Documentation/devicetree/bindings/spi/cirrus,ep9301-spi.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/spi/cirrus,ep9301-spi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: EP93xx SoC SPI controller
   8
   9 maintainers:
  10   - Alexander Sverdlin <alexander.sverdlin@gmail.com>
  11   - Nikita Shubin <nikita.shubin@maquefel.me>
  12
  13 allOf:
  14   - $ref: spi-controller.yaml#
  15
  16 properties:
  17   compatible:
  18     oneOf:
  19       - const: cirrus,ep9301-spi
  20       - items:
  21           - enum:
  22               - cirrus,ep9302-spi
  23               - cirrus,ep9307-spi
  24               - cirrus,ep9312-spi
  25               - cirrus,ep9315-spi
  26           - const: cirrus,ep9301-spi
  27
  28   reg:
  29     items:
  30       - description: SPI registers region
  31
  32   interrupts:
  33     maxItems: 1
  34
  35   clocks:
  36     items:
  37       - description: SPI Controller reference clock source
  38
  39   dmas:
  40     items:
  41       - description: rx DMA channel
  42       - description: tx DMA channel
  43
  44   dma-names:
  45     items:
  46       - const: rx
  47       - const: tx
  48
  49 required:
  50   - compatible
  51   - reg
  52   - interrupts
  53   - clocks
  54
  55 unevaluatedProperties: false
  56
  57 examples:
  58   - |
  59     #include <dt-bindings/gpio/gpio.h>
  60     #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
  61     spi@808a0000 {
  62         compatible = "cirrus,ep9301-spi";
  63         reg = <0x808a0000 0x18>;
  64         interrupt-parent = <&vic1>;
  65         interrupts = <21>;
  66         clocks = <&syscon EP93XX_CLK_SPI>;
  67         dmas = <&dma1 10 2>, <&dma1 10 1>;
  68         dma-names = "rx", "tx";
  69         cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
  70     };