diff options
| author | Fabio Estevam <fabio.estevam@nxp.com> | 2017-01-08 00:29:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 13:51:25 +0300 |
| commit | 7b7e8e8e8fc6a9f1f0372d1ffb271ecfdaf0285a (patch) | |
| tree | 0bd97ad3f037398146ddc49ff995669384e6eb42 /include | |
| parent | 3f08087826950de4688da0aea4e4f64f536fcdd6 (diff) | |
| download | linux-7b7e8e8e8fc6a9f1f0372d1ffb271ecfdaf0285a.tar.xz | |
serial: imx: Allow passing 'rst-gpios' for rs485 mode
According to Documentation/devicetree/bindings/serial/serial.txt the
generic 'rts-gpios' property can be used to specify the GPIO for RTS
functionality.
Currently it is not possible to use the imx UART port in rs485 mode when
the 'rts-gpios' property is passed in the device tree.
The imx uart driver only checks for the presence of the built-in RTS pin,
via 'uart-has-rtscts' property and disable the rs485 flag if this property
is absent.
So fix this logic by also checking if RTS pin has been passed via GPIO.
Tested on a imx6dl based board.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions