1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 # Copyright 2019 Bootlin
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/gpio/xylon,logicvc-gpio.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: Xylon LogiCVC GPIO controller
9
10 maintainers:
11 - Paul Kocialkowski <paul.kocialkowski@bootlin.com>
12
13 description: |
14 The LogiCVC GPIO describes the GPIO block included in the LogiCVC display
15 controller. These are meant to be used for controlling display-related
16 signals.
17
18 The controller exposes GPIOs from the display and power control registers,
19 which are mapped by the driver as follows:
20 - GPIO[4:0] (display control) mapped to index 0-4
21 - EN_BLIGHT (power control) mapped to index 5
22 - EN_VDD (power control) mapped to index 6
23 - EN_VEE (power control) mapped to index 7
24 - V_EN (power control) mapped to index 8
25
26 properties:
27 $nodename:
28 pattern: "^gpio@[0-9a-f]+$"
29
30 compatible:
31 enum:
32 - xylon,logicvc-3.02.a-gpio
33
34 reg:
35 maxItems: 1
36
37 "#gpio-cells":
38 const: 2
39
40 gpio-controller: true
41
42 gpio-line-names:
43 minItems: 1
44 maxItems: 9
45
46 required:
47 - compatible
48 - reg
49 - "#gpio-cells"
50 - gpio-controller
51
52 additionalProperties: false
53
54 examples:
55 - |
56 logicvc: logicvc@43c00000 {
57 compatible = "xylon,logicvc-3.02.a", "syscon", "simple-mfd";
58 reg = <0x43c00000 0x6000>;
59
60 #address-cells = <1>;
61 #size-cells = <1>;
62
63 logicvc_gpio: gpio@40 {
64 compatible = "xylon,logicvc-3.02.a-gpio";
65 reg = <0x40 0x40>;
66 gpio-controller;
67 #gpio-cells = <2>;
68 gpio-line-names = "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4",
69 "EN_BLIGHT", "EN_VDD", "EN_VEE", "V_EN";
70 };
71 };
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