| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/reset/ti,tps380x-reset.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: TI TPS380x reset controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Marco Felsch <kernel@pengutronix.de> |
| 11 | |
| 12 | description: | |
| 13 | The TPS380x family [1] of supervisory circuits monitor supply voltages to |
| 14 | provide circuit initialization and timing supervision. The devices assert a |
| 15 | RESET signal if the voltage drops below a preset threshold or upon a manual |
| 16 | reset input (MR). The RESET output remains asserted for the factory |
| 17 | programmed delay after the voltage return above its threshold or after the |
| 18 | manual reset input is released. |
| 19 | |
| 20 | [1] https://www.ti.com/product/TPS3801 |
| 21 | |
| 22 | properties: |
| 23 | compatible: |
| 24 | enum: |
| 25 | - ti,tps3801 |
| 26 | |
| 27 | reset-gpios: |
| 28 | maxItems: 1 |
| 29 | description: Reference to the GPIO connected to the MR pin. |
| 30 | |
| 31 | "#reset-cells": |
| 32 | const: 0 |
| 33 | |
| 34 | required: |
| 35 | - compatible |
| 36 | - reset-gpios |
| 37 | - "#reset-cells" |
| 38 | |
| 39 | additionalProperties: false |
| 40 | |
| 41 | examples: |
| 42 | - | |
| 43 | #include <dt-bindings/gpio/gpio.h> |
| 44 | reset: reset-controller { |
| 45 | compatible = "ti,tps3801"; |
| 46 | #reset-cells = <0>; |
| 47 | reset-gpios = <&gpio3 2 GPIO_ACTIVE_LOW>; |
| 48 | }; |
| 49 | ... |