dt-bindings: display/msm: add support for SM6115

Add DPU and MDSS schemas to describe MDSS and DPU blocks on the Qualcomm
SM6115 platform.
Configuration for DSI/PHY is shared with QCM2290 so compatibles are reused.
Lack of dsi phy supply in example is intended
due to fact on qcm2290, sm6115 and sm6125
this phy is supplied via power domain, not regulator.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/512872/
Link: https://lore.kernel.org/r/20221124001708.25720-2-a39.skl@gmail.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml

+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6115-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DPU dt properties for SM6115 target
+
+maintainers:
+  - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+$ref: /schemas/display/msm/dpu-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: qcom,sm6115-dpu
+
+  reg:
+    items:
+      - description: MDP register set
+      - description: VBIF register set
+
+  reg-names:
+    items:
+      - const: mdp
+      - const: vbif
+
+  clocks:
+    items:
+      - description: Display AXI
+      - description: Display AHB
+      - description: Display core
+      - description: Display lut
+      - description: Display rotator
+      - description: Display vsync
+
+  clock-names:
+    items:
+      - const: bus
+      - const: iface
+      - const: core
+      - const: lut
+      - const: rot
+      - const: vsync
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,sm6115-dispcc.h>
+    #include <dt-bindings/clock/qcom,gcc-sm6115.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    display-controller@5e01000 {
+        compatible = "qcom,sm6115-dpu";
+        reg = <0x05e01000 0x8f000>,
+              <0x05eb0000 0x2008>;
+        reg-names = "mdp", "vbif";
+
+        clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+                 <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                 <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                 <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+                 <&dispcc DISP_CC_MDSS_ROT_CLK>,
+                 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+        clock-names = "bus", "iface", "core", "lut", "rot", "vsync";
+
+        operating-points-v2 = <&mdp_opp_table>;
+        power-domains = <&rpmpd SM6115_VDDCX>;
+
+        interrupt-parent = <&mdss>;
+        interrupts = <0>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                endpoint {
+                    remote-endpoint = <&dsi0_in>;
+                };
+            };
+        };
+    };
+...

Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml

+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sm6115-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6115 Display MDSS
+
+maintainers:
+  - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+description:
+  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+  sub-blocks like DPU display controller and DSI. Device tree bindings of MDSS
+  are mentioned for SM6115 target.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: qcom,sm6115-mdss
+
+  clocks:
+    items:
+      - description: Display AHB clock from gcc
+      - description: Display AXI clock
+      - description: Display core clock
+
+  iommus:
+    maxItems: 2
+
+patternProperties:
+  "^display-controller@[0-9a-f]+$":
+    type: object
+    properties:
+      compatible:
+        const: qcom,sm6115-dpu
+
+  "^dsi@[0-9a-f]+$":
+    type: object
+    properties:
+      compatible:
+        const: qcom,dsi-ctrl-6g-qcm2290
+
+  "^phy@[0-9a-f]+$":
+    type: object
+    properties:
+      compatible:
+        const: qcom,dsi-phy-14nm-2290
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,sm6115-dispcc.h>
+    #include <dt-bindings/clock/qcom,gcc-sm6115.h>
+    #include <dt-bindings/clock/qcom,rpmcc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    mdss@5e00000 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "qcom,sm6115-mdss";
+        reg = <0x05e00000 0x1000>;
+        reg-names = "mdss";
+        power-domains = <&dispcc MDSS_GDSC>;
+        clocks = <&gcc GCC_DISP_AHB_CLK>,
+                 <&gcc GCC_DISP_HF_AXI_CLK>,
+                 <&dispcc DISP_CC_MDSS_MDP_CLK>;
+
+        interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+
+        iommus = <&apps_smmu 0x420 0x2>,
+                 <&apps_smmu 0x421 0x0>;
+        ranges;
+
+        display-controller@5e01000 {
+            compatible = "qcom,sm6115-dpu";
+            reg = <0x05e01000 0x8f000>,
+                  <0x05eb0000 0x2008>;
+            reg-names = "mdp", "vbif";
+
+            clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+                     <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                     <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                     <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+                     <&dispcc DISP_CC_MDSS_ROT_CLK>,
+                     <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+            clock-names = "bus", "iface", "core", "lut", "rot", "vsync";
+
+            operating-points-v2 = <&mdp_opp_table>;
+            power-domains = <&rpmpd SM6115_VDDCX>;
+
+            interrupt-parent = <&mdss>;
+            interrupts = <0>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    dpu_intf1_out: endpoint {
+                        remote-endpoint = <&dsi0_in>;
+                    };
+                };
+            };
+        };
+
+        dsi@5e94000 {
+            compatible = "qcom,dsi-ctrl-6g-qcm2290";
+            reg = <0x05e94000 0x400>;
+            reg-names = "dsi_ctrl";
+
+            interrupt-parent = <&mdss>;
+            interrupts = <4>;
+
+            clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+                     <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+                     <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+                     <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+                     <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                     <&gcc GCC_DISP_HF_AXI_CLK>;
+            clock-names = "byte",
+                          "byte_intf",
+                          "pixel",
+                          "core",
+                          "iface",
+                          "bus";
+            assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>, <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+            assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
+
+            operating-points-v2 = <&dsi_opp_table>;
+            power-domains = <&rpmpd SM6115_VDDCX>;
+            phys = <&dsi0_phy>;
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    dsi0_in: endpoint {
+                        remote-endpoint = <&dpu_intf1_out>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    dsi0_out: endpoint {
+                    };
+                };
+            };
+        };
+
+        dsi0_phy: phy@5e94400 {
+            compatible = "qcom,dsi-phy-14nm-2290";
+            reg = <0x05e94400 0x100>,
+                  <0x05e94500 0x300>,
+                  <0x05e94800 0x188>;
+            reg-names = "dsi_phy",
+                        "dsi_phy_lane",
+                        "dsi_pll";
+
+            #clock-cells = <1>;
+            #phy-cells = <0>;
+
+            clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, <&rpmcc RPM_SMD_XO_CLK_SRC>;
+            clock-names = "iface", "ref";
+        };
+    };
+...