Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/spi/allwinner,sun6i-a31-spi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A31 SPI Controller
   8
   9 allOf:
  10   - $ref: spi-controller.yaml
  11
  12 maintainers:
  13   - Chen-Yu Tsai <wens@csie.org>
  14   - Maxime Ripard <mripard@kernel.org>
  15
  16 properties:
  17   compatible:
  18     oneOf:
  19       - const: allwinner,sun50i-r329-spi
  20       - const: allwinner,sun6i-a31-spi
  21       - const: allwinner,sun8i-h3-spi
  22       - items:
  23           - enum:
  24               - allwinner,sun8i-r40-spi
  25               - allwinner,sun50i-h6-spi
  26               - allwinner,sun50i-h616-spi
  27               - allwinner,suniv-f1c100s-spi
  28           - const: allwinner,sun8i-h3-spi
  29       - items:
  30           - enum:
  31               - allwinner,sun20i-d1-spi
  32               - allwinner,sun50i-r329-spi-dbi
  33           - const: allwinner,sun50i-r329-spi
  34       - items:
  35           - const: allwinner,sun20i-d1-spi-dbi
  36           - const: allwinner,sun50i-r329-spi-dbi
  37           - const: allwinner,sun50i-r329-spi
  38
  39   reg:
  40     maxItems: 1
  41
  42   interrupts:
  43     maxItems: 1
  44
  45   clocks:
  46     items:
  47       - description: Bus Clock
  48       - description: Module Clock
  49
  50   clock-names:
  51     items:
  52       - const: ahb
  53       - const: mod
  54
  55   resets:
  56     maxItems: 1
  57
  58   dmas:
  59     items:
  60       - description: RX DMA Channel
  61       - description: TX DMA Channel
  62
  63   dma-names:
  64     items:
  65       - const: rx
  66       - const: tx
  67
  68 patternProperties:
  69   "^.*@[0-9a-f]+":
  70     type: object
  71     additionalProperties: true
  72
  73     properties:
  74       reg:
  75         items:
  76           minimum: 0
  77           maximum: 4
  78
  79       spi-rx-bus-width:
  80         const: 1
  81
  82       spi-tx-bus-width:
  83         const: 1
  84
  85 required:
  86   - compatible
  87   - reg
  88   - interrupts
  89   - clocks
  90   - clock-names
  91
  92 unevaluatedProperties: false
  93
  94 examples:
  95   - |
  96     spi1: spi@1c69000 {
  97         compatible = "allwinner,sun6i-a31-spi";
  98         reg = <0x01c69000 0x1000>;
  99         interrupts = <0 66 4>;
 100         clocks = <&ahb1_gates 21>, <&spi1_clk>;
 101         clock-names = "ahb", "mod";
 102         resets = <&ahb1_rst 21>;
 103         #address-cells = <1>;
 104         #size-cells = <0>;
 105     };
 106
 107   - |
 108     spi0: spi@1c68000 {
 109         compatible = "allwinner,sun8i-h3-spi";
 110         reg = <0x01c68000 0x1000>;
 111         interrupts = <0 65 4>;
 112         clocks = <&ccu 30>, <&ccu 82>;
 113         clock-names = "ahb", "mod";
 114         dmas = <&dma 23>, <&dma 23>;
 115         dma-names = "rx", "tx";
 116         resets = <&ccu 15>;
 117         #address-cells = <1>;
 118         #size-cells = <0>;
 119     };
 120
 121 ...