[PATCH v3 2/6] dt-bindings: display/msm: Add reg bus and rotator interconnects

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From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Apart from the already handled data bus (MAS_MDP_Pn<->DDR), there are
other connection paths:
- a path that connects rotator block to the DDR.
- a path that needs to be handled to ensure MDSS register access
  functions properly, namely the "reg bus", a.k.a the CPU-MDSS CFG

Describe these paths bindings to allow using them in device trees and in
the driver

Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
 Documentation/devicetree/bindings/display/msm/mdss-common.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
index f69196e4cc76..6b4ce08a60dc 100644
--- a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
+++ b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml
@@ -66,12 +66,14 @@ properties:
       - description: Interconnect path from mdp0 (or a single mdp) port to the data bus
       - description: Interconnect path from mdp1 port to the data bus
+      - description: Interconnect path from CPU to the reg bus
     minItems: 1
       - const: mdp0-mem
       - const: mdp1-mem
+      - const: cpu-cfg

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