diff options
Diffstat (limited to 'Documentation/devicetree/bindings/serial/rs485.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/rs485.yaml | 47 |
1 files changed, 25 insertions, 22 deletions
diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml index d4beaf11222d..fe90569475e1 100644 --- a/Documentation/devicetree/bindings/serial/rs485.yaml +++ b/Documentation/devicetree/bindings/serial/rs485.yaml @@ -6,40 +6,43 @@ $schema: http://devicetree.org/meta-schemas/core.yaml# title: RS485 serial communications Bindings -description: The RTS signal is capable of automatically controlling - line direction for the built-in half-duplex mode. - The properties described hereafter shall be given to a - half-duplex capable UART node. +description: The RTS signal is capable of automatically controlling line + direction for the built-in half-duplex mode. The properties described + hereafter shall be given to a half-duplex capable UART node. maintainers: - - Rob Herring <robh@kernel.org> + - Rob Herring <robh@kernel.org> properties: rs485-rts-delay: description: prop-encoded-array <a b> - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32-array - - items: - items: - - description: - Delay between rts signal and beginning of data sent in milliseconds. - It corresponds to the delay before sending data. - default: 0 - maximum: 1000 - - description: - Delay between end of data sent and rts signal in milliseconds. - It corresponds to the delay after sending data and actual release of the line. - default: 0 - maximum: 1000 + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + items: + - description: Delay between rts signal and beginning of data sent in + milliseconds. It corresponds to the delay before sending data. + default: 0 + maximum: 1000 + - description: Delay between end of data sent and rts signal in milliseconds. + It corresponds to the delay after sending data and actual release + of the line. + default: 0 + maximum: 1000 rs485-rts-active-low: description: drive RTS low when sending (default is high). $ref: /schemas/types.yaml#/definitions/flag linux,rs485-enabled-at-boot-time: - description: enables the rs485 feature at boot time. It can be disabled later with proper ioctl. + description: enables the rs485 feature at boot time. It can be disabled + later with proper ioctl. $ref: /schemas/types.yaml#/definitions/flag rs485-rx-during-tx: - description: enables the receiving of data even while sending data. - $ref: /schemas/types.yaml#/definitions/flag + description: enables the receiving of data even while sending data. + $ref: /schemas/types.yaml#/definitions/flag + + rs485-term-gpios: + description: GPIO pin to enable RS485 bus termination. + maxItems: 1 +... |