77 lines
1.7 KiB
YAML
77 lines
1.7 KiB
YAML
# Copyright 2021 The Chromium OS Authors
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# SPDX-License-Identifier: Apache-2.0
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description: |
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ST STM32 family USB Type-C / Power Delivery. The default values were
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taken from the LL_UCPD_StructInit function defined in the HAL.
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compatible: "st,stm32-ucpd"
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include: [base.yaml, pinctrl-device.yaml]
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properties:
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reg:
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required: true
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clocks:
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required: true
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interrupts:
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required: true
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psc-ucpdclk:
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default: 2
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type: int
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enum:
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- 1
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- 2
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- 4
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- 8
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- 16
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- 32
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- 64
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- 128
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description: |
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Determines the division ratio of a kernel clock pre-scaler
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producing UCPD peripheral clock (ucpd_clk). It is recommended
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to use the pre-scaler so as to set the ucpd_clk frequency in
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the range from 6 to 9 MHz.
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ifrgap:
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type: int
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default: 17
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description: |
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Determines the division ratio of a ucpd_clk divider producing
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inter-frame gap timer clock (tInterFrameGap).
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The division ratio 15 is to apply for Tx clock at the USB PD 2.0
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specification nominal value.
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Valid range: 2 - 32
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transwin:
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type: int
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default: 8
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description: |
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Determines the division ratio of a hbit_clk divider producing
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tTransitionWindow interval.
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Valid range: 2 - 32
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hbitclkdiv:
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type: int
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default: 14
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description: |
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Determines the division ratio of a ucpd_clk divider producing
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half-bit clock (hbit_clk)
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Valid range: 1 - 64
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dead-battery:
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type: boolean
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description: |
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Determine if USB-C Dead Battery pull-down's should be
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applied to the CC lines.
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pinctrl-0:
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required: true
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pinctrl-names:
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required: true
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