diff options
Diffstat (limited to 'drivers/tty/serial/samsung_tty.c')
| -rw-r--r-- | drivers/tty/serial/samsung_tty.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index e1585fbae909..d5ca904def34 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -2480,12 +2480,24 @@ s3c24xx_serial_console_write(struct console *co, const char *s, unsigned int count) { unsigned int ucon = rd_regl(cons_uart, S3C2410_UCON); + unsigned long flags; + bool locked = true; /* not possible to xmit on unconfigured port */ if (!s3c24xx_port_configured(ucon)) return; + if (cons_uart->sysrq) + locked = false; + else if (oops_in_progress) + locked = spin_trylock_irqsave(&cons_uart->lock, flags); + else + spin_lock_irqsave(&cons_uart->lock, flags); + uart_console_write(cons_uart, s, count, s3c24xx_serial_console_putchar); + + if (locked) + spin_unlock_irqrestore(&cons_uart->lock, flags); } /* Shouldn't be __init, as it can be instantiated from other module */ @@ -2814,6 +2826,7 @@ static const struct s3c24xx_serial_drv_data s5l_serial_drv_data = { .num_clks = 1, .clksel_mask = 0, .clksel_shift = 0, + .ucon_mask = APPLE_S5L_UCON_MASK, }, .def_cfg = { .ucon = APPLE_S5L_UCON_DEFAULT, |