1d50f974cSBenjamin Gaignard# SPDX-License-Identifier: GPL-2.0 2d50f974cSBenjamin Gaignard%YAML 1.2 3d50f974cSBenjamin Gaignard--- 4d50f974cSBenjamin Gaignard$id: http://devicetree.org/schemas/serial/rs485.yaml# 5d50f974cSBenjamin Gaignard$schema: http://devicetree.org/meta-schemas/core.yaml# 6d50f974cSBenjamin Gaignard 7d50f974cSBenjamin Gaignardtitle: RS485 serial communications Bindings 8d50f974cSBenjamin Gaignard 9*9f60a65bSRob Herringdescription: The RTS signal is capable of automatically controlling line 10*9f60a65bSRob Herring direction for the built-in half-duplex mode. The properties described 11*9f60a65bSRob Herring hereafter shall be given to a half-duplex capable UART node. 12d50f974cSBenjamin Gaignard 13d50f974cSBenjamin Gaignardmaintainers: 14d50f974cSBenjamin Gaignard - Rob Herring <robh@kernel.org> 15d50f974cSBenjamin Gaignard 16d50f974cSBenjamin Gaignardproperties: 17d50f974cSBenjamin Gaignard rs485-rts-delay: 18d50f974cSBenjamin Gaignard description: prop-encoded-array <a b> 19d50f974cSBenjamin Gaignard allOf: 20d50f974cSBenjamin Gaignard - $ref: /schemas/types.yaml#/definitions/uint32-array 21d50f974cSBenjamin Gaignard - items: 22d50f974cSBenjamin Gaignard items: 23d50f974cSBenjamin Gaignard - description: 24d50f974cSBenjamin Gaignard Delay between rts signal and beginning of data sent in milliseconds. 25d50f974cSBenjamin Gaignard It corresponds to the delay before sending data. 26d50f974cSBenjamin Gaignard default: 0 27d50f974cSBenjamin Gaignard maximum: 1000 28d50f974cSBenjamin Gaignard - description: 29d50f974cSBenjamin Gaignard Delay between end of data sent and rts signal in milliseconds. 30d50f974cSBenjamin Gaignard It corresponds to the delay after sending data and actual release of the line. 31d50f974cSBenjamin Gaignard default: 0 32d50f974cSBenjamin Gaignard maximum: 1000 33d50f974cSBenjamin Gaignard 34d50f974cSBenjamin Gaignard rs485-rts-active-low: 35d50f974cSBenjamin Gaignard description: drive RTS low when sending (default is high). 36d50f974cSBenjamin Gaignard $ref: /schemas/types.yaml#/definitions/flag 37d50f974cSBenjamin Gaignard 38d50f974cSBenjamin Gaignard linux,rs485-enabled-at-boot-time: 39*9f60a65bSRob Herring description: enables the rs485 feature at boot time. It can be disabled 40*9f60a65bSRob Herring later with proper ioctl. 41d50f974cSBenjamin Gaignard $ref: /schemas/types.yaml#/definitions/flag 42d50f974cSBenjamin Gaignard 43d50f974cSBenjamin Gaignard rs485-rx-during-tx: 44d50f974cSBenjamin Gaignard description: enables the receiving of data even while sending data. 45d50f974cSBenjamin Gaignard $ref: /schemas/types.yaml#/definitions/flag 46*9f60a65bSRob Herring... 47