diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-03-07 16:12:29 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-19 03:19:45 +0400 |
| commit | 6aad04f21374633bd8cecf25024553d1e11a9522 (patch) | |
| tree | 9e3351e53b68d158b436a737049cbe2ee01ff126 /drivers/tty/serial/ifx6x60.c | |
| parent | 6982a398426a22166eaf049b79544536fdd6429f (diff) | |
| download | linux-6aad04f21374633bd8cecf25024553d1e11a9522.tar.xz | |
TTY: add tty_port_tty_wakeup helper
It allows for cleaning up on a considerable amount of places. They did
port_get, wakeup, kref_put. Now the only thing needed is to call
tty_port_tty_wakeup which does exactly that.
One exception is ifx6x60 where tty_wakeup was open-coded. We now call
tty_wakeup properly there.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/ifx6x60.c')
| -rw-r--r-- | drivers/tty/serial/ifx6x60.c | 33 |
1 files changed, 2 insertions, 31 deletions
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c index 68d7ce997ede..d723d4193b90 100644 --- a/drivers/tty/serial/ifx6x60.c +++ b/drivers/tty/serial/ifx6x60.c @@ -443,25 +443,6 @@ static void ifx_spi_setup_spi_header(unsigned char *txbuffer, int tx_count, } /** - * ifx_spi_wakeup_serial - SPI space made - * @port_data: our SPI device - * - * We have emptied the FIFO enough that we want to get more data - * queued into it. Poke the line discipline via tty_wakeup so that - * it will feed us more bits - */ -static void ifx_spi_wakeup_serial(struct ifx_spi_device *ifx_dev) -{ - struct tty_struct *tty; - - tty = tty_port_tty_get(&ifx_dev->tty_port); - if (!tty) - return; - tty_wakeup(tty); - tty_kref_put(tty); -} - -/** * ifx_spi_prepare_tx_buffer - prepare transmit frame * @ifx_dev: our SPI device * @@ -506,7 +487,7 @@ static int ifx_spi_prepare_tx_buffer(struct ifx_spi_device *ifx_dev) tx_count += temp_count; if (temp_count == queue_length) /* poke port to get more data */ - ifx_spi_wakeup_serial(ifx_dev); + tty_port_tty_wakeup(&ifx_dev->tty_port); else /* more data in port, use next SPI message */ ifx_dev->spi_more = 1; } @@ -683,8 +664,6 @@ static void ifx_spi_insert_flip_string(struct ifx_spi_device *ifx_dev, static void ifx_spi_complete(void *ctx) { struct ifx_spi_device *ifx_dev = ctx; - struct tty_struct *tty; - struct tty_ldisc *ldisc = NULL; int length; int actual_length; unsigned char more; @@ -762,15 +741,7 @@ complete_exit: */ ifx_spi_power_state_clear(ifx_dev, IFX_SPI_POWER_DATA_PENDING); - tty = tty_port_tty_get(&ifx_dev->tty_port); - if (tty) { - ldisc = tty_ldisc_ref(tty); - if (ldisc) { - ldisc->ops->write_wakeup(tty); - tty_ldisc_deref(ldisc); - } - tty_kref_put(tty); - } + tty_port_tty_wakeup(&ifx_dev->tty_port); } } } |