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| author | Fabio Estevam <fabio.estevam@nxp.com> | 2017-01-07 19:29:13 -0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 11:51:25 +0100 |
| commit | 7b7e8e8e8fc6a9f1f0372d1ffb271ecfdaf0285a (patch) | |
| tree | 0bd97ad3f037398146ddc49ff995669384e6eb42 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | serial: 8250_lpss: avoid potential kernel crash when remove (diff) | |
| download | linux-7b7e8e8e8fc6a9f1f0372d1ffb271ecfdaf0285a.tar.gz linux-7b7e8e8e8fc6a9f1f0372d1ffb271ecfdaf0285a.zip | |
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 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions