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| author |   Janusz Uzycki <j.uzycki@elproma.com.pl> | 2014-10-10 18:53:25 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-06 14:57:18 -0800 |
| commit | 7c573d7ea6c5a866cf89b7bf45fc5ab82d289cf1 (patch) | |
| tree | a8bf7ee47df629ff81802f1582538c3f047b534f /drivers/tty/serial/Kconfig | |
| parent | serial: mxs-auart: clean get_mctrl and set_mctrl (diff) | |
| download | linux-dev-7c573d7ea6c5a866cf89b7bf45fc5ab82d289cf1.tar.xz linux-dev-7c573d7ea6c5a866cf89b7bf45fc5ab82d289cf1.zip | |
serial: mxs-auart: use mctrl_gpio helpers for handling modem signals
Dedicated CTS and RTS pins are unusable together with a lot of other
peripherals because they share the same line. Pinctrl is limited.
Moreover, the AUART controller doesn't handle DTR/DSR/DCD/RI signals,
so we have to control them via GPIO.
This patch permits to use GPIOs to control the CTS/RTS/DTR/DSR/DCD/RI
signals.
Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Reviewed-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/Kconfig')
| -rw-r--r-- | drivers/tty/serial/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 649b784081c7..4e6a0babf6b9 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1408,6 +1408,7 @@ config SERIAL_MXS_AUART depends on ARCH_MXS tristate "MXS AUART support" select SERIAL_CORE + select SERIAL_MCTRL_GPIO if GPIOLIB help This driver supports the MXS Application UART (AUART) port. |