| Benjamin Gaignard | d50f974 | 2020-01-22 10:55:57 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/serial/rs485.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: RS485 serial communications Bindings |
| 8 | |
| 9 | description: The RTS signal is capable of automatically controlling |
| 10 | line direction for the built-in half-duplex mode. |
| 11 | The properties described hereafter shall be given to a |
| 12 | half-duplex capable UART node. |
| 13 | |
| 14 | maintainers: |
| 15 | - Rob Herring <robh@kernel.org> |
| 16 | |
| 17 | properties: |
| 18 | rs485-rts-delay: |
| 19 | description: prop-encoded-array <a b> |
| 20 | allOf: |
| 21 | - $ref: /schemas/types.yaml#/definitions/uint32-array |
| 22 | - items: |
| 23 | items: |
| 24 | - description: |
| 25 | Delay between rts signal and beginning of data sent in milliseconds. |
| 26 | It corresponds to the delay before sending data. |
| 27 | default: 0 |
| 28 | maximum: 1000 |
| 29 | - description: |
| 30 | Delay between end of data sent and rts signal in milliseconds. |
| 31 | It corresponds to the delay after sending data and actual release of the line. |
| 32 | default: 0 |
| 33 | maximum: 1000 |
| 34 | |
| 35 | rs485-rts-active-low: |
| 36 | description: drive RTS low when sending (default is high). |
| 37 | $ref: /schemas/types.yaml#/definitions/flag |
| 38 | |
| 39 | linux,rs485-enabled-at-boot-time: |
| 40 | description: enables the rs485 feature at boot time. It can be disabled later with proper ioctl. |
| 41 | $ref: /schemas/types.yaml#/definitions/flag |
| 42 | |
| 43 | rs485-rx-during-tx: |
| 44 | description: enables the receiving of data even while sending data. |
| 45 | $ref: /schemas/types.yaml#/definitions/flag |