From: George Hilliard <ghilliard@kopismobile.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-serial@vger.kernel.org, devicetree@vger.kernel.org
Cc: George Hilliard <ghilliard@kopismobile.com>
Subject: [PATCH 1/2] dt-bindings: serial: document fsl,inverted-tx and -rx options
Date: Mon, 10 Feb 2020 11:49:41 -0600 [thread overview]
Message-ID: <20200210174942.14182-2-ghilliard@kopismobile.com> (raw)
In-Reply-To: <20200210174942.14182-1-ghilliard@kopismobile.com>
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 <ghilliard@kopismobile.com>
---
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"
--
2.25.0
--
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next prev parent reply other threads:[~2020-02-10 17:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 17:49 [PATCH 0/2] Implement support for inverted serial TX/RX on i.MX George Hilliard
2020-02-10 17:49 ` George Hilliard [this message]
2020-02-10 17:49 ` [PATCH 2/2] tty: imx serial: Implement support for reversing TX and RX polarity George Hilliard
2020-02-10 18:11 ` Uwe Kleine-König
2020-02-10 18:38 ` George Hilliard
2020-02-10 21:16 ` Uwe Kleine-König
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