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dt-bindings: stm32: serial: Add optional reset 

STM32 serial can be reset via reset controller.
Add an optional reset property to stm32 usart bindings.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Erwan Le Ray 2019-05-24 17:30:38 +02:00 committed by Rob Herring
parent 4c0a59e112
commit 1419f64ef5
1 changed files with 1 additions and 0 deletions
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Documentation/devicetree/bindings/serial/st,stm32-usart.txt
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@ -13,6 +13,7 @@ Required properties:
- clocks: The input clock of the USART instance
Optional properties:
- resets: Must contain the phandle to the reset controller.
- pinctrl: The reference on the pins configuration
- st,hw-flow-ctrl: bool flag to enable hardware flow control.
- rs485-rts-delay, rs485-rx-during-tx, rs485-rts-active-low,