The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/img,parallel-out.txt

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    1 Imagination Technologies Parallel Output Controller
    2 
    3 Required Properties:
    4 
    5   - compatible : Compatible list, must contain "img,parallel-out".
    6 
    7   - #sound-dai-cells : Must be equal to 0
    8 
    9   - reg : Offset and length of the register set for the device.
   10 
   11   - dmas: Contains an entry for each entry in dma-names.
   12 
   13   - dma-names: Must include the following entry:
   14         "tx"
   15 
   16   - clocks : Contains an entry for each entry in clock-names.
   17 
   18   - clock-names : Includes the following entries:
   19         "sys"   The system clock
   20         "ref"   The reference clock
   21 
   22   - resets: Contains a phandle to the parallel out reset signal
   23 
   24   - reset-names: Contains the reset signal name "rst"
   25 
   26 Optional Properties:
   27 
   28   - interrupts : Contains the parallel out interrupt, if present
   29 
   30 Example:
   31 
   32 parallel_out: parallel-out@18100c00 {
   33         compatible = "img,parallel-out";
   34         reg = <0x18100C00 0x100>;
   35         interrupts = <GIC_SHARED 19 IRQ_TYPE_LEVEL_HIGH>;
   36         dmas = <&mdc 16 0xffffffff 0>;
   37         dma-names = "tx";
   38         clocks = <&cr_periph SYS_CLK_PAUD_OUT>,
   39                  <&clk_core CLK_AUDIO_DAC>;
   40         clock-names = "sys", "ref";
   41         resets = <&pistachio_reset PISTACHIO_RESET_PRL_OUT>;
   42         reset-names = "rst";
   43         #sound-dai-cells = <0>;
   44 };

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