| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | }; |