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From: George Hilliard <>
To: Greg Kroah-Hartman <>
Cc: George Hilliard <>,,,
	NXP Linux Team <>,
Subject: [PATCH v3 1/2] dt-bindings: serial: document fsl,inverted-tx and -rx options
Date: Wed, 12 Feb 2020 10:35:37 -0600	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Add a description for the new fsl,inverted-tx and fsl,inverted-rx
options for the i.MX UART peripheral.

Signed-off-by: George Hilliard <>
v1..v2: Removed confidentiality spam

 Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index 35957cbf1571..c8d677f9491f 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -8,6 +8,10 @@ Required properties:
 Optional properties:
 - fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
                   in DCE mode by default.
+- fsl,inverted-tx , fsl,inverted-rx : Indicate that the hardware attached
+  to the peripheral inverts the signal transmitted or received,
+  respectively, and that the peripheral should invert its output/input
+  using the INVT/INVR registers.
 - rs485-rts-delay, rs485-rts-active-low, rs485-rx-during-tx,
   linux,rs485-enabled-at-boot-time: see rs485.txt. Note that for RS485
   you must enable either the "uart-has-rtscts" or the "rts-gpios"

  reply	other threads:[~2020-02-12 16:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-12 16:35 [PATCH v3 0/2] Implement support for inverted serial TX/RX on i.MX George Hilliard
2020-02-12 16:35 ` George Hilliard [this message]
2020-02-18 23:07   ` [PATCH v3 1/2] dt-bindings: serial: document fsl,inverted-tx and -rx options Rob Herring
2020-02-12 16:35 ` [PATCH v3 2/2] tty: imx serial: Implement support for reversing TX and RX polarity George Hilliard
2020-02-12 20:47   ` Uwe Kleine-König

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