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| author |   George Hilliard <ghilliard@kopismobile.com> | 2020-02-26 16:23:18 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-06 13:26:26 +0100 |
| commit | 9dd5185a206d714a6e960095471b472171eccf0a (patch) | |
| tree | 3f2a3fc59899b9fd22a4253891faeaa373157308 /Documentation/devicetree/bindings/serial | |
| parent | serial: ar933x_uart: add RS485 support (diff) | |
| download | wireguard-linux-9dd5185a206d714a6e960095471b472171eccf0a.tar.xz wireguard-linux-9dd5185a206d714a6e960095471b472171eccf0a.zip | |
dt-bindings: serial: document fsl,inverted-tx and -rx options
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>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200226222319.18383-2-ghilliard@kopismobile.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 4 |
1 files changed, 4 insertions, 0 deletions
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" |