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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/reset/st,stih407-picophyreset.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics STi family Sysconfig Picophy SoftReset Controller
maintainers:
- Peter Griffin <peter.griffin@linaro.org>
description: |
This binding describes a reset controller device that is used to enable and
disable on-chip PicoPHY USB2 phy(s) using "softreset" control bits found in
the STi family SoC system configuration registers.
The actual action taken when softreset is asserted is hardware dependent.
However, when asserted it may not be possible to access the hardware's
registers and after an assert/deassert sequence the hardware's previous state
may no longer be valid.
properties:
compatible:
const: st,stih407-picophyreset
'#reset-cells':
const: 1
required:
- compatible
- '#reset-cells'
additionalProperties: false
examples:
- |
#include <dt-bindings/reset/stih407-resets.h>
picophyreset: picophyreset-controller {
compatible = "st,stih407-picophyreset";
#reset-cells = <1>;
};
// Specifying picophyreset control of devices
usb2_picophy0: usbpicophy {
resets = <&picophyreset STIH407_PICOPHY0_RESET>;
};
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