diff options
| author | Yegor Yefremov <yegorslists@googlemail.com> | 2016-05-31 11:59:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-26 00:30:42 +0300 |
| commit | 4ef03d328769eddbfeca1f1c958fdb181a69c341 (patch) | |
| tree | 1c58890f0008714dc47780cd65d6323ced2dacf1 /drivers/tty/serial/8250/8250_port.c | |
| parent | 434be0ae7aa746f481c3a22139e472dbc3f4f817 (diff) | |
| download | linux-4ef03d328769eddbfeca1f1c958fdb181a69c341.tar.xz | |
tty/serial/8250: use mctrl_gpio helpers
This patch permits the usage for GPIOs to control
the CTS/RTS/DTR/DSR/DCD/RI signals.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_port.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_port.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index bdfa659b9606..7481b95c6d84 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -1618,6 +1618,8 @@ static void serial8250_disable_ms(struct uart_port *port) if (up->bugs & UART_BUG_NOMSR) return; + mctrl_gpio_disable_ms(up->gpios); + up->ier &= ~UART_IER_MSI; serial_port_out(port, UART_IER, up->ier); } @@ -1630,6 +1632,8 @@ static void serial8250_enable_ms(struct uart_port *port) if (up->bugs & UART_BUG_NOMSR) return; + mctrl_gpio_enable_ms(up->gpios); + up->ier |= UART_IER_MSI; serial8250_rpm_get(up); @@ -1913,7 +1917,8 @@ unsigned int serial8250_do_get_mctrl(struct uart_port *port) ret |= TIOCM_DSR; if (status & UART_MSR_CTS) ret |= TIOCM_CTS; - return ret; + + return mctrl_gpio_get(up->gpios, &ret); } EXPORT_SYMBOL_GPL(serial8250_do_get_mctrl); |