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