dt-bindings: serial: stm32: add RS485 optional properties

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Add options for enabling RS485 hardware control and configuring
Driver Enable signal:
- rs485-rts-delay
- rs485-rx-during-tx
- rs485-rts-active-low
- linux,rs485-enabled-at-boot-time

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Bich HEMON and committed by

Greg Kroah-Hartman 8 years ago 241672cb ce290a19

1 changed file

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Documentation

devicetree

bindings

serial

st,stm32-usart.txt

Documentation/devicetree/bindings/serial/st,stm32-usart.txt

··· 15 15 Optional properties: 16 16 - pinctrl: The reference on the pins configuration 17 17 - st,hw-flow-ctrl: bool flag to enable hardware flow control. 18 + - rs485-rts-delay, rs485-rx-during-tx, rs485-rts-active-low, 19 + linux,rs485-enabled-at-boot-time: see rs485.txt. 18 20 - dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt 19 21 - dma-names: "rx" and/or "tx" 20 22