };
 ...

-- 
2.41.0