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
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 ...
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