diff options
| author |   David Woodhouse <dwmw2@infradead.org> | 2007-04-05 00:19:43 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-09-22 14:49:21 +1000 |
| commit | e4533b243e5e0c3a26287a902a1ed0f8f5b1cec0 (patch) | |
| tree | 806ef6091f0a434c7c95560d6b24bcde113614ef /drivers/serial/pmac_zilog.c | |
| parent | [POWERPC] Cleanups for physmap_of.c (v2) (diff) | |
| download | linux-dev-e4533b243e5e0c3a26287a902a1ed0f8f5b1cec0.tar.xz linux-dev-e4533b243e5e0c3a26287a902a1ed0f8f5b1cec0.zip | |
[POWERPC] Optionally use new device number for pmac_zilog
This adds the option for the pmac_zilog driver to use the major/minor
numbers recently allocated specifically for it (/dev/ttyPZn) instead
of the /dev/ttySn numbers. The advantage of doing this is that it
allows the pmac_zilog and 8250 drivers to coexist. The disadvantage
of doing this is that it is a user-visible ABI change and it will
break existing working setups on powermacs, and could be confusing to
users.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/serial/pmac_zilog.c')
| -rw-r--r-- | drivers/serial/pmac_zilog.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c index f793ac212672..794bd0f50d73 100644 --- a/drivers/serial/pmac_zilog.c +++ b/drivers/serial/pmac_zilog.c @@ -88,6 +88,16 @@ MODULE_LICENSE("GPL"); #define PWRDBG(fmt, arg...) printk(KERN_DEBUG fmt , ## arg) +#ifdef CONFIG_SERIAL_PMACZILOG_TTYS +#define PMACZILOG_MAJOR TTY_MAJOR +#define PMACZILOG_MINOR 64 +#define PMACZILOG_NAME "ttyS" +#else +#define PMACZILOG_MAJOR 204 +#define PMACZILOG_MINOR 192 +#define PMACZILOG_NAME "ttyPZ" +#endif + /* * For the sake of early serial console, we can do a pre-probe @@ -99,9 +109,10 @@ static DEFINE_MUTEX(pmz_irq_mutex); static struct uart_driver pmz_uart_reg = { .owner = THIS_MODULE, - .driver_name = "ttyS", - .dev_name = "ttyS", - .major = TTY_MAJOR, + .driver_name = PMACZILOG_NAME, + .dev_name = PMACZILOG_NAME, + .major = PMACZILOG_MAJOR, + .minor = PMACZILOG_MINOR, }; @@ -1778,7 +1789,7 @@ static void pmz_console_write(struct console *con, const char *s, unsigned int c static int __init pmz_console_setup(struct console *co, char *options); static struct console pmz_console = { - .name = "ttyS", + .name = PMACZILOG_NAME, .write = pmz_console_write, .device = uart_console_device, .setup = pmz_console_setup, @@ -1802,7 +1813,6 @@ static int __init pmz_register(void) pmz_uart_reg.nr = pmz_ports_count; pmz_uart_reg.cons = PMACZILOG_CONSOLE; - pmz_uart_reg.minor = 64; /* * Register this driver with the serial core |