slim-ngd-qcom-ctrl.txt

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    1 Qualcomm SLIMBus Non Generic Device (NGD) Controller binding
    2 
    3 SLIMBus NGD controller is a light-weight driver responsible for communicating
    4 with SLIMBus slaves directly over the bus using messaging interface and
    5 communicating with master component residing on ADSP for bandwidth and
    6 data-channel management
    7 
    8 Please refer to slimbus/bus.txt for details of the common SLIMBus bindings.
    9 
   10 - compatible:
   11         Usage: required
   12         Value type: <stringlist>
   13         Definition: must be "qcom,slim-ngd-v<MAJOR>.<MINOR>.<STEP>"
   14         must be one of the following.
   15         "qcom,slim-ngd-v1.5.0" for MSM8996
   16         "qcom,slim-ngd-v2.1.0" for SDM845
   17 
   18 - reg:
   19         Usage: required
   20         Value type: <prop-encoded-array>
   21         Definition: must specify the base address and size of the controller
   22                     register space.
   23 - dmas
   24         Usage: required
   25         Value type: <array of phandles>
   26         Definition: List of rx and tx dma channels
   27 
   28 - dma-names
   29         Usage: required
   30         Value type: <stringlist>
   31         Definition: must be "rx" and "tx".
   32 
   33 - interrupts:
   34         Usage: required
   35         Value type: <prop-encoded-array>
   36         Definition: must list controller IRQ.
   37 
   38 #address-cells
   39         Usage: required
   40         Value type: <u32>
   41         Definition: Should be 1, reflecting the instance id of ngd.
   42 
   43 #size-cells
   44         Usage: required
   45         Value type: <u32>
   46         Definition: Should be 0
   47 
   48 = NGD Devices
   49 Each subnode represents an instance of NGD, must contain the following
   50 properties:
   51 
   52 - reg:
   53         Usage: required
   54         Value type: <u32>
   55         Definition: Should be instance id of ngd.
   56 
   57 #address-cells
   58         Usage: required
   59         Refer to slimbus/bus.txt for details of the common SLIMBus bindings.
   60 
   61 #size-cells
   62         Usage: required
   63         Refer to slimbus/bus.txt for details of the common SLIMBus bindings.
   64 
   65 = EXAMPLE
   66 
   67 slim@91c0000 {
   68         compatible = "qcom,slim-ngd-v1.5.0";
   69         reg = <0x91c0000 0x2c000>;
   70         interrupts = <0 163 0>;
   71         dmas =  <&slimbam 3>, <&slimbam 4>;
   72         dma-names = "rx", "tx";
   73         #address-cells = <1>;
   74         #size-cells = <0>;
   75         ngd@1 {
   76                 reg = <1>;
   77                 #address-cells = <1>;
   78                 #size-cells = <1>;
   79                 codec@1 {
   80                         compatible = "slim217,1a0";
   81                         reg  = <1 0>;
   82                 };
   83         };
   84 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/slimbus/slim-ngd-qcom-ctrl.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/slimbus/slim-ngd-qcom-ctrl.txt