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serial: suncore: Add 'ignore_line' argument to sunserial_console_match().

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This tells the logic to ignore the line match when deciding whether the
device is the OpenFirmware specified console device or not.

This is going to be used in the SU driver for rsc-console detection.

There is probably a better way to handle this, but this is the least
intrusive solution for now which we can validate won't break any other
cases.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2009-11-24 14:03:34 -08:00
parent 8301d386af
commit 4e3533d05b
5 changed files with 21 additions and 15 deletions
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19
drivers/serial/suncore.c
View file

@ -53,20 +53,21 @@ void sunserial_unregister_minors(struct uart_driver *drv, int count)
EXPORT_SYMBOL(sunserial_unregister_minors);
int sunserial_console_match(struct console *con, struct device_node *dp,
struct uart_driver *drv, int line)
struct uart_driver *drv, int line, bool ignore_line)
{
int off;
if (!con || of_console_device != dp)
return 0;
off = 0;
if (of_console_options &&
*of_console_options == 'b')
off = 1;
if (!ignore_line) {
int off = 0;
if ((line & 1) != off)
return 0;
if (of_console_options &&
*of_console_options == 'b')
off = 1;
if ((line & 1) != off)
return 0;
}
con->index = line;
drv->cons = con;

2
drivers/serial/suncore.h
View file

@ -26,7 +26,7 @@ extern int sunserial_register_minors(struct uart_driver *, int);
extern void sunserial_unregister_minors(struct uart_driver *, int);
extern int sunserial_console_match(struct console *, struct device_node *,
struct uart_driver *, int);
struct uart_driver *, int, bool);
extern void sunserial_console_termios(struct console *);
#endif /* !(_SERIAL_SUN_H) */

6
drivers/serial/sunsab.c
View file

@ -1027,10 +1027,12 @@ static int __devinit sab_probe(struct of_device *op, const struct of_device_id *
goto out1;
sunserial_console_match(SUNSAB_CONSOLE(), op->node,
&sunsab_reg, up[0].port.line);
&sunsab_reg, up[0].port.line,
false);
sunserial_console_match(SUNSAB_CONSOLE(), op->node,
&sunsab_reg, up[1].port.line);
&sunsab_reg, up[1].port.line,
false);
err = uart_add_one_port(&sunsab_reg, &up[0].port);
if (err)

3
drivers/serial/sunsu.c
View file

@ -1468,7 +1468,8 @@ static int __devinit su_probe(struct of_device *op, const struct of_device_id *m
up->port.ops = &sunsu_pops;
sunserial_console_match(SUNSU_CONSOLE(), dp,
&sunsu_reg, up->port.line);
&sunsu_reg, up->port.line,
false);
err = uart_add_one_port(&sunsu_reg, &up->port);
if (err)
goto out_unmap;

6
drivers/serial/sunzilog.c
View file

@ -1416,7 +1416,8 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
if (!keyboard_mouse) {
if (sunserial_console_match(SUNZILOG_CONSOLE(), op->node,
&sunzilog_reg, up[0].port.line))
&sunzilog_reg, up[0].port.line,
false))
up->flags |= SUNZILOG_FLAG_IS_CONS;
err = uart_add_one_port(&sunzilog_reg, &up[0].port);
if (err) {
@ -1425,7 +1426,8 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
return err;
}
if (sunserial_console_match(SUNZILOG_CONSOLE(), op->node,
&sunzilog_reg, up[1].port.line))
&sunzilog_reg, up[1].port.line,
false))
up->flags |= SUNZILOG_FLAG_IS_CONS;
err = uart_add_one_port(&sunzilog_reg, &up[1].port);
if (err) {