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authorMarco Felsch <m.felsch@pengutronix.de>2022-05-30 11:22:25 +0200
committerPhilipp Zabel <p.zabel@pengutronix.de>2022-07-26 17:32:24 +0200
commit729a8a57355f12d9ecba150fbef693e51b99e7ec (patch)
treed735736b3e68027fad1822efd1aa65a744866ec9 /Documentation/devicetree/bindings/reset
parent9c68d4e621ebfc166f672fa7afe14591f91d144c (diff)
dt-bindings: reset: Add TPS380x documentation
Add device-tree binding documentation for the tps380x reset driver. The binding uses enum to make it easy to add more devices from that family. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Link: https://lore.kernel.org/r/20220530092226.748644-1-m.felsch@pengutronix.de
Diffstat (limited to 'Documentation/devicetree/bindings/reset')
-rw-r--r--Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml49
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diff --git a/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml b/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/ti,tps380x-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPS380x reset controller node bindings
+
+maintainers:
+ - Marco Felsch <kernel@pengutronix.de>
+
+description: |
+ The TPS380x family [1] of supervisory circuits monitor supply voltages to
+ provide circuit initialization and timing supervision. The devices assert a
+ RESET signal if the voltage drops below a preset threshold or upon a manual
+ reset input (MR). The RESET output remains asserted for the factory
+ programmed delay after the voltage return above its threshold or after the
+ manual reset input is released.
+
+ [1] https://www.ti.com/product/TPS3801
+
+properties:
+ compatible:
+ enum:
+ - ti,tps3801
+
+ reset-gpios:
+ maxItems: 1
+ description: Reference to the GPIO connected to the MR pin.
+
+ "#reset-cells":
+ const: 0
+
+required:
+ - compatible
+ - reset-gpios
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ reset: reset-controller {
+ compatible = "ti,tps3801";
+ #reset-cells = <0>;
+ reset-gpios = <&gpio3 2 GPIO_ACTIVE_LOW>;
+ };
+...