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diff --git a/zephyr/dts/bindings/keyboard/cros-keyscan.yaml b/zephyr/dts/bindings/keyboard/cros-keyscan.yaml
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- # Copyright 2021 The Chromium OS Authors. All rights reserved.
- # Use of this source code is governed by a BSD-style license that can be
- # found in the LICENSE file.
-
-description: Keyboard scanning properties
-
-compatible: "cros-keyscan"
-
-properties:
- output-settle:
- type: int
- required: false
- default: 80
- description: |
- Delay time, in microseconds, between setting up output and waiting for
- it to settle. 80 microseconds is the recommended value when column 2
- of the keyboard passes through the Google Security Chip. Otherwise 50
- microseconds is the recommended value.
-
- debounce-down:
- type: int
- required: false
- default: 9000
- description: |
- Time, in microseconds, to debounce key-down.
-
- debounce-up:
- type: int
- required: false
- default: 30000
- description: |
- Time, in microseconds, to debounce key-up.
-
- scan-period:
- type: int
- required: false
- default: 3000
- description: |
- Time between scans when keyboard scan task runs in polling mode.
-
- min-post-scan-delay:
- type: int
- required: false
- default: 1000
- description: |
- Minimum time between end of one scan and start of the next one.
- This ensures keyboard scanning doesn't starve the rest of the system
- if the scan period is set too short, or if other higher-priority
- system activity is starving the keyboard scan task too.
-
- poll-timeout:
- type: int
- required: false
- default: 100000
- description: |
- Revert to interrupt mode after no keyboard activity for this period.
- Specified in microseconds.
-
- actual-key-mask:
- type: array
- required: false
- default: [
- 0x1c, # C0
- 0xff, # C1
- 0xff, # C2
- 0xff, # C3
- 0xff, # C4
- 0xf5, # C5
- 0xff, # C6
- 0xa4, # C7
- 0xfe, # C8
- 0x55, # C9
- 0xfa, # C10
- 0xff, # C11
- 0xca, # C12
- 0x00, # C13 for keypad
- 0x00, # C14 for keypad
- ]
- description: |
- Keyboard scanning mask. For each keyboard column, specify which
- keyboard rows actually exist. Default key mask includes scanning for
- full Chromebook keyboard, excluding the keypad.