dt-bindings: msm/disp: Introduce interconnect bindings for MDSS on SDM845 [Linux 5.3]

This Linux kernel change "dt-bindings: msm/disp: Introduce interconnect bindings for MDSS on SDM845" is included in the Linux 5.3 release. This change is authored by Jayant Shekhar <jshekhar [at] codeaurora.org> on Tue Jun 18 13:24:11 2019 -0700. The commit for this change in Linux stable tree is a67e13e (patch).

dt-bindings: msm/disp: Introduce interconnect bindings for MDSS on SDM845

Add interconnect properties such as interconnect provider specifier
, the edge source and destination ports which are required by the
interconnect API to configure interconnect path for MDSS.

Changes in v2:
    - None

Changes in v3:
    - Remove common property definitions (Rob Herring)

Changes in v4:
    - Use port macros and change port string names (Georgi Djakov)

Changes in v5-v7:
    - None

Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

There are 10 lines of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.

 Documentation/devicetree/bindings/display/msm/dpu.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt b/Documentation/devicetree/bindings/display/msm/dpu.txt
index ad2e883..a61dd40 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/dpu.txt
@@ -28,6 +28,11 @@ Required properties:
 - #address-cells: number of address cells for the MDSS children. Should be 1.
 - #size-cells: Should be 1.
 - ranges: parent bus address space is the same as the child bus address space.
+- interconnects : interconnect path specifier for MDSS according to
+  Documentation/devicetree/bindings/interconnect/interconnect.txt. Should be
+  2 paths corresponding to 2 AXI ports.
+- interconnect-names : MDSS will have 2 port names to differentiate between the
+  2 interconnect paths defined with interconnect specifier.

 Optional properties:
 - assigned-clocks: list of clock specifiers for clocks needing rate assignment
@@ -86,6 +91,11 @@ Example:
        interrupt-controller;
        #interrupt-cells = <1>;

+       interconnects = <&rsc_hlos MASTER_MDP0 &rsc_hlos SLAVE_EBI1>,
+               <&rsc_hlos MASTER_MDP1 &rsc_hlos SLAVE_EBI1>;
+
+       interconnect-names = "mdp0-mem", "mdp1-mem";
+
        iommus = <&apps_iommu 0>;

        #address-cells = <2>;

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