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dt-bindings: serial: add generic DT binding for announcing RTS/CTS lines

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Add support of generic DT binding for annoucing RTS/CTS lines. The initial
binding 'st,hw-flow-control' is not needed anymore since generic binding
is available, but is kept for backward compatibility.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200520133932.30441-2-erwan.leray@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erwan Le Ray 2020-05-20 15:39:31 +02:00 committed by Greg Kroah-Hartman
parent 890814504e
commit b2cc2b5111
1 changed files with 3 additions and 1 deletions
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4
Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
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@ -35,9 +35,11 @@ properties:
description: label associated with this uart
st,hw-flow-ctrl:
description: enable hardware flow control
description: enable hardware flow control (deprecated)
$ref: /schemas/types.yaml#/definitions/flag
uart-has-rtscts: true
dmas:
minItems: 1
maxItems: 2