diff options
Diffstat (limited to 'drivers/tty/serial/ifx6x60.c')
| -rw-r--r-- | drivers/tty/serial/ifx6x60.c | 93 |
1 files changed, 8 insertions, 85 deletions
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c index 8cb6d8d66a1..59039097099 100644 --- a/drivers/tty/serial/ifx6x60.c +++ b/drivers/tty/serial/ifx6x60.c @@ -270,23 +270,6 @@ static void mrdy_assert(struct ifx_spi_device *ifx_dev) } /** - * ifx_spi_hangup - hang up an IFX device - * @ifx_dev: our SPI device - * - * Hang up the tty attached to the IFX device if one is currently - * open. If not take no action - */ -static void ifx_spi_ttyhangup(struct ifx_spi_device *ifx_dev) -{ - struct tty_port *pport = &ifx_dev->tty_port; - struct tty_struct *tty = tty_port_tty_get(pport); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } -} - -/** * ifx_spi_timeout - SPI timeout * @arg: our SPI device * @@ -298,7 +281,7 @@ static void ifx_spi_timeout(unsigned long arg) struct ifx_spi_device *ifx_dev = (struct ifx_spi_device *)arg; dev_warn(&ifx_dev->spi_dev->dev, "*** SPI Timeout ***"); - ifx_spi_ttyhangup(ifx_dev); + tty_port_tty_hangup(&ifx_dev->tty_port, false); mrdy_set_low(ifx_dev); clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags); } @@ -443,25 +426,6 @@ 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 * @@ -481,7 +445,6 @@ static int ifx_spi_prepare_tx_buffer(struct ifx_spi_device *ifx_dev) unsigned char *tx_buffer; tx_buffer = ifx_dev->tx_buffer; - memset(tx_buffer, 0, IFX_SPI_TRANSFER_SIZE); /* make room for required SPI header */ tx_buffer += IFX_SPI_HEADER_OVERHEAD; @@ -507,7 +470,7 @@ 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; } @@ -615,7 +578,7 @@ static int ifx_port_activate(struct tty_port *port, struct tty_struct *tty) tty->driver_data = ifx_dev; /* allows flip string push from int context */ - tty->low_latency = 1; + port->low_latency = 1; /* set flag to allows data transfer */ set_bit(IFX_SPI_STATE_IO_AVAILABLE, &ifx_dev->flags); @@ -670,12 +633,8 @@ static const struct tty_operations ifx_spi_serial_ops = { static void ifx_spi_insert_flip_string(struct ifx_spi_device *ifx_dev, unsigned char *chars, size_t size) { - struct tty_struct *tty = tty_port_tty_get(&ifx_dev->tty_port); - if (!tty) - return; - tty_insert_flip_string(tty, chars, size); - tty_flip_buffer_push(tty); - tty_kref_put(tty); + tty_insert_flip_string(&ifx_dev->tty_port, chars, size); + tty_flip_buffer_push(&ifx_dev->tty_port); } /** @@ -688,8 +647,6 @@ 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; @@ -767,15 +724,7 @@ 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); } } } @@ -967,7 +916,7 @@ static irqreturn_t ifx_spi_reset_interrupt(int irq, void *dev) set_bit(MR_INPROGRESS, &ifx_dev->mdm_reset_state); if (!solreset) { /* unsolicited reset */ - ifx_spi_ttyhangup(ifx_dev); + tty_port_tty_hangup(&ifx_dev->tty_port, false); } } else { /* exited reset */ @@ -1059,7 +1008,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi) return -ENODEV; } - pl_data = (struct ifx_modem_platform_data *)spi->dev.platform_data; + pl_data = dev_get_platdata(&spi->dev); if (!pl_data) { dev_err(&spi->dev, "missing platform data!"); return -ENODEV; @@ -1330,30 +1279,6 @@ static void ifx_spi_spi_shutdown(struct spi_device *spi) */ /** - * ifx_spi_spi_suspend - suspend SPI on system suspend - * @dev: device being suspended - * - * Suspend the SPI side. No action needed on Intel MID platforms, may - * need extending for other systems. - */ -static int ifx_spi_spi_suspend(struct spi_device *spi, pm_message_t msg) -{ - return 0; -} - -/** - * ifx_spi_spi_resume - resume SPI side on system resume - * @dev: device being suspended - * - * Suspend the SPI side. No action needed on Intel MID platforms, may - * need extending for other systems. - */ -static int ifx_spi_spi_resume(struct spi_device *spi) -{ - return 0; -} - -/** * ifx_spi_pm_suspend - suspend modem on system suspend * @dev: device being suspended * @@ -1442,8 +1367,6 @@ static struct spi_driver ifx_spi_driver = { .probe = ifx_spi_spi_probe, .shutdown = ifx_spi_spi_shutdown, .remove = ifx_spi_spi_remove, - .suspend = ifx_spi_spi_suspend, - .resume = ifx_spi_spi_resume, .id_table = ifx_id_table }; |