mchp-i2s-mcc.txt

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    1 * Microchip I2S Multi-Channel Controller
    2 
    3 Required properties:
    4 - compatible:     Should be "microchip,sam9x60-i2smcc".
    5 - reg:            Should be the physical base address of the controller and the
    6                   length of memory mapped region.
    7 - interrupts:     Should contain the interrupt for the controller.
    8 - dmas:           Should be one per channel name listed in the dma-names property,
    9                   as described in atmel-dma.txt and dma.txt files.
   10 - dma-names:      Identifier string for each DMA request line in the dmas property.
   11                   Two dmas have to be defined, "tx" and "rx".
   12 - clocks:         Must contain an entry for each entry in clock-names.
   13                   Please refer to clock-bindings.txt.
   14 - clock-names:    Should be one of each entry matching the clocks phandles list:
   15                   - "pclk" (peripheral clock) Required.
   16                   - "gclk" (generated clock) Optional (1).
   17 
   18 Optional properties:
   19 - pinctrl-0:      Should specify pin control groups used for this controller.
   20 - princtrl-names: Should contain only one value - "default".
   21 
   22 
   23 (1) : Only the peripheral clock is required. The generated clock is optional
   24       and should be set mostly when Master Mode is required.
   25 
   26 Example:
   27 
   28         i2s@f001c000 {
   29                 compatible = "microchip,sam9x60-i2smcc";
   30                 reg = <0xf001c000 0x100>;
   31                 interrupts = <34 IRQ_TYPE_LEVEL_HIGH 7>;
   32                 dmas = <&dma0
   33                         (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
   34                          AT91_XDMAC_DT_PERID(36))>,
   35                        <&dma0
   36                         (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
   37                          AT91_XDMAC_DT_PERID(37))>;
   38                 dma-names = "tx", "rx";
   39                 clocks = <&i2s_clk>, <&i2s_gclk>;
   40                 clock-names = "pclk", "gclk";
   41                 pinctrl-names = "default";
   42                 pinctrl-0 = <&pinctrl_i2s_default>;
   43         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/mchp-i2s-mcc.txt

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sys/contrib/device-tree/Bindings/sound/mchp-i2s-mcc.txt