mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-26 19:00:25 +00:00
Code Issues Releases Wiki Activity

[SPARC64]: In sunsab driver, make sure to set the uart timeout.

Browse source 
This breaks serial consoles badly.  Thanks to Eric Brower
for tracking down the problem.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2005-04-21 22:18:03 -07:00 committed by David S. Miller
parent 623f41eb92
commit b179fb8ca5
1 changed files with 11 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/serial/sunsab.c
View file

@ -682,7 +682,8 @@ static void calc_ebrg(int baud, int *n_ret, int *m_ret)
/* Internal routine, port->lock is held and local interrupts are disabled. */
static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cflag,
unsigned int iflag, int baud)
unsigned int iflag, unsigned int baud,
unsigned int quot)
{
unsigned int ebrg;
unsigned char dafo;
@ -766,6 +767,9 @@ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cfla
up->port.ignore_status_mask |= (SAB82532_ISR0_RPF |
SAB82532_ISR0_TCD);
uart_update_timeout(&up->port, cflag,
(up->port.uartclk / (16 * quot)));
/* Now bang the new settings into the chip. */
sunsab_cec_wait(up);
sunsab_tec_wait(up);
@ -784,10 +788,11 @@ static void sunsab_set_termios(struct uart_port *port, struct termios *termios,
{
struct uart_sunsab_port *up = (struct uart_sunsab_port *) port;
unsigned long flags;
int baud = uart_get_baud_rate(port, termios, old, 0, 4000000);
unsigned int baud = uart_get_baud_rate(port, termios, old, 0, 4000000);
unsigned int quot = uart_get_divisor(port, baud);
spin_lock_irqsave(&up->port.lock, flags);
sunsab_convert_to_sab(up, termios->c_cflag, termios->c_iflag, baud);
sunsab_convert_to_sab(up, termios->c_cflag, termios->c_iflag, baud, quot);
spin_unlock_irqrestore(&up->port.lock, flags);
}
@ -880,7 +885,7 @@ static int sunsab_console_setup(struct console *con, char *options)
{
struct uart_sunsab_port *up = &sunsab_ports[con->index];
unsigned long flags;
int baud;
unsigned int baud, quot;
printk("Console: ttyS%d (SAB82532)\n",
(sunsab_reg.minor - 64) + con->index);
@ -926,7 +931,8 @@ static int sunsab_console_setup(struct console *con, char *options)
SAB82532_IMR1_XPR;
writeb(up->interrupt_mask1, &up->regs->w.imr1);
sunsab_convert_to_sab(up, con->cflag, 0, baud);
quot = uart_get_divisor(&up->port, baud);
sunsab_convert_to_sab(up, con->cflag, 0, baud, quot);
sunsab_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
spin_unlock_irqrestore(&up->port.lock, flags);