diff options
Diffstat (limited to 'drivers/tty/serial/bcm63xx_uart.c')
-rw-r--r-- | drivers/tty/serial/bcm63xx_uart.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index a3cefa153456..51df9d2d8bfc 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -285,10 +285,9 @@ static void bcm_uart_do_rx(struct uart_port *port) flag = TTY_PARITY; } - if (uart_handle_sysrq_char(port, c)) + if (uart_prepare_sysrq_char(port, c)) continue; - if ((cstat & port->ignore_status_mask) == 0) tty_insert_flip_char(tty_port, c, flag); @@ -309,8 +308,8 @@ static void bcm_uart_do_tx(struct uart_port *port) val = bcm_uart_readl(port, UART_MCTL_REG); val = (val & UART_MCTL_TXFIFOFILL_MASK) >> UART_MCTL_TXFIFOFILL_SHIFT; - - pending = uart_port_tx_limited(port, ch, port->fifosize - val, + pending = uart_port_tx_limited_flags(port, ch, UART_TX_NOSTOP, + port->fifosize - val, true, bcm_uart_writel(port, ch, UART_FIFO_REG), ({})); @@ -321,6 +320,9 @@ static void bcm_uart_do_tx(struct uart_port *port) val = bcm_uart_readl(port, UART_IR_REG); val &= ~UART_TX_INT_MASK; bcm_uart_writel(port, val, UART_IR_REG); + + if (uart_tx_stopped(port)) + bcm_uart_stop_tx(port); } /* @@ -353,7 +355,7 @@ static irqreturn_t bcm_uart_interrupt(int irq, void *dev_id) estat & UART_EXTINP_DCD_MASK); } - uart_port_unlock(port); + uart_unlock_and_check_sysrq(port); return IRQ_HANDLED; } @@ -703,20 +705,14 @@ static void bcm_console_write(struct console *co, const char *s, { struct uart_port *port; unsigned long flags; - int locked; + int locked = 1; port = &ports[co->index]; - local_irq_save(flags); - if (port->sysrq) { - /* bcm_uart_interrupt() already took the lock */ - locked = 0; - } else if (oops_in_progress) { - locked = uart_port_trylock(port); - } else { - uart_port_lock(port); - locked = 1; - } + if (oops_in_progress) + locked = uart_port_trylock_irqsave(port, &flags); + else + uart_port_lock_irqsave(port, &flags); /* call helper to deal with \r\n */ uart_console_write(port, s, count, bcm_console_putchar); @@ -725,8 +721,7 @@ static void bcm_console_write(struct console *co, const char *s, wait_for_xmitr(port); if (locked) - uart_port_unlock(port); - local_irq_restore(flags); + uart_port_unlock_irqrestore(port, flags); } /* @@ -889,7 +884,7 @@ MODULE_DEVICE_TABLE(of, bcm63xx_of_match); */ static struct platform_driver bcm_uart_platform_driver = { .probe = bcm_uart_probe, - .remove_new = bcm_uart_remove, + .remove = bcm_uart_remove, .driver = { .name = "bcm63xx_uart", .of_match_table = bcm63xx_of_match, |