Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/spi/allwinner,sun4i-a10-spi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A10 SPI Controller Device Tree Bindings
   8
   9 allOf:
  10   - $ref: "spi-controller.yaml"
  11
  12 maintainers:
  13   - Chen-Yu Tsai <wens@csie.org>
  14   - Maxime Ripard <maxime.ripard@bootlin.com>
  15
  16 properties:
  17   "#address-cells": true
  18   "#size-cells": true
  19
  20   compatible:
  21     const: allwinner,sun4i-a10-spi
  22
  23   reg:
  24     maxItems: 1
  25
  26   interrupts:
  27     maxItems: 1
  28
  29   clocks:
  30     items:
  31       - description: Bus Clock
  32       - description: Module Clock
  33
  34   clock-names:
  35     items:
  36       - const: ahb
  37       - const: mod
  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   num-cs: true
  50
  51 patternProperties:
  52   "^.*@[0-9a-f]+":
  53     type: object
  54     properties:
  55       reg:
  56         items:
  57           minimum: 0
  58           maximum: 4
  59
  60       spi-rx-bus-width:
  61         const: 1
  62
  63       spi-tx-bus-width:
  64         const: 1
  65
  66 required:
  67   - compatible
  68   - reg
  69   - interrupts
  70   - clocks
  71   - clock-names
  72
  73 additionalProperties: false
  74
  75 examples:
  76   - |
  77     spi1: spi@1c06000 {
  78         compatible = "allwinner,sun4i-a10-spi";
  79         reg = <0x01c06000 0x1000>;
  80         interrupts = <11>;
  81         clocks = <&ahb_gates 21>, <&spi1_clk>;
  82         clock-names = "ahb", "mod";
  83         #address-cells = <1>;
  84         #size-cells = <0>;
  85     };
  86
  87 ...