Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mfd/allwinner,sun4i-a10-ts.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A10 Resistive Touchscreen Controller Device Tree Bindings
   8
   9 maintainers:
  10   - Chen-Yu Tsai <wens@csie.org>
  11   - Maxime Ripard <mripard@kernel.org>
  12
  13 properties:
  14   "#thermal-sensor-cells":
  15     const: 0
  16
  17   compatible:
  18     enum:
  19       - allwinner,sun4i-a10-ts
  20       - allwinner,sun5i-a13-ts
  21       - allwinner,sun6i-a31-ts
  22
  23   reg:
  24     maxItems: 1
  25
  26   interrupts:
  27     maxItems: 1
  28
  29   allwinner,ts-attached:
  30     $ref: /schemas/types.yaml#/definitions/flag
  31     description: A touchscreen is attached to the controller
  32
  33   allwinner,tp-sensitive-adjust:
  34     $ref: /schemas/types.yaml#/definitions/uint32
  35     minimum: 0
  36     maximum: 15
  37     default: 15
  38
  39     description: Sensitivity of pen down detection
  40
  41   allwinner,filter-type:
  42     $ref: /schemas/types.yaml#/definitions/uint32
  43     minimum: 0
  44     maximum: 3
  45     default: 1
  46
  47     description: |
  48       Select median and averaging filter. Sample used for median /
  49       averaging filter:
  50         0: 4/2
  51         1: 5/3
  52         2: 8/4
  53         3: 16/8
  54
  55 required:
  56   - "#thermal-sensor-cells"
  57   - compatible
  58   - reg
  59   - interrupts
  60
  61 additionalProperties: false
  62
  63 examples:
  64   - |
  65     rtp: rtp@1c25000 {
  66         compatible = "allwinner,sun4i-a10-ts";
  67         reg = <0x01c25000 0x100>;
  68         interrupts = <29>;
  69         allwinner,ts-attached;
  70         #thermal-sensor-cells = <0>;
  71         /* sensitive/noisy touch panel */
  72         allwinner,tp-sensitive-adjust = <0>;
  73         allwinner,filter-type = <3>;
  74     };
  75
  76 ...