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path: root/drivers/tty/serial/samsung_tty.c
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Diffstat (limited to 'drivers/tty/serial/samsung_tty.c')
-rw-r--r--drivers/tty/serial/samsung_tty.c13
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,