[PATCH v2 4/9] dt-bindings: display: msm: document the Milos Mobile Display Subsystem

[Luca Weiss]

Document the Mobile Display Subsystem (MDSS) on the Milos SoC.

Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
---
 .../bindings/display/msm/qcom,milos-mdss.yaml      | 283 +++++++++++++++++++++
 1 file changed, 283 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/qcom,milos-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,milos-mdss.yaml
new file mode 100644
index 000000000000..0fb66b4b2742
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,milos-mdss.yaml
@@ -0,0 +1,283 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,milos-mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Milos Display MDSS
+
+maintainers:
+  - Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
+
+description:
+  Milos MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
+  DPU display controller, DSI and DP interfaces etc.
+
+$ref: /schemas/display/msm/mdss-common.yaml#
+
+properties:
+  compatible:
+    const: qcom,milos-mdss
+
+  clocks:
+    items:
+      - description: Display AHB
+      - description: Display hf AXI
+      - description: Display core
+
+  iommus:
+    maxItems: 1
+
+  interconnects:
+    items:
+      - description: Interconnect path from mdp0 port to the data bus
+      - description: Interconnect path from CPU to the reg bus
+
+  interconnect-names:
+    items:
+      - const: mdp0-mem
+      - const: cpu-cfg
+
+patternProperties:
+  "^display-controller@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+    properties:
+      compatible:
+        const: qcom,milos-dpu
+
+  "^displayport-controller@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+    properties:
+      compatible:
+        const: qcom,milos-dp
+
+  "^dsi@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+    properties:
+      compatible:
+        items:
+          - const: qcom,milos-dsi-ctrl
+          - const: qcom,mdss-dsi-ctrl
+
+  "^phy@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+    properties:
+      compatible:
+        const: qcom,milos-dsi-phy-4nm
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/qcom,rpmhpd.h>
+    #include <dt-bindings/interconnect/qcom,milos-rpmh.h>
+
+    display-subsystem@ae00000 {
+        compatible = "qcom,milos-mdss";
+        reg = <0x0ae00000 0x1000>;
+        reg-names = "mdss";
+
+        interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH 0>;
+
+        clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                 <&gcc GCC_DISP_HF_AXI_CLK>,
+                 <&dispcc DISP_CC_MDSS_MDP_CLK>;
+
+        resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
+
+        interconnects = <&mmss_noc MASTER_MDP QCOM_ICC_TAG_ALWAYS
+                         &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+                        <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+                         &cnoc_main SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+        interconnect-names = "mdp0-mem",
+                             "cpu-cfg";
+
+        power-domains = <&dispcc DISP_CC_MDSS_CORE_GDSC>;
+
+        iommus = <&apps_smmu 0x1c00 0x2>;
+
+        interrupt-controller;
+        #interrupt-cells = <1>;
+
+        #address-cells = <2>;
+        #size-cells = <2>;
+        ranges;
+
+        display-controller@ae01000 {
+            compatible = "qcom,milos-dpu";
+            reg = <0x0ae01000 0x8f000>,
+                  <0x0aeb0000 0x3000>;
+            reg-names = "mdp",
+                        "vbif";
+
+            interrupts-extended = <&mdss 0>;
+
+            clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+                     <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                     <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+                     <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                     <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+            clock-names = "nrt_bus",
+                          "iface",
+                          "lut",
+                          "core",
+                          "vsync";
+
+            assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+            assigned-clock-rates = <19200000>;
+
+            operating-points-v2 = <&mdp_opp_table>;
+
+            power-domains = <&rpmhpd RPMHPD_CX>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+
+                    dpu_intf1_out: endpoint {
+                        remote-endpoint = <&mdss_dsi0_in>;
+                    };
+                };
+            };
+
+            mdp_opp_table: opp-table {
+                compatible = "operating-points-v2";
+
+                opp-200000000 {
+                    opp-hz = /bits/ 64 <200000000>;
+                    required-opps = <&rpmhpd_opp_low_svs>;
+                };
+
+                opp-342000000 {
+                    opp-hz = /bits/ 64 <342000000>;
+                    required-opps = <&rpmhpd_opp_svs>;
+                };
+
+                opp-402000000 {
+                    opp-hz = /bits/ 64 <402000000>;
+                    required-opps = <&rpmhpd_opp_svs_l1>;
+                };
+
+                opp-535000000 {
+                    opp-hz = /bits/ 64 <535000000>;
+                    required-opps = <&rpmhpd_opp_nom>;
+                };
+
+                opp-600000000 {
+                    opp-hz = /bits/ 64 <600000000>;
+                    required-opps = <&rpmhpd_opp_nom_l1>;
+                };
+
+                opp-630000000 {
+                    opp-hz = /bits/ 64 <630000000>;
+                    required-opps = <&rpmhpd_opp_turbo>;
+                };
+            };
+        };
+
+        dsi@ae94000 {
+            compatible = "qcom,milos-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+            reg = <0x0ae94000 0x1000>;
+            reg-names = "dsi_ctrl";
+
+            interrupts-extended = <&mdss 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 = <&mdss_dsi0_phy DSI_BYTE_PLL_CLK>,
+                                     <&mdss_dsi0_phy DSI_PIXEL_PLL_CLK>;
+
+            operating-points-v2 = <&mdss_dsi_opp_table>;
+
+            power-domains = <&rpmhpd RPMHPD_CX>;
+
+            phys = <&mdss_dsi0_phy>;
+            phy-names = "dsi";
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+
+                    mdss_dsi0_in: endpoint {
+                        remote-endpoint = <&dpu_intf1_out>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+
+                    mdss_dsi0_out: endpoint {
+                    };
+                };
+            };
+
+            mdss_dsi_opp_table: opp-table {
+                compatible = "operating-points-v2";
+
+                opp-187500000 {
+                    opp-hz = /bits/ 64 <187500000>;
+                    required-opps = <&rpmhpd_opp_low_svs>;
+                };
+
+                opp-300000000 {
+                    opp-hz = /bits/ 64 <300000000>;
+                    required-opps = <&rpmhpd_opp_svs>;
+                };
+
+                opp-358000000 {
+                    opp-hz = /bits/ 64 <358000000>;
+                    required-opps = <&rpmhpd_opp_svs_l1>;
+                };
+            };
+        };
+
+        mdss_dsi0_phy: phy@ae95000 {
+            compatible = "qcom,milos-dsi-phy-4nm";
+            reg = <0x0ae95000 0x200>,
+                  <0x0ae95200 0x300>,
+                  <0x0ae95500 0x400>;
+            reg-names = "dsi_phy",
+                        "dsi_phy_lane",
+                        "dsi_pll";
+
+            clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                     <&rpmhcc RPMH_CXO_CLK>;
+            clock-names = "iface",
+                          "ref";
+
+            #clock-cells = <1>;
+            #phy-cells = <0>;
+        };
+    };
+...

-- 
2.53.0