linux-kernel - [PATCH v2 2/5] dt-bindings: arm: msm: Add bindings for multi channel DDR in LLCC

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Date:   Mon, 13 Mar 2023 18:10:37 +0530
From:   Komal Bajaj <quic_kbajaj@...cinc.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Abel Vesa <abel.vesa@...aro.org>,
        Rishabh Bhatnagar <rishabhb@...eaurora.org>,
        Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>
Cc:     Komal Bajaj <quic_kbajaj@...cinc.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH v2 2/5] dt-bindings: arm: msm: Add bindings for multi channel DDR in LLCC

Add description for additional nodes needed to support
mulitple channel DDR configurations in LLCC.

Signed-off-by: Komal Bajaj <quic_kbajaj@...cinc.com>
---
 Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
index 38efcad56dbd..9a4a76caf490 100644
--- a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
@@ -37,15 +37,24 @@ properties:
     items:
       - description: LLCC base register region
       - description: LLCC broadcast base register region
+      - description: Feature register to decide which LLCC configuration
+                     to use, this is optional
 
   reg-names:
     items:
       - const: llcc_base
       - const: llcc_broadcast_base
+      - const: multi_channel_register
 
   interrupts:
     maxItems: 1
 
+  multi-ch-bit-off:
+    items:
+      - description: Specifies the offset in bits into the multi_channel_register
+                     and the number of bits used to decide which LLCC configuration
+                     to use
+
 required:
   - compatible
   - reg
-- 
2.39.1