sprd,display-subsystem.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/display/sprd/sprd,display-subsystem.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Unisoc DRM master device
    8 
    9 maintainers:
   10   - Kevin Tang <kevin.tang@unisoc.com>
   11 
   12 description: |
   13   The Unisoc DRM master device is a virtual device needed to list all
   14   DPU devices or other display interface nodes that comprise the
   15   graphics subsystem.
   16 
   17   Unisoc's display pipeline have several components as below description,
   18   multi display controllers and corresponding physical interfaces.
   19   For different display scenarios, dpu0 and dpu1 maybe binding to different
   20   encoder.
   21 
   22   E.g:
   23   dpu0 and dpu1 both binding to DSI for dual mipi-dsi display;
   24   dpu0 binding to DSI for primary display, and dpu1 binding to DP for external display;
   25 
   26           +-----------------------------------------+
   27           |                                         |
   28           |                            +---------+  |
   29   +----+  |   +----+    +---------+    |DPHY/CPHY|  |   +------+
   30   |    +----->+dpu0+--->+MIPI|DSI +--->+Combo    +----->+Panel0|
   31   |AXI |  |   +----+    +---------+    +---------+  |   +------+
   32   |    |  |                  ^                      |
   33   |    |  |                  |                      |
   34   |    |  |      +-----------+                      |
   35   |    |  |      |                                  |
   36   |APB |  |   +--+-+    +-----------+    +---+      |   +------+
   37   |    +----->+dpu1+--->+DisplayPort+--->+PHY+--------->+Panel1|
   38   |    |  |   +----+    +-----------+    +---+      |   +------+
   39   +----+  |                                         |
   40           +-----------------------------------------+
   41 
   42 properties:
   43   compatible:
   44     const: sprd,display-subsystem
   45 
   46   ports:
   47     $ref: /schemas/types.yaml#/definitions/phandle-array
   48     items:
   49       maxItems: 1
   50     description:
   51       Should contain a list of phandles pointing to display interface port
   52       of DPU devices.
   53 
   54 required:
   55   - compatible
   56   - ports
   57 
   58 additionalProperties: false
   59 
   60 examples:
   61   - |
   62     display-subsystem {
   63         compatible = "sprd,display-subsystem";
   64         ports = <&dpu_out>;
   65     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/display/sprd/sprd,display-subsystem.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/display/sprd/sprd,display-subsystem.yaml