dt-bindings: display/msm: split dpu-sdm845 into DPU and MDSS parts

In order to make the schema more readable, split dpu-sdm845 into the DPU
and MDSS parts, each one describing just a single device binding.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508382/
Link: https://lore.kernel.org/r/20221024164225.3236654-9-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml

@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sdm845-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DPU dt properties for SDM845 target
+
+maintainers:
+  - Krishna Manikandan <quic_mkrishn@quicinc.com>
+
+$ref: /schemas/display/msm/dpu-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: qcom,sdm845-dpu
+
+  reg:
+    items:
+      - description: Address offset and size for mdp register set
+      - description: Address offset and size for vbif register set
+
+  reg-names:
+    items:
+      - const: mdp
+      - const: vbif
+
+  clocks:
+    items:
+      - description: Display GCC bus clock
+      - description: Display ahb clock
+      - description: Display axi clock
+      - description: Display core clock
+      - description: Display vsync clock
+
+  clock-names:
+    items:
+      - const: gcc-bus
+      - const: iface
+      - const: bus
+      - const: core
+      - const: vsync
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+    #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    display-controller@ae01000 {
+        compatible = "qcom,sdm845-dpu";
+        reg = <0x0ae01000 0x8f000>,
+              <0x0aeb0000 0x2008>;
+        reg-names = "mdp", "vbif";
+
+        clocks = <&gcc GCC_DISP_AXI_CLK>,
+                 <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                 <&dispcc DISP_CC_MDSS_AXI_CLK>,
+                 <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+        clock-names = "gcc-bus", "iface", "bus", "core", "vsync";
+
+        interrupt-parent = <&mdss>;
+        interrupts = <0>;
+        power-domains = <&rpmhpd SDM845_CX>;
+        operating-points-v2 = <&mdp_opp_table>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                endpoint {
+                    remote-endpoint = <&dsi0_in>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                endpoint {
+                    remote-endpoint = <&dsi1_in>;
+                };
+            };
+        };
+    };
+...

Documentation/devicetree/bindings/display/msm/qcom,sdm845-mdss.yaml

@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sdm845-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SDM845 Display MDSS
+
+maintainers:
+  - Krishna Manikandan <quic_mkrishn@quicinc.com>
+
+description:
+  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+  sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
+  bindings of MDSS are mentioned for SDM845 target.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: qcom,sdm845-mdss
+
+  clocks:
+    items:
+      - description: Display AHB clock from gcc
+      - description: Display core clock
+
+  clock-names:
+    items:
+      - const: iface
+      - const: core
+
+  iommus:
+    maxItems: 2
+
+  interconnects:
+    maxItems: 2
+
+  interconnect-names:
+    maxItems: 2
+
+patternProperties:
+  "^display-controller@[0-9a-f]+$":
+    type: object
+    properties:
+      compatible:
+        const: qcom,sdm845-dpu
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+    #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    display-subsystem@ae00000 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "qcom,sdm845-mdss";
+        reg = <0x0ae00000 0x1000>;
+        reg-names = "mdss";
+        power-domains = <&dispcc MDSS_GDSC>;
+
+        clocks = <&gcc GCC_DISP_AHB_CLK>,
+                 <&dispcc DISP_CC_MDSS_MDP_CLK>;
+        clock-names = "iface", "core";
+
+        interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+
+        iommus = <&apps_smmu 0x880 0x8>,
+                 <&apps_smmu 0xc80 0x8>;
+        ranges;
+
+        display-controller@ae01000 {
+            compatible = "qcom,sdm845-dpu";
+            reg = <0x0ae01000 0x8f000>,
+                  <0x0aeb0000 0x2008>;
+            reg-names = "mdp", "vbif";
+
+            clocks = <&gcc GCC_DISP_AXI_CLK>,
+                     <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                     <&dispcc DISP_CC_MDSS_AXI_CLK>,
+                     <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                     <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+            clock-names = "gcc-bus", "iface", "bus", "core", "vsync";
+
+            interrupt-parent = <&mdss>;
+            interrupts = <0>;
+            power-domains = <&rpmhpd SDM845_CX>;
+            operating-points-v2 = <&mdp_opp_table>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    dpu_intf1_out: endpoint {
+                        remote-endpoint = <&dsi0_in>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    dpu_intf2_out: endpoint {
+                        remote-endpoint = <&dsi1_in>;
+                    };
+                };
+            };
+        };
+    };
+...