Documentation/devicetree/bindings/sound/nxp,lpc3220-i2s.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/nxp,lpc3220-i2s.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP LPC32XX I2S Controller
   8
   9 description:
  10   The I2S controller in LPC32XX SoCs, ASoC DAI.
  11
  12 maintainers:
  13   - J.M.B. Downing <jonathan.downing@nautel.com>
  14   - Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
  15
  16 allOf:
  17   - $ref: dai-common.yaml#
  18
  19 properties:
  20   compatible:
  21     enum:
  22       - nxp,lpc3220-i2s
  23
  24   reg:
  25     maxItems: 1
  26
  27   interrupts:
  28     maxItems: 1
  29
  30   clocks:
  31     items:
  32       - description: input clock of the peripheral.
  33
  34   dmas:
  35     items:
  36       - description: RX DMA Channel
  37       - description: TX DMA Channel
  38
  39   dma-names:
  40     items:
  41       - const: rx
  42       - const: tx
  43
  44   "#sound-dai-cells":
  45     const: 0
  46
  47 required:
  48   - compatible
  49   - reg
  50   - interrupts
  51   - clocks
  52   - dmas
  53   - dma-names
  54   - '#sound-dai-cells'
  55
  56 additionalProperties: false
  57
  58 examples:
  59   - |
  60     #include <dt-bindings/clock/lpc32xx-clock.h>
  61     #include <dt-bindings/interrupt-controller/irq.h>
  62
  63     i2s@20094000 {
  64       compatible = "nxp,lpc3220-i2s";
  65       reg = <0x20094000 0x1000>;
  66       interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
  67       clocks = <&clk LPC32XX_CLK_I2S0>;
  68       dmas = <&dma 0 1>, <&dma 13 1>;
  69       dma-names = "rx", "tx";
  70       #sound-dai-cells = <0>;
  71     };
  72
  73 ...