ti,k2g-dss.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 # Copyright 2019 Texas Instruments Incorporated
    3 %YAML 1.2
    4 ---
    5 $id: "http://devicetree.org/schemas/display/ti/ti,k2g-dss.yaml#"
    6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    7 
    8 title: Texas Instruments K2G Display Subsystem
    9 
   10 maintainers:
   11   - Jyri Sarha <jsarha@ti.com>
   12   - Tomi Valkeinen <tomi.valkeinen@ti.com>
   13 
   14 description: |
   15   The K2G DSS is an ultra-light version of TI Keystone Display
   16   SubSystem. It has only one output port and video plane. The
   17   output is DPI.
   18 
   19 properties:
   20   compatible:
   21     const: ti,k2g-dss
   22 
   23   reg:
   24     items:
   25       - description: cfg DSS top level
   26       - description: common DISPC common
   27       - description: VID1 video plane 1
   28       - description: OVR1 overlay manager for vp1
   29       - description: VP1 video port 1
   30 
   31   reg-names:
   32     items:
   33       - const: cfg
   34       - const: common
   35       - const: vid1
   36       - const: ovr1
   37       - const: vp1
   38 
   39   clocks:
   40     items:
   41       - description: fck DSS functional clock
   42       - description: vp1 Video Port 1 pixel clock
   43 
   44   clock-names:
   45     items:
   46       - const: fck
   47       - const: vp1
   48 
   49   interrupts:
   50     maxItems: 1
   51 
   52   power-domains:
   53     maxItems: 1
   54     description: phandle to the associated power domain
   55 
   56   port:
   57     $ref: /schemas/graph.yaml#/properties/port
   58     description:
   59       The DSS DPI output port node
   60 
   61   max-memory-bandwidth:
   62     $ref: /schemas/types.yaml#/definitions/uint32
   63     description:
   64       Input memory (from main memory to dispc) bandwidth limit in
   65       bytes per second
   66 
   67 required:
   68   - compatible
   69   - reg
   70   - reg-names
   71   - clocks
   72   - clock-names
   73   - interrupts
   74   - port
   75 
   76 additionalProperties: false
   77 
   78 examples:
   79   - |
   80     #include <dt-bindings/interrupt-controller/arm-gic.h>
   81     #include <dt-bindings/interrupt-controller/irq.h>
   82 
   83     dss: dss@2540000 {
   84             compatible = "ti,k2g-dss";
   85             reg =   <0x02540000 0x400>,
   86                     <0x02550000 0x1000>,
   87                     <0x02557000 0x1000>,
   88                     <0x0255a800 0x100>,
   89                     <0x0255ac00 0x100>;
   90             reg-names = "cfg", "common", "vid1", "ovr1", "vp1";
   91             clocks =        <&k2g_clks 0x2 0>,
   92                             <&k2g_clks 0x2 1>;
   93             clock-names = "fck", "vp1";
   94             interrupts = <GIC_SPI 247 IRQ_TYPE_EDGE_RISING>;
   95 
   96             power-domains = <&k2g_pds 0x2>;
   97 
   98             max-memory-bandwidth = <230000000>;
   99 
  100             port {
  101                     dpi_out: endpoint {
  102                             remote-endpoint = <&sii9022_in>;
  103                     };
  104             };
  105     };

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