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Commit 4038e348 authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Greg Kroah-Hartman
Browse files

dt-bindings: serial: document rs485 bindings for various devices 



Atmel USART, Freescale UARTs and OMAP UART all support the rs485 binding
described in rs485.txt, this commit just makes that explicit.

Acked-by: default avatarNicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent de9e33bd

Documentation/devicetree/bindings/serial/atmel-usart.txt

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Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ Optional properties: 
	- dma-names: "rx" for RX channel, "tx" for TX channel.

- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO

  capable USARTs.

- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt



<chip> compatible description:

- at91rm9200:  legacy USART support

Documentation/devicetree/bindings/serial/fsl-imx-uart.txt

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@@ -9,6 +9,7 @@ Optional properties: 
- fsl,irda-mode : Indicate the uart supports irda mode

- fsl,dte-mode : Indicate the uart works in DTE mode. The uart works

                  in DCE mode by default.

- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt



Please check Documentation/devicetree/bindings/serial/serial.txt

for the complete list of generic properties.

Documentation/devicetree/bindings/serial/fsl-lpuart.txt

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@@ -16,6 +16,7 @@ Required properties: 
Optional properties:

- dmas: A list of two dma specifiers, one for each entry in dma-names.

- dma-names: should contain "tx" and "rx".

- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt



Note: Optional properties for DMA support. Write them both or both not.

Documentation/devicetree/bindings/serial/omap_serial.txt

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@@ -19,6 +19,7 @@ Optional properties: 
- dmas : DMA specifier, consisting of a phandle to the DMA controller

         node and a DMA channel number.

- dma-names : "rx" for receive channel, "tx" for transmit channel.

- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt



Example: