diff options
author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2015-10-18 22:34:47 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 06:59:48 +0300 |
commit | cc568849370bb131d896f4c5933cc72bf7ee603d (patch) | |
tree | d0bc82b97cf3d5e3ecba03b3c67093f9a28c8123 /drivers/tty/serial/imx.c | |
parent | 90ebc4838666d148eac5bbac6f4044e5b25cd2d6 (diff) | |
download | linux-cc568849370bb131d896f4c5933cc72bf7ee603d.tar.xz |
serial: imx: reorder functions and simplify a bit
Now that imx_mctrl_check is implemented below imx_get_mctrl the former
can call the latter directly instead of via sport->port.ops->get_mctrl.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/imx.c')
-rw-r--r-- | drivers/tty/serial/imx.c | 90 |
1 files changed, 45 insertions, 45 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 086675e4ef73..591f1c26e3e9 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -312,51 +312,6 @@ static void imx_port_ucrs_restore(struct uart_port *port, #endif /* - * Handle any change of modem status signal since we were last called. - */ -static void imx_mctrl_check(struct imx_port *sport) -{ - unsigned int status, changed; - - status = sport->port.ops->get_mctrl(&sport->port); - changed = status ^ sport->old_status; - - if (changed == 0) - return; - - sport->old_status = status; - - if (changed & TIOCM_RI) - sport->port.icount.rng++; - if (changed & TIOCM_DSR) - sport->port.icount.dsr++; - if (changed & TIOCM_CAR) - uart_handle_dcd_change(&sport->port, status & TIOCM_CAR); - if (changed & TIOCM_CTS) - uart_handle_cts_change(&sport->port, status & TIOCM_CTS); - - wake_up_interruptible(&sport->port.state->port.delta_msr_wait); -} - -/* - * This is our per-port timeout handler, for checking the - * modem status signals. - */ -static void imx_timeout(unsigned long data) -{ - struct imx_port *sport = (struct imx_port *)data; - unsigned long flags; - - if (sport->port.state) { - spin_lock_irqsave(&sport->port.lock, flags); - imx_mctrl_check(sport); - spin_unlock_irqrestore(&sport->port.lock, flags); - - mod_timer(&sport->timer, jiffies + MCTRL_TIMEOUT); - } -} - -/* * interrupts disabled on entry */ static void imx_stop_tx(struct uart_port *port) @@ -868,6 +823,51 @@ static void imx_break_ctl(struct uart_port *port, int break_state) spin_unlock_irqrestore(&sport->port.lock, flags); } +/* + * Handle any change of modem status signal since we were last called. + */ +static void imx_mctrl_check(struct imx_port *sport) +{ + unsigned int status, changed; + + status = imx_get_mctrl(&sport->port); + changed = status ^ sport->old_status; + + if (changed == 0) + return; + + sport->old_status = status; + + if (changed & TIOCM_RI) + sport->port.icount.rng++; + if (changed & TIOCM_DSR) + sport->port.icount.dsr++; + if (changed & TIOCM_CAR) + uart_handle_dcd_change(&sport->port, status & TIOCM_CAR); + if (changed & TIOCM_CTS) + uart_handle_cts_change(&sport->port, status & TIOCM_CTS); + + wake_up_interruptible(&sport->port.state->port.delta_msr_wait); +} + +/* + * This is our per-port timeout handler, for checking the + * modem status signals. + */ +static void imx_timeout(unsigned long data) +{ + struct imx_port *sport = (struct imx_port *)data; + unsigned long flags; + + if (sport->port.state) { + spin_lock_irqsave(&sport->port.lock, flags); + imx_mctrl_check(sport); + spin_unlock_irqrestore(&sport->port.lock, flags); + + mod_timer(&sport->timer, jiffies + MCTRL_TIMEOUT); + } +} + #define RX_BUF_SIZE (PAGE_SIZE) static void imx_rx_dma_done(struct imx_port *sport) { |