[PATCH v9 2/2] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller

[Krishna Manikandan <mkrishn@codeaurora.org>]

Changes in v10:
- Change title of this patch as it does not contain PLL bindings anymore
- Remove redundant properties
- Remove use of IRQ flag
- Fix ports property

Previous Change log:
https://lkml.kernel.org/lkml/1597066683-6044-2-git-send-email-mkrishn@codeaurora.org/

Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
---
 .../bindings/display/msm/dp-controller.yaml        | 120 +++++++++++++++++++++
 .../bindings/display/msm/dpu-sc7180.yaml           |  10 ++
 2 files changed, 130 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
new file mode 100644
index 0000000..bc80632
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -0,0 +1,120 @@
+# SPDX-License-Identifier: (GPL-2.0-only  OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MSM Display Port Controller.
+
+maintainers:
+  - Chandan Uddaraju <chandanu@codeaurora.org>
+  - Vara Reddy <varar@codeaurora.org>
+  - Tanmay Shah <tanmay@codeaurora.org>
+
+description: |
+  Device tree bindings for DisplayPort host controller for MSM targets
+  that are compatible with VESA DisplayPort interface specification.
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7180-dp
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: AHB clock to enable register access
+      - description: Display Port AUX clock
+      - description: Display Port Link clock
+      - description: Link interface clock between DP and PHY
+      - description: Display Port Pixel clock
+
+  clock-names:
+    items:
+      - const: core_iface
+      - const: core_aux
+      - const: ctrl_link
+      - const: ctrl_link_iface
+      - const: stream_pixel
+
+  ports:
+    type: object
+    description: |
+      A ports node with endpoint definitions as defined in
+      Documentation/devicetree/bindings/media/video-interfaces.txt.
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+      port@0:
+        type: object
+        description: Input endpoint of the controller.
+
+      port@1:
+        type: object
+        description: Output endpoint of the controller.
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
+
+    mdss: mdss {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      interrupt-controller;
+
+      msm_dp: displayport-controller@ae90000 {
+        compatible = "qcom,sc7180-dp";
+        reg = <0 0xae90000 0 0x1400>;
+        interrupt-parent = <&mdss>;
+        interrupts = <12>;
+        clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
+        clock-names = "core_iface", "core_aux",
+                      "ctrl_link",
+                      "ctrl_link_iface", "stream_pixel";
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                dp_in: endpoint {
+                    remote-endpoint = <&dpu_intf0_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                dp_out: endpoint {
+                };
+            };
+        };
+      };
+    };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
index 8397ea8..9549d8f 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
@@ -132,6 +132,9 @@ patternProperties:
           port@1:
             type: object
             description: DPU_INTF2 (DSI2)
+          port@2:
+            type: object
+            description: DPU_INTF0 (DP)
 
       assigned-clocks:
         maxItems: 4
@@ -228,6 +231,13 @@ examples:
                                                   remote-endpoint = <&dsi0_in>;
                                    };
                            };
+
+                            port@2 {
+                                    reg = <2>;
+                                    dpu_intf0_out: endpoint {
+                                                   remote-endpoint = <&dp_in>;
+                                    };
+                            };
                    };
          };
       };
-- 
2.7.4